Publish native Parquet task index (part 3)

Native typed, Zstd-compressed Parquet index for 92 public tasks (21 core). Static release matches Dataset commit 73f421307434e0953bb9fd5b5d54e0150dffd875.

.gitattributes

@@ -116,3 +116,10 @@ tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/reference/ldo_008_fer_mi
 tasks/ihp-sg13g2/analog-db/cases/ldo_009_fer_5t_pass/reference/ldo_009_fer_5t_pass.gds filter=lfs diff=lfs merge=lfs -text
 tasks/ihp-sg13g2/analog-db/cases/sw_002_chopper_diff/reference/sw_002_chopper_diff.gds filter=lfs diff=lfs merge=lfs -text
 tasks/ihp-sg13g2/analog-db/cases/sw_003_binary_capbank/reference/sw_003_binary_capbank.gds filter=lfs diff=lfs merge=lfs -text
+tasks/sky130A/OpenFASOC/cases/current_mirror/reference/current_mirror.gds filter=lfs diff=lfs merge=lfs -text
+tasks/sky130A/OpenFASOC/cases/two_stage_opamp/reference/two_stage_opamp.gds filter=lfs diff=lfs merge=lfs -text
+tasks/sky130A/sky130_ef_ip__ccomp3v/cases/ccomp3v/reference/ccomp3v.gds filter=lfs diff=lfs merge=lfs -text
+tasks/sky130A/sky130_ef_ip__opamp/cases/opamp/reference/opamp.gds filter=lfs diff=lfs merge=lfs -text
+tasks/sky130A/sky130_ef_ip__rdac3v_8bit/cases/rdac3v_8bit/reference/rdac3v_8bit.gds filter=lfs diff=lfs merge=lfs -text
+tasks/sky130A/sky130_ef_ip__samplehold/cases/samplehold/reference/samplehold.gds filter=lfs diff=lfs merge=lfs -text
+tasks/sky130A/sky130_ef_ip__simple_por/cases/simple_por/reference/simple_por.gds filter=lfs diff=lfs merge=lfs -text

tasks/ihp-sg13g2/analog-db/cases/amp_035_fan_chopper_cmfb_dual/materials/testbench.spice

@@ -26,7 +26,6 @@ IN 0 outn pulse(0 {kick_a} 30u 20n 20n 2u 200u)
 XDUT inp inn outp outn vdd 0 vb1 vb2 vb3 ref rs s1p s1n ctl ctl1 amp_035_fan_chopper_cmfb_dual
 .control
 set noaskquit
-set num_threads=1
 set numdgt=15
 set measdgt=15
 op

tasks/ihp-sg13g2/analog-db/cases/amp_035_fan_chopper_cmfb_dual/problem.md

@@ -14,7 +14,7 @@ W/L are rounded to 10 nm so centred contacts remain on the 5 nm manufacturing gr
 
 TT MOS, typical MIM/high-poly, 27 C, 1.2 V supply, 0.6 V input common mode, 10 pF on each output. The external voltage sources are vb1_core core__vb1 vss dc 0.3983759766; vb2_core core__vb2 vss dc 0.65; vb3_core core__vb3 vss dc 0.45; vrefout vref_out vss dc 0.5; vrefs1 vref_s1 vss dc 0.3265. Both the no-disturbance condition and the following combined sequence run for 150 us with a 2 ns maximum step. The differential command rises from 0 to 10 mV at 10 us and returns after 10 us; equal +20 uA currents enter both outputs at 30 us for 2 us. The output reference rises by 25 mV at 50 us for 15 us; input common mode rises by 25 mV at 75 us for 15 us. The stage-1 reference rises by 10 mV at 110 us for 15 us. All edges are 20 ns. Pulse widths are measured after the rising edge, so falling edges start one edge duration after nominal delay plus width. The unperturbed condition sets every step and kick amplitude to zero. The two CMFB loops, where present, remain connected throughout. Monitor ports are unloaded; their extraction and routing parasitics remain. No external clock is applied: straight-through chopper gates stay tied to their actual rails, and crossed paths stay off.
 
-The external fixture enforces inp = icm + (signal − (outp−outn))/2 and inn = icm − (signal − (outp−outn))/2. It closes only the differential measurement loop; the DUT transistors close common-mode feedback. The frequency deck retains this DC feedback, isolates each feedback branch with 1 TH/1 F low-pass elements and injects +0.5/−0.5 V AC. The actual differential excitation remains 1 V and residual common-mode must be at most 1 uV.
+The external fixture sets inp = icm + (signal − (outp−outn))/2, inn = icm − (signal − (outp−outn))/2, closing only the differential measurement loop; DUT transistors implement common-mode feedback. The frequency-domain deck retains DC feedback, isolates each feedback branch with a 1 TH/1 F low-pass and injects +0.5/−0.5 V AC. Actual differential excitation remains 1 V with common-mode residual at most 1 uV.
 
 Both decks sweep 1 Hz–1 GHz at 200 points/decade. AC describes the linearization of the verified DC point, not proof of a dynamically stable equilibrium. An explicit rshunt=1e14 (100 TOhm) numerical shunt to ground at each node regularizes otherwise floating extraction/series-capacitor nodes; source and candidate use the identical setting. Sensitivity is checked with 1 POhm. Supply startup is not simulated: transient starts from the DC operating point, and the no-disturbance interval tests whether that point persists. Use the default sparse solver with pivtol=1e-18, below the numerical shunt conductance, and the tolerances declared in the decks.
 
@@ -22,36 +22,23 @@ Both decks sweep 1 Hz–1 GHz at 200 points/decade. AC describes the linearizati
 
 Submit a native SG13G2 GDS with top cell `amp_035_fan_chopper_cmfb_dual`, at most 67108864 bytes, within 20000 × 2000 um. Native main and maximal DRC, named-interface LVS and geometry must pass without marker waivers. Keep every MOS, body connection and passive path. Unit multiplicities and the declared passive series/parallel realization are fixed in the materials.
 
-The functional footprint includes active, gate, contact, metal, via, MIM and complete routing shapes; well, text, annotations and nonfunctional markers alone do not define it. The runtime task supplies the exact layer set. Candidate GDS drives native connectivity extraction and distributed wire resistance/ground capacitance extraction, then the same native MOS/MIM/high-poly simulation models used by the source. This nominal MOS/R/C boundary does not assert RF/coupling extraction, PVT, mismatch, noise or manufacturing signoff.
+Functional area includes active regions, gates, contacts, metals, vias, MIM devices and all routing. Wells, text, annotations and nonfunctional markers cannot independently define functional area. Runtime task metadata supplies the exact layer set. After native connectivity and distributed wire-resistance/ground-capacitance extraction, simulate the candidate GDS with the same native MOS/MIM/high-poly models as the source. This task's nominal MOS/R/C scope excludes RF/coupling extraction, PVT, mismatch, noise and manufacturing signoff.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-Every declared simulation must complete with finite measurements and complete raw records. Transient means use full-precision cumulative integration with interpolated endpoint corrections; incomplete windows are errors. PP denotes the full finite-window range, including any oscillation or slow drift. No phase margin, loop gain, settling time or periodic steady state is claimed.
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+Complete every declared simulation, with finite measurements and complete raw records. Transient means use full-precision cumulative integration and interpolated endpoint corrections; incomplete windows are errors. PP is the range over the entire finite window, including oscillation or slow drift. It does not establish phase margin, loop gain, settling time or periodic steady state.
+
+`cm_recovery_error_v`, `s1_recovery_error_v`, `dm_high_error_v`, `dm_return_error_v`, `cm_quiet_pp_v`, `cm_late_pp_v`, `cm_kick_v`, `s1_quiet_pp_v`, `s1_late_pp_v`, `s1_kick_v` use `saturating_ratio`: q = 2(b+s)/(b+x+2s), where x is candidate error, b is paired source error and s is the positive scale below. Source equivalence gives q=1; improvement approaches the upper limit 2 with diminishing returns. s retains the declared units and numeric-floor meaning; normalize each condition before taking the worst quality, and apply other rules as declared.
 
 | Metric | Unit | Definition | Quality role / functional domain |
 | --- | --- | --- | --- |
@@ -62,10 +49,10 @@ Every declared simulation must complete with finite measurements and complete ra
 | `cm_input_cm_v` | V | avg cm, 85–89 us | bias; target |
 | `cm_stage_ref_v` | V | avg cm, 120–124 us | bias; target |
 | `cm_late_v` | V | avg cm, 145–149 us | bias; target |
-| `cm_quiet_pp_v` | V | pp cm, 5–9 us | response; ratio; 0 ≤ value |
-| `cm_late_pp_v` | V | pp cm, 145–149 us | response; ratio; 0 ≤ value |
-| `cm_kick_v` | V | max cm_delta, 30–33 us | response; ratio; 0 ≤ value |
-| `cm_recovery_error_v` | V | avg cm_delta, 45–49 us | response; ratio; 0 ≤ value |
+| `cm_quiet_pp_v` | V | pp cm, 5–9 us | response; saturating_ratio; 0 ≤ value |
+| `cm_late_pp_v` | V | pp cm, 145–149 us | response; saturating_ratio; 0 ≤ value |
+| `cm_kick_v` | V | max cm_delta, 30–33 us | response; saturating_ratio; 0 ≤ value |
+| `cm_recovery_error_v` | V | avg cm_delta, 45–49 us | response; saturating_ratio; 0 ≤ value |
 | `s1_quiet_v` | V | avg s1, 5–9 us | bias; target |
 | `s1_pre_kick_v` | V | avg s1, 28–29 us | bias; target |
 | `s1_recovery_v` | V | avg s1, 45–49 us | bias; target |
@@ -73,12 +60,12 @@ Every declared simulation must complete with finite measurements and complete ra
 | `s1_input_cm_v` | V | avg s1, 85–89 us | bias; target |
 | `s1_stage_ref_v` | V | avg s1, 120–124 us | bias; target |
 | `s1_late_v` | V | avg s1, 145–149 us | bias; target |
-| `s1_quiet_pp_v` | V | pp s1, 5–9 us | response; ratio; 0 ≤ value |
-| `s1_late_pp_v` | V | pp s1, 145–149 us | response; ratio; 0 ≤ value |
-| `s1_kick_v` | V | max s1_delta, 30–33 us | response; ratio; 0 ≤ value |
-| `s1_recovery_error_v` | V | avg s1_delta, 45–49 us | response; ratio; 0 ≤ value |
-| `dm_high_error_v` | V | avg dmerror, 18–19 us | response; ratio; 0 ≤ value |
-| `dm_return_error_v` | V | avg dmerror, 25–29 us | response; ratio; 0 ≤ value |
+| `s1_quiet_pp_v` | V | pp s1, 5–9 us | response; saturating_ratio; 0 ≤ value |
+| `s1_late_pp_v` | V | pp s1, 145–149 us | response; saturating_ratio; 0 ≤ value |
+| `s1_kick_v` | V | max s1_delta, 30–33 us | response; saturating_ratio; 0 ≤ value |
+| `s1_recovery_error_v` | V | avg s1_delta, 45–49 us | response; saturating_ratio; 0 ≤ value |
+| `dm_high_error_v` | V | avg dmerror, 18–19 us | response; saturating_ratio; 0 ≤ value |
+| `dm_return_error_v` | V | avg dmerror, 25–29 us | response; saturating_ratio; 0 ≤ value |
 | `mean_power_w` | W | Time-weighted delivered power over the declared transient window | supply; ratio; 0 ≤ value |
 | `cm_bias_v` | V | DC cm_bias_v | bias; target |
 | `s1_bias_v` | V | DC s1_bias_v | bias; target |
@@ -90,12 +77,14 @@ Every declared simulation must complete with finite measurements and complete ra
 | `fixture_cm_max` | V | Fixture validity fixture_cm_max | diagnostic; unscored; 0 ≤ value ≤ 1e-06 |
 | `dc_feedback_error_v` | V | Fixture validity dc_feedback_error_v | diagnostic; unscored; 0 ≤ value ≤ 1e-06 |
 
-`cm` is the output mean and `s1` is the first-stage mean. Quiet/pre-kick/recovery/reference/input-CM/stage-reference/late windows are 5–9, 28–29, 45–49, 60–64, 85–89, 120–124 and 145–149 us. Recovery is relative to each run’s pre-kick mean; it is not a claim of asymptotic settling. All window values are evaluated for both zero-stimulus and disturbed conditions.
+`cm` is the output mean and `s1` the first-stage mean. Quiet/pre-disturbance/recovery/reference/input-common-mode/stage-reference/late windows are 5–9, 28–29, 45–49, 60–64, 85–89, 120–124, 145–149 us, respectively. Recovery is relative to the mean before the current disturbance and does not prove asymptotic settling. Every window evaluates both zero-excitation and disturbance conditions.
 
 Performance is continuously paired with the independently simulated source under exactly the same conditions. Gain quality is 10^((candidate−source)/20); target quality is 1/(1+abs(candidate−source)/scale); inverse-ratio quality is (source+floor)/(candidate+floor). Area quality is Q = 361466.3 um2 / functional area. The bias scale is 1.2 V; closed-response scale is 6 dB (factor two in amplitude). Error/range floors are 0.1 mV for differential error (1% of the 10 mV step) and 1 mV for common-mode excursions; power floor is 1 pW. Physical/domain and fixture-validity gates are not upstream product targets.
 
 The compact-area anchor sums m*((W+2.4)*(L+2.4)+3.2^2) um2 for MOS, 1.2*C/(1.5 fF/um2) for physical capacitor envelopes, and 2*R/(1360 Ohm) um2 for resistor envelopes, then adds 50% global routing allowance. It is an engineering estimate independent of the reference GDS. Coefficient 9 reflects two interacting transistor CM loops, high-impedance sensing and large physical passive networks.
 
+### Measurement validity
+Absolute errors, excursions and peak-to-peak ranges must be nonnegative. Net supply/bias consumption must be nonnegative for the powered amplifier. The AC fixture common-mode residue and DC feedback error must each remain within 1 uV so that the declared differential excitation is actually measured. These measurement-validity requirements have explicit rationales in `case.toml`; the scored response, stability observations and power have no additional upper performance rejection budgets. Missing or unusable measurements remain evaluation errors.
 
 ### Score weights
 
@@ -141,4 +130,4 @@ One/two-loop CMFB amplifier assemblies: output common-mode dynamics 27%; stage-1
 
 Solve budget: **8 hours**.
 
-Use the reviewed SG13G2 resources and ngspice 45 tool environment. The runtime `/protocol/task.json` publishes frozen inputs, requirements and tool bindings. Submit `/workspace/output/final.gds` explicitly through the session submission tool; writing the file alone does not submit it. The evaluation executes native checks, candidate-derived RC and independent paired source/post-layout simulations. The reference GDS, maintainer README and development checkout are not solver inputs.
+Use the reviewed SG13G2 resources and ngspice 45 environment. Frozen inputs, requirements and tool bindings are in `/protocol/task.json`. Explicitly submit `/workspace/output/final.gds` through the session submission tool; file generation alone is not submission. Evaluation performs native checks, candidate RC extraction and independent paired source/post-layout simulation. Reference GDS, maintainer README and development sources are not solver inputs.

tasks/ihp-sg13g2/analog-db/cases/buf_001_super_follower/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.buf_001_super_follower"
 title = "MIM-Compensated Local-Feedback Source Follower"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "b3ac9f88b7688be745644d076dcfd1bfe4adb1d271a62479c082c4afbb5bad74"
+sha256 = "121c4b7a69a5aa6704c6811c366d5f9c1f3d30c1f77d02a499e5d76491a73658"
 
 [[assets]]
 path = "reference/buf_001_super_follower.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-buf_001_super_follower-nominal-rc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "be3bf33938c52ab4389bac26ed57f0f8b3f6635c19f81fe94cea6e20368141ca"
+sha256 = "a03f8657ce08955ec3f96a8e89e870eeff88262a0ee2c2e643cbf18d4a0110eb"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "2f617c485f1bd1d94d47a1fc21c6c1e815fb9f4a4278ee93c2a1eb80b80a4404"
 subcircuit = "buf_001_super_follower"
+sha256 = "2f617c485f1bd1d94d47a1fc21c6c1e815fb9f4a4278ee93c2a1eb80b80a4404"
 
 [task.inputs.performance]
 path = "materials/testbench.spice"
@@ -473,8 +473,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.5
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.5
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "bias_v"
@@ -495,8 +498,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.5
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.5
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "power_w"
@@ -516,9 +522,12 @@ baseline = [
     "source_condition_2:power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "gain_vv"
 category = "performance"
@@ -557,7 +566,10 @@ baseline = [
     "source_condition_2:bandwidth_hz",
 ]
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The observed frequency or ordered-event interval has a nonnegative measurement domain, and its required crossing must exist for a usable observation."
 
 [[task.evaluation.metrics]]
 id = "step_gain"
@@ -596,10 +608,13 @@ baseline = [
     "source_condition_1:recovery_up_v",
     "source_condition_2:recovery_up_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "recovery_down_v"
 category = "performance"
@@ -617,10 +632,13 @@ baseline = [
     "source_condition_1:recovery_down_v",
     "source_condition_2:recovery_down_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "mean_power_w"
 category = "performance"
@@ -639,14 +657,17 @@ baseline = [
     "source_condition_2:mean_power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [task.evaluation.pre_layout]
-source_report_sha256 = "e804bb71207187cb10f425c68287bc8c549d5afc61d4c6c7a0033e91a4f82811"
+source_report_sha256 = "8e39d49a2dcdcdc99680e54e583399ea81bbe64658604f1acb3eae17e0cffcc7"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:6562558774d43c085a289bbba696c55959eb8051a0996f96633451fbeb9c652d\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"e60d9c0a3bb90c239c100721134cdd44522e74410082c421abab71922cb61c14\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"dce84f0cb44c7192511c807348bb3852682b1b4ec71ee94055876cb79ccbbdb1\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -720,6 +741,11 @@ unit = "V"
 value = 0.833601
 unit = "V/V"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+op = "21970866f01f3a964132e086c745958da737c9a39c9c4f47a11bb06662d4a215"
+ac = "750273ac9e8e5e6acec71166e1b719908477a46dca9a2d6f6f49f0e4e8fd963b"
+transient = "60f48cbd5f9e759b4681394e0e472b1131898abd4a6b3f4f2f9f2db530fba65c"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -792,6 +818,11 @@ unit = "V"
 value = 0.833601
 unit = "V/V"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+op = "21970866f01f3a964132e086c745958da737c9a39c9c4f47a11bb06662d4a215"
+ac = "1153ba82dcc78d7f14f565f8ddbb4222e11b9f1d83b0cf9ac817b3073707d316"
+transient = "6a1bbecc64daa9522d6ab2de3bd69f1efa9676648ba94678a3c90be78a80a10e"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -864,6 +895,11 @@ unit = "V"
 value = 0.833601
 unit = "V/V"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+op = "21970866f01f3a964132e086c745958da737c9a39c9c4f47a11bb06662d4a215"
+ac = "662fab4725be2fb2d24f9b99708355c6a71bfeb2745416913b2fc36c36441bab"
+transient = "1d460639dd2bf53bb2f0fea69f9d840b44a8ac0fde1de2231d435e42cf87d73f"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -876,7 +912,7 @@ unit = "V/V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -887,7 +923,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -900,7 +936,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -913,7 +949,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -925,7 +961,7 @@ timeout_seconds = 600
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -935,7 +971,10 @@ type = "ngspice-docker"
 support = "analog-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-models"
 timeout_seconds = 600
 

tasks/ihp-sg13g2/analog-db/cases/buf_001_super_follower/problem.md

@@ -9,7 +9,7 @@ Implement `buf_001_super_follower` in ihp-sg13g2 and submit self-contained GDS.
 `materials/circuit.cdl` is the authoritative physical circuit. `materials/circuit.spice` is its equivalent simulator model-call representation. `materials/testbench.spice` defines measurements, and this problem is the description input.
 Ordered ports: `vdd vout vin ibias vss`. In order: Supply, output, signal input, reference-current input, and return.
 
-Preserve connectivity, W/L/m, passive geometry and body connections. Provide physical contacts. Placement and routing are free; splitting and source/drain interchange are allowed only under the declared LVS equivalences. No statistical matching or common-centroid constraint is scored. Ideal external sources, loads and fixtures belong to the testbench, not the DUT.
+Preserve connectivity, W/L/m, passive geometry and body terminals, with physical contacts. Placement and routing are free; splitting and source/drain exchange must satisfy the declared LVS equivalence rules. Statistical matching and common-centroid placement are unscored. Ideal external sources, loads and test apparatus belong to the testbench, outside the DUT.
 
 ## Operating Conditions
 
@@ -25,34 +25,21 @@ Every scored simulation consumes the submitted GDS-derived distributed wiring RC
 
 ## Electrical Requirements and Scoring
 
-All 3 operating conditions must complete. Every finite observation must meet its inclusive band; aggregation cannot hide a failing condition. Missing measurements/crossings or incomplete extraction do not establish success.
-
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-| Metric | Definition / observations | Unit | Quality rule | Functional bounds | Scale |
+All three conditions must complete, and each finite observation must satisfy its inclusive interval; aggregation cannot hide a failed condition. Missing measurements/crossings or incomplete extraction cannot establish success.
+
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+`recovery_up_v` and `recovery_down_v` use `saturating_ratio`. Candidate error x, paired source error b and the positive scale s below define q = 2(b+s)/(b+x+2s). Source-equivalent error gives q=1; decreasing error approaches the upper quality limit 2 with diminishing returns. The scale retains its declared unit and numerical-floor meaning. Normalize each operating condition before taking the worst paired quality; other metrics retain their own declared normalization and functional requirements.
+
+| Metric | Definition / observation | Unit | Quality normalization | Functional range | Scale |
 | --- | --- | --- | --- | --- | --- |
 | `output_v` | DC output/control voltage | V | target / target | 0 … 1.5 | 1.5 |
 | `bias_v` | DC V(ibias) | V | target / target | 0 … 1.5 | 1.5 |
@@ -60,15 +47,13 @@ can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
 | `gain_vv` | Magnitude V(vout) at 10 Hz with unit AC input | V/V | target / target | −∞ … +∞ | 1.0 |
 | `bandwidth_hz` | First falling 3 dB crossing relative to the 10 Hz gain | Hz | maximize / ratio | 0 … +∞ | — |
 | `step_gain` | (Vout at 2.5 us - Vout at 0.5 us) / 0.1 V | V/V | target / target | −∞ … +∞ | 1.0 |
-| `recovery_up_v` | Maximum absolute recovered error over the upward-step window | V | minimize / ratio | 0 … +∞ | 1e-06 |
-| `recovery_down_v` | Maximum absolute recovered error over the downward-step window | V | minimize / ratio | 0 … +∞ | 1e-06 |
+| `recovery_up_v` | Maximum absolute recovered error over the upward-step window | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 |
+| `recovery_down_v` | Maximum absolute recovered error over the downward-step window | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 |
 | `mean_power_w` | Time-average -V(vdd)*I(VDD) over the complete transient | W | minimize / ratio | 0 … +∞ | 1e-12 |
 
-Area reference: **1242.88 um2**. 20 expanded device instances; sum of device/contact envelopes 782.8540 um2, per-side envelope allowance 0.6 um, 50% routing allowance and total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across two opposite sides; the envelope sum is displayed rounded to four decimals. MOS/passive envelopes use declared W/L (or resistor dimensions) and multiplicity; explicit tap areas and HBT emitter/contact envelopes are included. This is a frozen engineering estimate, not a foundry minimum or a feasibility claim.
-
-The capability coefficient remains **5**; it is independent of
-the reference-relative task score.
+Area reference: **1242.88 um2**. The expanded circuit has 20 device instances, a sum of device/contact envelopes 782.8540 um2, a one-sided envelope margin of 0.6 um, a routing allowance of 50%, and a total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across both sides, and the envelope sum is displayed to four decimal places. MOS/passive envelopes use W/L (or resistor dimensions) and multiplicity, including explicit contacts and HBT emitter/contact envelopes. This is a frozen engineering estimate, not a process minimum or a proven achievable area.
 
+The capability coefficient is **5**, independent of this task's reference-normalized score.
 
 ### Score weights
 
@@ -91,4 +76,4 @@ Super source follower: loaded recovery 36%; source-follower transfer 27%; bandwi
 
 Solve budget: **3 hours**.
 
-Use reviewed resources from `/protocol/resources.json`. KLayout checks, Magic extracts RC, and ngspice simulates. Frozen constraints and requirements are in `/protocol/task.json`; `/protocol/harness.json` describes the harness. If available, use the published `process-feedback` helper for interim checks. Write `/workspace/output/final.gds` and explicitly submit using `python -I /protocol/submit.py`.
+Use the reviewed resources in `/protocol/resources.json`: KLayout for checks, Magic for RC extraction and ngspice for simulation. Frozen constraints and requirements are in `/protocol/task.json`; the runtime protocol is in `/protocol/harness.json`. If `process-feedback` is provided, its public helpers may be used for intermediate checks. Write `/workspace/output/final.gds`, then run `python -I /protocol/submit.py` to submit explicitly.

tasks/ihp-sg13g2/analog-db/cases/cmfb_002_5t_pmos_input/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.cmfb_002_5t_pmos_input"
 title = "PMOS-Input Common-Mode Detector and Controller"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "5864ed924ed257fc4b047bec06d23ed2ed45897e47fd73abcc225e3c5b42861e"
+sha256 = "7f684f8db009f30cd8fc2cae2fa21a851034083c48a4ce026b3d0a3b3f8722f8"
 
 [[assets]]
 path = "reference/cmfb_002_5t_pmos_input.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-mos-rc-tt"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "56e55e830880cc05a31b26b41b60791c064c904dcb7e98c88c1cb169a5b6dbbe"
+sha256 = "f577f3d43336aba3620626f8f8b70d366bcbdba620ec0528323262e8f13fd33c"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "9d0cf10dd16c7a3e2e929dc7fe72dbfb0dd5f4d53f52574e92414e293c903d45"
 subcircuit = "cmfb_002_5t_pmos_input"
+sha256 = "9d0cf10dd16c7a3e2e929dc7fe72dbfb0dd5f4d53f52574e92414e293c903d45"
 
 [task.inputs.simulation]
 path = "materials/circuit.spice"
@@ -44,7 +44,7 @@ sha256 = "c2f813d8f9a239ef66cb9342df6818496a08dcf86bce12ff210770ac2ac811ef"
 [task.inputs.performance]
 path = "materials/testbench.spice"
 format = "spice"
-sha256 = "6c083bab7eed8d17118dbb5dd5cd7418675e74e47f26859d8924c4ef58666595"
+sha256 = "713b8af7eb91ced63acb01b10267bedc66c3f1d8f2827a3e98084948c18d948b"
 
 [task.constraints]
 quality = [
@@ -619,8 +619,6 @@ direction = "target"
 dimension = "bias"
 normalization = "target"
 scale = 1.5
-lower = 0
-upper = 1.5
 category = "performance"
 observations = [
     "condition_0:output_v",
@@ -639,6 +637,11 @@ baseline = [
     "source_condition_5:output_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+upper = 1.5
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
+
 [[task.evaluation.metrics]]
 id = "power_w"
 unit = "W"
@@ -647,7 +650,6 @@ direction = "minimize"
 dimension = "supply"
 normalization = "ratio"
 scale = 1e-12
-lower = 0
 category = "performance"
 observations = [
     "condition_0:power_w",
@@ -666,6 +668,10 @@ baseline = [
     "source_condition_5:power_w",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "signed_gain"
 unit = "1"
@@ -776,9 +782,8 @@ unit = "V"
 aggregation = "max"
 direction = "minimize"
 dimension = "response"
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 0.0001
-lower = 0
 category = "performance"
 observations = [
     "condition_0:ripple_v",
@@ -797,6 +802,10 @@ baseline = [
     "source_condition_5:ripple_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "dc_cm_slope"
 unit = "1"
@@ -805,7 +814,6 @@ direction = "target"
 normalization = "target"
 scale = 1
 aggregation = "max"
-lower = 0
 category = "performance"
 observations = [
     "condition_0:dc_cm_slope",
@@ -824,6 +832,10 @@ baseline = [
     "source_condition_5:dc_cm_slope",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "Increasing the sensed common-mode input must produce the declared nonnegative control-output response, preserving the controller polarity."
+
 [[task.evaluation.metrics]]
 id = "dc_ref_slope"
 unit = "1"
@@ -832,7 +844,6 @@ direction = "target"
 normalization = "target"
 scale = 1
 aggregation = "max"
-upper = 0
 category = "performance"
 observations = [
     "condition_0:dc_ref_slope",
@@ -851,11 +862,15 @@ baseline = [
     "source_condition_5:dc_ref_slope",
 ]
 
+[task.evaluation.metrics.requirement]
+upper = 0
+rationale = "Increasing the reference must produce the declared nonpositive control-output response, opposite to the sensed-input response."
+
 [task.evaluation.pre_layout]
-source_report_sha256 = "24ef88283ce7b870974841ee587ce0f40de20774c208cabadf30c592b0c258d4"
+source_report_sha256 = "b7147afcc835b6bdd2bfc5d280a947c5251766902acfed5e446ecb7af99cb465"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:34eff92f7ffca7b8b010bcded394c4625c14143c757fda519e873b7ef8e87dc5\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a2f9354b5879402806e49b60afcd4d4802bd2a168f62658c38447df758f38102\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -899,7 +914,7 @@ cm_dc = "cm_dc.raw"
 ref_dc = "ref_dc.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.input_sha256]
-deck = "6c083bab7eed8d17118dbb5dd5cd7418675e74e47f26859d8924c4ef58666595"
+deck = "713b8af7eb91ced63acb01b10267bedc66c3f1d8f2827a3e98084948c18d948b"
 dut = "c2f813d8f9a239ef66cb9342df6818496a08dcf86bce12ff210770ac2ac811ef"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.dc_cm_slope]
@@ -938,6 +953,13 @@ unit = "1"
 value = 0.01655849999999998
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+op = "99d839ae57201ca22f2db9d672d0df2799a0396f7c6cf5dffeccf4db76a96f01"
+ac = "095bfc09d6da36bf98f2ad8a6f25ca9efea0bc21b197fae183d46f12fbec29e9"
+transient = "1cddcb2b8c7b836131251853d7f56e9852f7b9e3a5e75c64716a241f511634c1"
+cm_dc = "68c649ba132fd2ff826f9419333dab5c66cc6d3b80698f3baf4a3795540e157b"
+ref_dc = "c126a824a83f5fcf6fc1d22b46caac01b3bee8b397c6c9c30027e84a7a283a53"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -980,7 +1002,7 @@ cm_dc = "cm_dc.raw"
 ref_dc = "ref_dc.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.input_sha256]
-deck = "6c083bab7eed8d17118dbb5dd5cd7418675e74e47f26859d8924c4ef58666595"
+deck = "713b8af7eb91ced63acb01b10267bedc66c3f1d8f2827a3e98084948c18d948b"
 dut = "c2f813d8f9a239ef66cb9342df6818496a08dcf86bce12ff210770ac2ac811ef"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.dc_cm_slope]
@@ -1019,6 +1041,13 @@ unit = "1"
 value = -0.0163921
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+op = "99d839ae57201ca22f2db9d672d0df2799a0396f7c6cf5dffeccf4db76a96f01"
+ac = "06d387917a51c4384e203875f4a11df9aaa80c7e0b5b518093fc8c05b32f97cb"
+transient = "3611885182d95df41cada2ab78e5bc3cd76274f47b9da1a76cfc628df6842de1"
+cm_dc = "68c649ba132fd2ff826f9419333dab5c66cc6d3b80698f3baf4a3795540e157b"
+ref_dc = "c126a824a83f5fcf6fc1d22b46caac01b3bee8b397c6c9c30027e84a7a283a53"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -1061,7 +1090,7 @@ cm_dc = "cm_dc.raw"
 ref_dc = "ref_dc.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.input_sha256]
-deck = "6c083bab7eed8d17118dbb5dd5cd7418675e74e47f26859d8924c4ef58666595"
+deck = "713b8af7eb91ced63acb01b10267bedc66c3f1d8f2827a3e98084948c18d948b"
 dut = "c2f813d8f9a239ef66cb9342df6818496a08dcf86bce12ff210770ac2ac811ef"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.dc_cm_slope]
@@ -1100,6 +1129,13 @@ unit = "1"
 value = -1.00000000002876e-07
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+op = "99d839ae57201ca22f2db9d672d0df2799a0396f7c6cf5dffeccf4db76a96f01"
+ac = "690379616be0a0f327f70b94b73b99d9cb6a4aea2d1fb1bde680d502472bc10f"
+transient = "b8a0c1173c0270f0200b833fcf951b93f824eb74247e5ad066b829acb710c368"
+cm_dc = "68c649ba132fd2ff826f9419333dab5c66cc6d3b80698f3baf4a3795540e157b"
+ref_dc = "c126a824a83f5fcf6fc1d22b46caac01b3bee8b397c6c9c30027e84a7a283a53"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -1142,7 +1178,7 @@ cm_dc = "cm_dc.raw"
 ref_dc = "ref_dc.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.input_sha256]
-deck = "6c083bab7eed8d17118dbb5dd5cd7418675e74e47f26859d8924c4ef58666595"
+deck = "713b8af7eb91ced63acb01b10267bedc66c3f1d8f2827a3e98084948c18d948b"
 dut = "c2f813d8f9a239ef66cb9342df6818496a08dcf86bce12ff210770ac2ac811ef"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.dc_cm_slope]
@@ -1181,6 +1217,13 @@ unit = "1"
 value = 0.01759659999999996
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+op = "0253be93b0aecbe0f691a586879c6fe66a25ace1837bb8b84d0d31080d318cba"
+ac = "5be71484d554a543953df878d957b24815a47e55d202e28508ec3b711737e16b"
+transient = "5ef2fc31c81a36affe4ef596836caa4c12dcc92ed8d50906a1fc724575a4128b"
+cm_dc = "9312b6e4e52c510d34bc9a20576204e2e805ce0e75faffa6c50387440805edd1"
+ref_dc = "d215b9dbb9c3102ac9f98cf6b733f4fe89641f3d012e85af2e2dfeb027b1799e"
+
 [task.evaluation.pre_layout.jobs.source_condition_4]
 operation = "circuit.simulate"
 
@@ -1223,7 +1266,7 @@ cm_dc = "cm_dc.raw"
 ref_dc = "ref_dc.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_4.input_sha256]
-deck = "6c083bab7eed8d17118dbb5dd5cd7418675e74e47f26859d8924c4ef58666595"
+deck = "713b8af7eb91ced63acb01b10267bedc66c3f1d8f2827a3e98084948c18d948b"
 dut = "c2f813d8f9a239ef66cb9342df6818496a08dcf86bce12ff210770ac2ac811ef"
 
 [task.evaluation.pre_layout.jobs.source_condition_4.measurements.dc_cm_slope]
@@ -1262,6 +1305,13 @@ unit = "1"
 value = -0.0174032
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_4.output_sha256]
+op = "0253be93b0aecbe0f691a586879c6fe66a25ace1837bb8b84d0d31080d318cba"
+ac = "511ed811b420ae412f780a60a9751a27407013367ea4ad183c3bf506e9d7c6ec"
+transient = "9c746c68453cca78083a51d4055bfd314eff1238f88d564f8f9ad53b1a2b89ac"
+cm_dc = "9312b6e4e52c510d34bc9a20576204e2e805ce0e75faffa6c50387440805edd1"
+ref_dc = "d215b9dbb9c3102ac9f98cf6b733f4fe89641f3d012e85af2e2dfeb027b1799e"
+
 [task.evaluation.pre_layout.jobs.source_condition_5]
 operation = "circuit.simulate"
 
@@ -1304,7 +1354,7 @@ cm_dc = "cm_dc.raw"
 ref_dc = "ref_dc.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_5.input_sha256]
-deck = "6c083bab7eed8d17118dbb5dd5cd7418675e74e47f26859d8924c4ef58666595"
+deck = "713b8af7eb91ced63acb01b10267bedc66c3f1d8f2827a3e98084948c18d948b"
 dut = "c2f813d8f9a239ef66cb9342df6818496a08dcf86bce12ff210770ac2ac811ef"
 
 [task.evaluation.pre_layout.jobs.source_condition_5.measurements.dc_cm_slope]
@@ -1343,6 +1393,13 @@ unit = "1"
 value = -1.00000000002876e-07
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_5.output_sha256]
+op = "0253be93b0aecbe0f691a586879c6fe66a25ace1837bb8b84d0d31080d318cba"
+ac = "952c3cd4f1e78238c62cb582f792c8ff82d9ea29e36f6ada9f85c5bbd086d73e"
+transient = "9070b081b97086fd7f82990bf12bb818b7e11e3450f1bff42d0eb0ffef0b4858"
+cm_dc = "9312b6e4e52c510d34bc9a20576204e2e805ce0e75faffa6c50387440805edd1"
+ref_dc = "d215b9dbb9c3102ac9f98cf6b733f4fe89641f3d012e85af2e2dfeb027b1799e"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -1355,7 +1412,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -1366,7 +1423,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/analog-db-klayout"
 profile = "drc-upstream.json"
@@ -1379,7 +1436,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/analog-db-klayout"
 profile = "lvs-upstream.json"
@@ -1392,7 +1449,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/analog-db-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -1404,7 +1461,7 @@ timeout_seconds = 600
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -1414,7 +1471,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-db-analog-models"
 timeout_seconds = 600
 

tasks/ihp-sg13g2/analog-db/cases/cmfb_002_5t_pmos_input/materials/testbench.spice

@@ -26,6 +26,7 @@ write op.raw all
 let center=v(cm)
 let lower=center-.001
 let upper=center+.001
+save i(vdd) v(cm) v(vcmfb) v(vdd) v(vinp) v(vinn)
 ac dec 100 1 100Meg
 let signed=real(v(vcmfb))
 let response=mag(v(vcmfb))

tasks/ihp-sg13g2/analog-db/cases/cmfb_002_5t_pmos_input/problem.md

@@ -12,46 +12,33 @@ Implement `cmfb_002_5t_pmos_input` with the complete fixed topology and minimize
 
 1.5 V supply; 0.5 and 0.7 V input common mode and equal reference. Output has 1 pF to ground and 10 Mohm to the common-mode source. At each bias, separate unit AC common-mode, reference and balanced differential excitations cover 1 Hz–100 MHz. Verify zero differential component in common-mode excitation and zero common-mode component in differential excitation. Centered 2 mV DC sweeps separately vary the common-mode or reference source. Separate 1 mV common-mode/reference or 100 mV differential steps start at 20 us, have 100 ns edges and last 40 us. The 100 us transient starts at DC, maximum step 20 ns. Rail power includes both diode bias devices, but excludes fixture driver losses. No external plant/servo, solver shunt or forced state.
 
-All source/candidate jobs share exactly the same fixtures, parameters, nominal TT models and 27 C temperature. Testbench control blocks and frozen runtime parameters define all stimulus and measurement details. Source simulation is independent of the reference GDS. No paper or data-sheet performance number is an acceptance threshold.
+Source and candidate jobs use exactly the same test apparatus, parameters, nominal TT models and 27 C temperature. Stimuli and measurements follow the testbench control block and frozen runtime parameters. Source simulation is independent of reference GDS; paper or datasheet performance is not an acceptance bound.
 
 ## Physical Requirements
 
 Submit a valid GDSII containing top cell `cmfb_002_5t_pmos_input`, at most 10485760 bytes. Pass the pinned native DRC profile, named-interface LVS and functional outline checks. Maximum functional width/height are 5000/1000 um. The complete functional layer set is `[[1, 0], [3, 0], [5, 0], [6, 0], [7, 0], [8, 0], [10, 0], [11, 0], [13, 0], [14, 0], [19, 0], [24, 0], [26, 0], [28, 0], [29, 0], [30, 0], [31, 0], [32, 0], [33, 0], [35, 0], [36, 0], [40, 0], [44, 0], [46, 0], [49, 0], [50, 0], [51, 0], [52, 0], [53, 0], [55, 0], [58, 0], [66, 0], [67, 0], [90, 0], [101, 0], [111, 0], [125, 0], [126, 0], [128, 0], [129, 0], [133, 0], [134, 0], [139, 0], [152, 0]]` (layer/datatype pairs); text/annotation geometry is excluded. There are no case-local DRC waivers. Geometry bounds are generous task/resource limits, not an area score anchor.
 
-Post-layout simulation must consume native candidate-GDS-derived distributed wire RC, retaining every physical MOS, resistor and capacitor. Native LVS alone does not substitute for PEX. Magic uses ideal well/substrate tap connections; source simulation retains native finite tap models. This boundary does not establish distributed substrate resistance or substrate-noise accuracy.
+Post-layout simulation uses distributed wire RC from native candidate GDS and retains physical MOS, resistors and capacitors; LVS cannot replace PEX. Magic idealizes well/substrate contacts while source simulation retains finite native contact models; no distributed substrate resistance or noise accuracy is claimed.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
 
 Coefficient 4 covers a compact gain/bias/passive network. Nonnegative common-mode and nonpositive reference DC slopes are functional sign-domain constraints. Both include zero and do not establish a minimum response magnitude. Reported response/ripple windows do not certify a closed-loop CM regulator or upstream optimization claims.
 
-Every required condition must yield finite, valid measurements and pass the functional bounds below. Missing or invalid extraction/measurements are evaluation errors, not low performance scores.
+Every required condition must produce finite, valid measurements and pass the functional bounds below. Missing or invalid extraction/measurements are evaluation errors and cannot be replaced by a low performance score.
 
-| Metric | Unit | Definition | Dimension / normalization | Functional bounds |
+`ripple_v` uses `saturating_ratio`: q = 2(b+s)/(b+x+2s), where x is candidate error, b is paired source error and s is the positive scale below. Source equivalence gives q=1; improvement approaches the upper limit 2 with diminishing returns. The scale retains its declared unit and numerical-floor meaning. Normalize each condition before taking the worst quality; other rules follow their declarations.
+
+| Metric | Unit | Definition | Dimension / normalization | Functional range |
 | --- | --- | --- | --- | --- |
 | `output_v` | V | Natural loaded output with zero CM error | bias / target; scale 1.5 | lower=0; upper=1.5 |
 | `power_w` | W | Rail power including dual-diode bias | supply / ratio; scale 1e-12 | lower=0 |
@@ -59,7 +46,7 @@ Every required condition must yield finite, valid measurements and pass the func
 | `gain_1khz` | 1 | Magnitude at 1 kHz, selected excitation | response / target; scale 1 | Finite measurement |
 | `gain_100khz` | 1 | Magnitude at 100 kHz, selected excitation | response / target; scale 1 | Finite measurement |
 | `step_response_v` | V | Mean response 50–60 us minus 10–20 us | response / target; scale 0.01 | Finite measurement |
-| `ripple_v` | V | Recovery window output variation | response / ratio; scale 0.0001 | lower=0 |
+| `ripple_v` | V | Recovery window output variation | response / saturating_ratio; scale 0.0001 | lower=0 |
 | `dc_cm_slope` | 1 | Centered 2 mV DC output slope for dc_cm_slope | response / target; scale 1 | lower=0 |
 | `dc_ref_slope` | 1 | Centered 2 mV DC output slope for dc_ref_slope | response / target; scale 1 | upper=0 |
 
@@ -67,7 +54,6 @@ Target normalization preserves the source operating point/transfer using its dec
 
 The area anchor is **10500 um²**: twice the sum of `(W + 6 um) × (L + 8 um)` over every expanded MOS and physical passive unit (15 units, sum 5245.926900 um²), rounded upward to 100 um². Contact/well/tap/isolation envelopes are included in the 6/8 um allowances; the factor two allows routing. This is an engineering compact-footprint estimate, independent of measured witness area, not a foundry minimum or demonstrated optimum. Task coefficient: **4**.
 
-
 ### Score weights
 
 Common-mode sensing/controllers: signed transfer 45%; ripple 19.3%; output bias 6.43%; power 19.3%; area 10%. Each objective's weight is divided equally among its metrics.
@@ -89,4 +75,4 @@ Common-mode sensing/controllers: signed transfer 45%; ripple 19.3%; output bias
 
 Solve budget: **8 hours**.
 
-Use the runtime task and reviewed PDK resource bundle for the declared native checks, extraction and ngspice measurements. Write `output/final.gds` with the required top cell, then explicitly submit its path through the session submission interface; creating a file alone is not submission. Reference GDS, qualification results and development sources are excluded from standard solver inputs.
+Use the runtime task and reviewed PDK resources to complete the declared native checks, extraction and ngspice measurements. Write the required top cell to `output/final.gds`, then explicitly submit its path through the session interface; file generation alone is not submission. Reference GDS, qualification results and development sources are not standard solver inputs.

tasks/ihp-sg13g2/analog-db/cases/cmfb_004_output_switched_cap/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.cmfb_004_output_switched_cap"
 title = "MIM Switched-Capacitor Common-Mode Sampler"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "4fbb63f12b4a4b6defd80eddfa5a063c9e109f5b8a3befdcdcb332252295d026"
+sha256 = "33b4ef591e4b812c33447c6f198332cf8db2a3dd69ba2597809643709d612f6e"
 
 [[assets]]
 path = "reference/cmfb_004_output_switched_cap.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-cmfb_004_output_switched_cap-nominal-rc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "4abd5e63d169023ccabf5d07b70e0f70a740c8fa79fb2310cdcfee5275e48692"
+sha256 = "c56e249d8d3841cdf3b5db345441dbf4eb2a995be2521ac52362c330a693b736"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "3a3ca59eef1a93dd54f0e78087fccb7e250f354833ec52950e1b0f425daef481"
 subcircuit = "cmfb_004_output_switched_cap"
+sha256 = "3a3ca59eef1a93dd54f0e78087fccb7e250f354833ec52950e1b0f425daef481"
 
 [task.inputs.performance]
 path = "materials/testbench.spice"
@@ -499,8 +499,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.5
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.5
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "sample_error_v"
@@ -523,10 +526,13 @@ baseline = [
     "source_condition_3:sample_error_v",
     "source_condition_4:sample_error_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "hold_drift_v"
 category = "performance"
@@ -548,10 +554,13 @@ baseline = [
     "source_condition_3:hold_drift_v",
     "source_condition_4:hold_drift_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "clock_power_w"
 category = "performance"
@@ -574,14 +583,17 @@ baseline = [
     "source_condition_4:clock_power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [task.evaluation.pre_layout]
-source_report_sha256 = "e9fb19ad7fdaf9d3e67fea617f7ac9bb5ef9d0f30b8ff05aaa70b025b2fe0b68"
+source_report_sha256 = "fa39a56ba7b987270610812b98df5047f5e66acc86962e797216780629dcf22b"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:6562558774d43c085a289bbba696c55959eb8051a0996f96633451fbeb9c652d\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"30ea2fc7a7da5d8deed2cf4fcdde1e7420ffe3e6913aece29d19b692ea2506ab\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"dce84f0cb44c7192511c807348bb3852682b1b4ec71ee94055876cb79ccbbdb1\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -626,6 +638,9 @@ unit = "V"
 value = 0.0001886535
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+transient = "60b5dc1c42dc716b89693a80ee738bc4bef43b2f34044f6dfeebe94baa97e6b9"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -669,6 +684,9 @@ unit = "V"
 value = 0.0001916212
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+transient = "3be4adbf9fa75c8d7c23c703c630654baae44e117cb1ae90fdd719ca2d4f679b"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -712,6 +730,9 @@ unit = "V"
 value = 2.520536e-06
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+transient = "e1ab6020a96a58d9e50923238bc766db822684d1e3a02ea826e6d26729ee5b7a"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -755,6 +776,9 @@ unit = "V"
 value = 0.0001912413
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+transient = "756b2e9bd849b4107ec8e1c8d9a1f89be171dacfd8453a7ed402743dba10ab26"
+
 [task.evaluation.pre_layout.jobs.source_condition_4]
 operation = "circuit.simulate"
 
@@ -798,6 +822,9 @@ unit = "V"
 value = 0.0001925041
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_4.output_sha256]
+transient = "2607b70a65753ae4243b935daa63858e92c70983cf58c216191ae74c2cc513ec"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -810,7 +837,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -821,7 +848,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -834,7 +861,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -847,7 +874,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -859,7 +886,7 @@ timeout_seconds = 600
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -869,7 +896,10 @@ type = "ngspice-docker"
 support = "analog-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-models"
 timeout_seconds = 600
 

tasks/ihp-sg13g2/analog-db/cases/cmfb_004_output_switched_cap/problem.md

@@ -8,11 +8,11 @@ Implement `cmfb_004_output_switched_cap` in IHP SG13G2 and submit a self-contain
 
 `materials/circuit.cdl` is the authoritative physical circuit; `materials/circuit.spice` is its equivalent simulator representation. `materials/testbench.spice` supplies measurement apparatus. This problem is the description input. The ordered ports are `vinp vinn vcmfb vcm vbias clk_phi clk_phi_not vdd vss`: sensed positive/negative inputs, sampled control output, common-mode reference, control reference, two independent clock nets, supply and return.
 
-Preserve connectivity, MOS W/L/m, capacitor dimensions and unit multiplicities, and body/tap connections. Placement and routing are free. Device splitting/combination and source/drain interchange are allowed only when accepted by the declared native LVS equivalences. No common-centroid or statistical matching requirement is scored. All specified ideal external sources, loads and measurement apparatus belong outside the DUT.
+Preserve connections, MOS W/L/m, capacitor dimensions and cell multiplicities, and body terminals/contacts. Placement and routing are free; device splitting/merging and source/drain exchange must follow declared native LVS equivalence rules. Common-centroid geometry and statistical matching are not scored; ideal external sources, loads and measurement fixtures remain outside the DUT.
 
 ## Operating Conditions
 
-Typical IHP low-voltage MOS, typical resistor and capacitor models at 27 C; VDD = 1.5 V and VSS = 0 V. Each node has the declared 1e12 ohm numerical shunt. Transient integration uses Gear order 2 with a 1 ns output and maximum step. Physical taps have finite source-model resistance; Magic treats well/substrate ties ideally. Distributed silicon substrate resistance, statistical mismatch, PVT, noise and RF/EM are outside scope.
+Use typical IHP low-voltage MOS, resistor and capacitor models at 27 C, VDD=1.5 V and VSS=0 V. Each node has a declared 1e12 ohm numerical shunt. Transient uses second-order Gear with both output and maximum steps 1 ns. Source models retain finite body-contact resistance; Magic idealizes well/substrate connections. Distributed substrate resistance, statistical mismatch, PVT, noise and RF/EM are outside coverage.
 
 Vcm = 0.75 V; Vbias = 0.6 V. Each condition starts with input common mode 0.75 V. It changes linearly over 40–40.1 us to common_v, then holds through 100 us. Inputs are common mode +/- diff_v. The five (common_v, diff_v) pairs in volts are (0.65,0), (0.65,0.1), (0.75,0.1), (0.85,0), (0.85,0.1). Phi starts high, falls after 1 us, and alternates with its complementary independent clock; rise/fall times are 2 ns, low width 5 us and period 10 us. Phi high precharges the floating capacitors; phi low couples them to the sensed inputs and output. Finite complementary slopes permit overlap. An external 1 pF loads vcmfb; stop time is 100 us. The target after repeated transfers is 0.6 V + common_v - 0.75 V.
 
@@ -20,47 +20,32 @@ Vcm = 0.75 V; Vbias = 0.6 V. Each condition starts with input common mode 0.75 V
 
 The GDS top cell is `cmfb_004_output_switched_cap`, with a 10 MiB maximum file size. Provide physical, correctly connected and accessible labeled interface metal; retain every named port. Pass IHP main and maximal DRC (density and antenna excluded for this standalone block), strict named-interface LVS and a functional bounding box no larger than 320 by 70 um. No DRC waivers are used. The functional footprint includes device, passive, implant, well and complete routing layers; excludes annotations/pin text and nonfunctional markers. Its explicit GDS layer/datatype set is `[[1, 0], [3, 0], [5, 0], [6, 0], [7, 0], [8, 0], [10, 0], [11, 0], [13, 0], [14, 0], [19, 0], [24, 0], [26, 0], [28, 0], [29, 0], [30, 0], [31, 0], [32, 0], [33, 0], [35, 0], [36, 0], [40, 0], [44, 0], [46, 0], [49, 0], [50, 0], [51, 0], [52, 0], [53, 0], [55, 0], [58, 0], [66, 0], [67, 0], [90, 0], [101, 0], [111, 0], [125, 0], [126, 0], [128, 0], [129, 0], [133, 0], [134, 0], [139, 0], [152, 0]]`. The area is the bounding-box area of those layers, not summed metal area.
 
-The candidate GDS must pass artifact, DRC, LVS and hard geometry before extraction. Magic candidate-derived distributed interconnect resistance and capacitance, with zero coupling-capacitance threshold, feed the supplied testbench. Internal MIM devices remain in candidate extraction. Source simulation alone cannot establish acceptance. This is nominal block qualification, not fabrication signoff.
+Candidate GDS first passes file, DRC, LVS and hard geometry checks; Magic then extracts distributed interconnect RC with zero coupling-capacitance threshold and retains internal MIM. The supplied testbench uses the candidate extracted circuit; source simulation cannot replace acceptance. This is nominal module verification, not manufacturing signoff.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-| Metric | Definition / observations | Unit | Quality rule | Functional bounds | Scale |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+`sample_error_v`, `hold_drift_v` use `saturating_ratio`: q = 2(b+s)/(b+x+2s), where x is candidate error, b is paired source error and s is the positive scale below. Source equivalence gives q=1; improvement approaches the upper limit 2 with diminishing returns. The scale retains its declared unit and numerical-floor meaning. Normalize each condition before taking the worst quality; other rules follow their declarations.
+
+| Metric | Definition / observation | Unit | Quality normalization | Functional range | Scale |
 | --- | --- | --- | --- | --- | --- |
 | `output_v` | V(out) at 95 us | V | target / target | 0 … 1.5 | 1.5 |
-| `sample_error_v` | Maximum absolute V(out) minus [0.6 V + (V(vinp)+V(vinn))/2 - 0.75 V], over 92–95 us | V | minimize / ratio | 0 … +∞ | 1e-06 |
-| `hold_drift_v` | Maximum absolute V(out) minus its 95 us sample, over 96.1–99 us | V | minimize / ratio | 0 … +∞ | 1e-06 |
+| `sample_error_v` | Maximum absolute V(out) minus [0.6 V + (V(vinp)+V(vinn))/2 - 0.75 V], over 92–95 us | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 |
+| `hold_drift_v` | Maximum absolute V(out) minus its 95 us sample, over 96.1–99 us | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 |
 | `clock_power_w` | Mean of max(0,-V(phi) I(VPH)) + max(0,-V(phin) I(VPL)), over 80–100 us; returned energy is not credited | W | minimize / ratio | 0 … +∞ | 1e-12 |
 
-Area reference: **5263.8 um2**. 22 expanded device instances; sum of device/contact envelopes 3414.7414 um2, per-side envelope allowance 0.6 um, 50% routing allowance and total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across two opposite sides; the envelope sum is displayed rounded to four decimals. MOS/passive envelopes use declared W/L (or resistor dimensions) and multiplicity; explicit tap areas and HBT emitter/contact envelopes are included. This is a frozen engineering estimate, not a foundry minimum or a feasibility claim.
-
-The capability coefficient remains **5**; it is independent of
-the reference-relative task score.
+Area reference: **5263.8 um2**. The expanded circuit has 22 device instances, a sum of device/contact envelopes 3414.7414 um2, a one-sided envelope margin of 0.6 um, a routing allowance of 50%, and a total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across both sides, and the envelope sum is displayed to four decimal places. MOS/passive envelopes use W/L (or resistor dimensions) and multiplicity, including explicit contacts and HBT emitter/contact envelopes. This is a frozen engineering estimate, not a process minimum or a proven achievable area.
 
+The capability coefficient is **5**, independent of this task's reference-normalized score.
 
 ### Score weights
 
@@ -78,4 +63,4 @@ Common-mode sampler: sample accuracy 45%; hold drift 27%; output bias 4.5%; cloc
 
 Solve budget: **3 hours**.
 
-Use the reviewed SG13G2 device/rule/model resources supplied through `/protocol/resources.json` and the task definitions in `/protocol/task.json`. KLayout supplies layout and physical checks; Magic supplies candidate RC; ngspice consumes the declared deck. Discover available feedback through the runtime harness protocol. Write `output/final.gds` in the workspace and explicitly submit that GDS through the submission protocol. Reference layouts, source checkouts and authoring scripts are not solver inputs.
+Use reviewed SG13G2 devices/rules/models from `/protocol/resources.json` and the task from `/protocol/task.json`. KLayout handles layout and physical checks, Magic extracts candidate RC, and ngspice runs declared decks. Discover feedback through the runtime protocol and explicitly submit workspace `output/final.gds`; reference layouts, the source repository and author scripts are not solver inputs.

tasks/ihp-sg13g2/analog-db/cases/drv_001_pam4_sige_dac/case.toml

@@ -1,22 +1,18 @@
-in_core = true
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.drv_001_pam4_sige_dac"
 title = "Upstream broadband SiGe PAM4 current-steering driver"
 status = "qualified"
+in_core = true
 
 [origin]
 url = "https://github.com/MacAnalog/spicexplorer-release/tree/263d0322f8900dc331536fbbe6c0e804514fc454/analog-db/circuits/drv_001_pam4_sige_dac"
 
-[screening]
-decision = "include"
-reason = "Faithful upstream signoff-point circuit and layout validated through native DRC/LVS, candidate-derived CC extraction and source-paired RF/tone scoring."
-
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "b3bd687b00e596c675870da71a94dc2ecbffc1500c95fe3a9ff457546760cfa6"
+sha256 = "436f1ec15be262427731227ccc98f1e2e20e5344a9c270202d5167ee0a5eec4c"
 
 [[assets]]
 path = "materials/provenance.json"
@@ -161,13 +157,13 @@ environment = "ihp-sg13g2-pam4-signoff-cc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "f293d5119508f41a3d4b5cf940eb934d822097ed4ab4299b82a538f04f9cf10d"
+sha256 = "fcd1d78af46c04721e6dd0f025cc11df418214d5e4eee2fcc90054f898334cc1"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "310d1f67d5d237cfc88525f26568c5bcf45680bb2e8141982600669ee81a2ead"
 subcircuit = "pam4drv_pam4_lay"
+sha256 = "310d1f67d5d237cfc88525f26568c5bcf45680bb2e8141982600669ee81a2ead"
 
 [task.inputs.simulation]
 path = "materials/circuit.spice"
@@ -177,7 +173,7 @@ sha256 = "54e5da9d47efea6a63e92298f62b20b24f4c6654b21f48fcadf88bf1dfdeda3a"
 [task.inputs.performance]
 path = "materials/testbench.spice"
 format = "spice"
-sha256 = "3b4e7c1c84b2dfb82e22cbc59b4abad5948608e463b789d97e057de9094197ca"
+sha256 = "00e01511f75908acf98e1f7fe801a9aa92475e9669112d1ed6b4194d87dc7532"
 
 [task.constraints]
 quality = [
@@ -312,20 +308,20 @@ mode = "post_layout"
 [task.evaluation.scoring]
 method = "layout"
 area_metric = "functional_area"
-area_target = 10000.0
-rationale = "PAM4 SiGe driver: binary weighting 22.5%; high-frequency transfer 22.5%; port matching 18%; gain and swing 18%; power 9%; area 10%. Each objective's weight is divided equally among its metrics."
+area_target = 700.0
+rationale = "The 700 um2 area budget demands compact HBT/resistor placement while RF quality carries 80%. Binary weighting gets 20% with a 0.1 dB deviation scale (about 1.16% amplitude-ratio change), replacing the previous 6.02 dB scale that hid weighting error. Gain rolloff and port reflection retain distinct frequency measurements and source anchors. Supply power and fundamental swing retain 5% each; fixed DC bias does not dominate the score."
 
 [task.evaluation.scoring.weights]
-functional_area = 0.1
-dac_weight_db = 0.225
-lsb_rel50_db = 0.1125
-msb_rel50_db = 0.1125
-s11_32g_db = 0.09
-s22_50g_db = 0.09
-lsb_gain_db = 0.06
-msb_gain_db = 0.06
-swing_vpp = 0.06
-power_mw = 0.09
+functional_area = 0.2
+dac_weight_db = 0.2
+lsb_rel50_db = 0.1
+msb_rel50_db = 0.1
+s11_32g_db = 0.1
+s22_50g_db = 0.1
+lsb_gain_db = 0.05
+msb_gain_db = 0.05
+swing_vpp = 0.05
+power_mw = 0.05
 
 [[task.evaluation.jobs]]
 id = "artifact"
@@ -504,7 +500,11 @@ direction = "target"
 aggregation = "min"
 dimension = "bias"
 normalization = "target"
-scale = 6.020599913279624
+scale = 0.1
+
+[task.evaluation.metrics.quality_target]
+value = 6.020599913279624
+rationale = "Ideal PAM4 binary weighting requires an MSB/LSB voltage ratio of two, or 20*log10(2) dB."
 
 [[task.evaluation.metrics]]
 id = "lsb_rel50_db"
@@ -580,7 +580,10 @@ direction = "minimize"
 aggregation = "max"
 dimension = "supply"
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0.0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
 
 [[task.evaluation.metrics]]
 id = "swing_vpp"
@@ -596,13 +599,16 @@ direction = "maximize"
 aggregation = "min"
 dimension = "response"
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0.0
+rationale = "The declared response magnitude, impedance, capacitance, amplitude or absolute return-ratio diagnostic has a nonnegative measurement domain; its value remains a quality or diagnostic observation."
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "cb18a7c3f720e0471893698e2cd5dd7c5edb29cb2f23eab10314b2388285ed9b"
+source_report_sha256 = "1a5895f3ebe62878c9e2a55bcd19bcca46730359c63ed2de3c0d0ae7137e6bbb"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": \"hsa\", \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:6562558774d43c085a289bbba696c55959eb8051a0996f96633451fbeb9c652d\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"b9527ba49c9eab307a254db28aa45c302eadd71b2563bdec44c610780fa6ed62\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": \"hsa\", \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"7b432fb4cf7911c02eacee3ceaad658c961f16f22bc890ee7ad89b3e44108141\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_nominal]
 operation = "circuit.simulate"
@@ -635,7 +641,7 @@ s22 = "s22.raw"
 swing = "swing.raw"
 
 [task.evaluation.pre_layout.jobs.source_nominal.input_sha256]
-deck = "3b4e7c1c84b2dfb82e22cbc59b4abad5948608e463b789d97e057de9094197ca"
+deck = "00e01511f75908acf98e1f7fe801a9aa92475e9669112d1ed6b4194d87dc7532"
 circuit = "54e5da9d47efea6a63e92298f62b20b24f4c6654b21f48fcadf88bf1dfdeda3a"
 
 [task.evaluation.pre_layout.jobs.source_nominal.measurements.dac_weight_db]
@@ -674,6 +680,12 @@ unit = "dB"
 value = 2.739725
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_nominal.output_sha256]
+lsb = "c421c22e487b4fd09ea35f38c645a0bbbcb98d361e1b47c6d2a81fea86a31f0e"
+msb = "6d60c07487e07c12d38633dfc3122ff664cdd14f4a93a81a863fdddd8319b3f9"
+s22 = "680eba49b47626e0fe666f8b4fb9ccd33f073c37acc8a9fb21b037ef723ab005"
+swing = "29b4e061d19a8cd86300862348e05a62db696bd5d129f7fbb881d1b8eabfc910"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -686,7 +698,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -694,7 +706,7 @@ timeout_seconds = 600
 type = "klayout-docker"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 timeout_seconds = 600
 support = "build/support/pam4-native/klayout"
@@ -707,7 +719,7 @@ support = "klayout"
 type = "klayout-docker"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 timeout_seconds = 600
 support = "build/support/pam4-native/klayout"
@@ -720,21 +732,24 @@ support = "klayout"
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.cc]
 type = "sg13g2-kpex-cc-docker"
 
 [toolchain.backends.cc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 600
 
 [toolchain.backends.simulation]
 type = "ngspice-docker"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/pam4-native/hbt-models"
 compatibility = "hsa"
 timeout_seconds = 600
@@ -748,3 +763,7 @@ reference = "reference/pam4drv_pam4_lay.gds"
 [presentation]
 category = "Amplifiers & RF"
 summary = "Combines weighted current-steering cells into a SiGe PAM4 driver."
+
+[screening]
+decision = "include"
+reason = "Faithful upstream signoff-point circuit and layout validated through native DRC/LVS, candidate-derived CC extraction and source-paired RF/tone scoring."

tasks/ihp-sg13g2/analog-db/cases/drv_001_pam4_sige_dac/materials/testbench.spice

@@ -32,6 +32,7 @@ set filetype=ascii
 op
 let power_mw = -4000*i(vcc)
 print power_mw
+save i(vcc) v(msbn) v(msbp) v(outn) v(outp)
 ac dec 20 1e8 1e11
 let s21db=db(2*(v(outp)-v(outn)))
 meas ac lsb_gain_db find s21db at=1e9

tasks/ihp-sg13g2/analog-db/cases/drv_001_pam4_sige_dac/problem.md

@@ -58,82 +58,58 @@ no MIM layers are stripped and no source devices are reinserted. The process
 reference plane is tied to `sub`. Distributed wire resistance, inductance,
 pads/package, statistical yield and process-corner robustness are not claimed
 by this upstream CC characterization contract. Finite substrate/tail-generator
-circuits are outside the physical core. A PAM4 eye/RLM result is not established
-by these tone and small-signal checks.
+circuits are outside the physical core. A PAM4 eye/RLM result is not established by these tone and small-signal checks.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations remain required evidence; the binary-weighting target below replaces its source scoring anchor. Reports retain every paired result.
+
+Let x be the post-layout measurement and b the declared quality target, or the same-condition source measurement when no target is declared:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. First compute each metric's raw quality q from the worst paired condition, with raw area quality q_area = area_target / candidate_functional_area. Credit c_i = min(1, q_i) for every positively weighted metric, then compute S = 100 * product(c_i ** w_i). The weights sum to 1 and the score is bounded by 100. An improvement beyond one target cannot compensate for missing another target. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Reaching every positively weighted target scores 100; a feasible reference may score far below 100. Weights express quality tradeoffs, not acceptance bounds.
 
 All measurements and their paired source observations must be finite and usable.
-Performance is scored continuously against the same-condition source circuit;
+Performance is scored continuously against the declared quality anchors;
 upstream data-sheet targets are not acceptance thresholds. Supply consumption
 and output swing must be nonnegative; zero or otherwise unusable ratio baselines
 cannot establish a score. Physical checks remain mandatory.
 
-| Metric | Definition | Unit | Quality rule | Functional bounds |
+| Metric | Definition | Unit | Quality normalization | Functional range |
 | --- | --- | --- | --- | --- |
-| `lsb_gain_db` | LSB S21 at 1 GHz | dB | maximize / db20 | none |
-| `msb_gain_db` | MSB S21 at 1 GHz | dB | maximize / db20 | none |
-| `dac_weight_db` | MSB minus LSB gain | dB | source target | none |
-| `lsb_rel50_db` | LSB S21(50 GHz) minus S21(1 GHz) | dB | maximize / db20 | none |
-| `msb_rel50_db` | MSB S21(50 GHz) minus S21(1 GHz) | dB | maximize / db20 | none |
-| `s11_32g_db` | MSB input reflection coefficient, 20 log10(abs(S11)), at 32 GHz | dB | minimize / db20 | none |
-| `s22_50g_db` | Output reflection coefficient, 20 log10(abs(S22)), at 50 GHz | dB | minimize / db20 | none |
+| `lsb_gain_db` | LSB S21 at 1 GHz | dB | maximize / db20 | None |
+| `msb_gain_db` | MSB S21 at 1 GHz | dB | maximize / db20 | None |
+| `dac_weight_db` | MSB minus LSB gain | dB | ideal 2:1 target | None |
+| `lsb_rel50_db` | LSB S21(50 GHz) minus S21(1 GHz) | dB | maximize / db20 | None |
+| `msb_rel50_db` | MSB S21(50 GHz) minus S21(1 GHz) | dB | maximize / db20 | None |
+| `s11_32g_db` | MSB input reflection coefficient, 20 log10(abs(S11)), at 32 GHz | dB | minimize / db20 | None |
+| `s22_50g_db` | Output reflection coefficient, 20 log10(abs(S22)), at 50 GHz | dB | minimize / db20 | None |
 | `power_mw` | Power drawn from the 4 V rail at OP | mW | minimize / ratio | ≥ 0 |
 | `swing_vpp` | Differential output fundamental swing | V | maximize / ratio | ≥ 0 |
 
-Independent source simulation uses the same deck, conditions and models.
-Response quality uses `db20` for gain,
-relative bandwidth and reflection-coefficient dB, and a maximizing ratio for swing. Binary
-weight uses target normalization to its source value with a `20*log10(2)` dB scale, the ideal binary amplitude-weight interval. Supply quality uses a minimizing
-power ratio. Area quality is `Q = 10000 µm² / functional_area`. The frozen compact
-allowance is 4500 µm² for device rows + 2000 µm² for terminations/loads +
-3500 µm² for routing, vias and substrate contacts. Reflection-coefficient dB
-is the negative of positive return loss, so smaller values improve quality. Physical or electrical rejection scores zero; incomplete evaluation
-cannot establish success. The area target is a compact sizing allowance,
-not the area of a qualified reference.
+Independent source simulation uses the same deck, conditions and models. Binary weighting uses **20*log10(2) = 6.020599913279624 dB** as its quality target and **0.1 dB** as its deviation scale. Gain, relative bandwidth, port reflections, swing and power retain their paired source anchors. Reflection-coefficient dB is the negative of positive return loss, so smaller values improve quality.
 
+The area quality target is **700 um2**. Neither this area target nor the electrical quality target is an acceptance cutoff.
 
-### Score weights
+The 700 um2 area budget demands compact HBT/resistor placement while RF quality carries 80%. Binary weighting gets 20% with a 0.1 dB deviation scale (about 1.16% amplitude-ratio change), replacing the previous 6.02 dB scale that hid weighting error. Gain rolloff and port reflection retain distinct frequency measurements and source anchors. Supply power and fundamental swing retain 5% each; fixed DC bias does not dominate the score.
 
-PAM4 SiGe driver: binary weighting 22.5%; high-frequency transfer 22.5%; port matching 18%; gain and swing 18%; power 9%; area 10%. Each objective's weight is divided equally among its metrics.
+### Score weights
 
 | Metric | Weight |
 | --- | ---: |
-| `functional_area` | 0.1 |
-| `dac_weight_db` | 0.225000000000 |
-| `lsb_rel50_db` | 0.112500000000 |
-| `msb_rel50_db` | 0.112500000000 |
-| `s11_32g_db` | 0.090000000000 |
-| `s22_50g_db` | 0.090000000000 |
-| `lsb_gain_db` | 0.060000000000 |
-| `msb_gain_db` | 0.060000000000 |
-| `swing_vpp` | 0.060000000000 |
-| `power_mw` | 0.090000000000 |
+| `functional_area` | 0.2 |
+| `dac_weight_db` | 0.2 |
+| `lsb_rel50_db` | 0.1 |
+| `msb_rel50_db` | 0.1 |
+| `s11_32g_db` | 0.1 |
+| `s22_50g_db` | 0.1 |
+| `lsb_gain_db` | 0.05 |
+| `msb_gain_db` | 0.05 |
+| `swing_vpp` | 0.05 |
+| `power_mw` | 0.05 |
 
 ## Tools and Submission
 

tasks/ihp-sg13g2/analog-db/cases/ia_002_fan_chopper_simple/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.ia_002_fan_chopper_simple"
 title = "Fan Clocked Capacitive Instrumentation Amplifier"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "e19dc21fdc2350086a35fa403efc852191c17ebe855b2f57d213dcfa4a21b3b2"
+sha256 = "7da1dda9bd90c197f234b71984e9c323f3bfecc9e48c814270b0987a1d1d824e"
 
 [[assets]]
 path = "reference/ia_002_fan_chopper_simple.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-clocked-rc-tt"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "85655dfeda58d48b8532f6215a87d539ec0a0175ac38b97a2c50fec4c071ee77"
+sha256 = "c9d9a3a76435976ea3c4f6776252493fd48fad6c95efd8b87743a33945f52037"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "97f83b5e7f5fb018b9212759ab77f039f748e14d2ef15280b1e4fc7730ba8afb"
 subcircuit = "ia_002_fan_chopper_simple"
+sha256 = "97f83b5e7f5fb018b9212759ab77f039f748e14d2ef15280b1e4fc7730ba8afb"
 
 [task.inputs.simulation]
 path = "materials/circuit.spice"
@@ -44,7 +44,7 @@ sha256 = "3a607e575115a85d667d2ed160e683938954ff4c8f4b6a3012dbdd0082a8f888"
 [task.inputs.performance]
 path = "materials/testbench.spice"
 format = "spice"
-sha256 = "6262f1015a05e02f390eaa04dbac647cdc1450d5beddbfbd7e26a0c9a798b0e9"
+sha256 = "7c7b3e282ada822a7d87552e96248624fd602187240ced57b548dd0ad272ef80"
 
 [task.constraints]
 quality = [
@@ -456,7 +456,6 @@ direction = "maximize"
 aggregation = "min"
 dimension = "response"
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 category = "performance"
 observations = [
@@ -468,6 +467,10 @@ baseline = [
     "source_condition_1:gain_vv",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The reported sinusoidal transfer magnitude is nonnegative by definition; no minimum gain target is imposed."
+
 [[task.evaluation.metrics]]
 id = "phase_deg"
 unit = "deg"
@@ -486,7 +489,6 @@ direction = "maximize"
 aggregation = "min"
 dimension = "response"
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 category = "performance"
 observations = [
@@ -498,6 +500,10 @@ baseline = [
     "source_condition_1:zin_ohm",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The reported differential input-impedance magnitude is nonnegative by definition."
+
 [[task.evaluation.metrics]]
 id = "admittance_real_s"
 unit = "S"
@@ -544,9 +550,8 @@ unit = "V"
 direction = "minimize"
 aggregation = "max"
 dimension = "response"
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
-lower = 0
 category = "performance"
 observations = [
     "condition_0:residual_rms_v",
@@ -557,6 +562,10 @@ baseline = [
     "source_condition_1:residual_rms_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The residual RMS magnitude has a nonnegative measurement domain."
+
 [[task.evaluation.metrics]]
 id = "ripple_pp_v"
 unit = "V"
@@ -614,9 +623,8 @@ unit = "V"
 direction = "minimize"
 aggregation = "max"
 dimension = "response"
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
-lower = 0
 category = "performance"
 observations = [
     "condition_0:window_change_v",
@@ -627,6 +635,10 @@ baseline = [
     "source_condition_1:window_change_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The magnitude of the adjacent-window complex transfer difference is nonnegative."
+
 [[task.evaluation.metrics]]
 id = "modulation_error_rms_v"
 unit = "V"
@@ -657,7 +669,6 @@ aggregation = "max"
 dimension = "supply"
 normalization = "ratio"
 scale = 1e-12
-lower = 0
 category = "performance"
 observations = [
     "condition_0:power_w",
@@ -668,6 +679,10 @@ baseline = [
     "source_condition_1:power_w",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered amplifier consumes net supply and bias energy over the complete observation window."
+
 [[task.evaluation.metrics]]
 id = "clock_power_w"
 unit = "W"
@@ -676,7 +691,6 @@ aggregation = "max"
 dimension = "supply"
 normalization = "ratio"
 scale = 1e-12
-lower = 0
 category = "performance"
 observations = [
     "condition_0:clock_power_w",
@@ -687,6 +701,10 @@ baseline = [
     "source_condition_1:clock_power_w",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The complementary switching ports consume nonnegative net clock energy over the complete observation window."
+
 [[task.evaluation.metrics]]
 id = "boundary_error_s"
 unit = "s"
@@ -699,10 +717,10 @@ observations = [
 ]
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "5f72f29b6d7c2eff04ccc9737bd4674208e6716dbae1d2df81240237d98694b5"
+source_report_sha256 = "bc4c5faa902750fd5d2fc7207357b87145e87dac97ca6a0710e13750b422ef0a"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:34eff92f7ffca7b8b010bcded394c4625c14143c757fda519e873b7ef8e87dc5\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"49a39032e4e7f0d32f9a23d65c009b0111fa9f56f13ec3ae1037db1105f86fbc\", \"timeout_seconds\": 900.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 4, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"2\", \"OMP_THREAD_LIMIT\": \"2\"}, \"threads\": 2, \"timeout_seconds\": 900.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -742,7 +760,7 @@ boundary_error_s = "s"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.input_sha256]
-deck = "6262f1015a05e02f390eaa04dbac647cdc1450d5beddbfbd7e26a0c9a798b0e9"
+deck = "7c7b3e282ada822a7d87552e96248624fd602187240ced57b548dd0ad272ef80"
 dut = "3a607e575115a85d667d2ed160e683938954ff4c8f4b6a3012dbdd0082a8f888"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.admittance_imag_s]
@@ -813,6 +831,9 @@ unit = "V"
 value = 12833155.13880835
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+transient = "f8bbda59fe9fba44f71bb5764c150f97d1e880376d27d03320a66b32ab583c81"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -851,7 +872,7 @@ boundary_error_s = "s"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.input_sha256]
-deck = "6262f1015a05e02f390eaa04dbac647cdc1450d5beddbfbd7e26a0c9a798b0e9"
+deck = "7c7b3e282ada822a7d87552e96248624fd602187240ced57b548dd0ad272ef80"
 dut = "3a607e575115a85d667d2ed160e683938954ff4c8f4b6a3012dbdd0082a8f888"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.admittance_imag_s]
@@ -922,6 +943,9 @@ unit = "V"
 value = 12856835.00380523
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+transient = "6b708e81d71055b8a4cf956707f91e12f9f2ce007577968e33b539aa3d720e02"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -934,7 +958,7 @@ unit = "ohm"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -945,7 +969,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -958,7 +982,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -971,7 +995,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -985,7 +1009,7 @@ grid_subdivision = 2
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -995,7 +1019,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 4
+threads = 2
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-res-models"
 timeout_seconds = 900
 

tasks/ihp-sg13g2/analog-db/cases/ia_002_fan_chopper_simple/materials/testbench.spice

@@ -28,7 +28,6 @@ VCN2 clk_chout_not 0 pulse(1.2 0 0 50n 50n 99.95u 200u)
 XD inp inn outp outn ref clk_chin clk_chin_not clk_chfb clk_chfb_not clk_chout clk_chout_not vdd 0 vb1 vb2 vb3 vb4 inch_p inch_n fbch_p fbch_n g2_p g2_n vsum_p vsum_n ia_002_fan_chopper_simple
 .control
 set noaskquit
-set num_threads=1
 set numdgt=15
 save v(inp) v(inn) v(outp) v(outn) v(clk_chin) v(clk_chin_not) i(VP) i(VN) i(VDD) v(inch_p) v(inch_n) v(fbch_p) v(fbch_n) v(g2_p) v(g2_n) v(vsum_p) v(vsum_n) v(vdd) v(vb1) v(vb2) v(vb3) v(vb4) v(ref) v(freq) v(amp) i(VREF) i(VB1) i(VB2) i(VB3) i(VB4) i(VC0) i(VCN0) v(clk_chfb) v(clk_chfb_not) i(VC1) i(VCN1) v(clk_chout) v(clk_chout_not) i(VC2) i(VCN2)
 tran 200n 40m 0 200n

tasks/ihp-sg13g2/analog-db/cases/ia_002_fan_chopper_simple/problem.md

@@ -6,10 +6,10 @@ Implement the supplied 39 MOS, 2 R, 6 C circuit. Preserve the running input, fee
 
 ## Inputs and Interface
 
-- `problem.md`: description input.
-- `materials/circuit.cdl`: netlist input.
-- `materials/circuit.spice`: simulation input.
-- `materials/testbench.spice`: performance input.
+- `problem.md`: task description.
+- `materials/circuit.cdl`: physical netlist.
+- `materials/circuit.spice`: simulation circuit.
+- `materials/testbench.spice`: performance tests.
 
 Ordered ports: `vinp vinn voutp voutn vref clk_chin clk_chin_not clk_chfb clk_chfb_not clk_chout clk_chout_not vdd vss vb1 vb2 vb3 vb4 inch_p inch_n fbch_p fbch_n g2_p g2_n vsum_p vsum_n`. Preserve these named connections.
 
@@ -17,17 +17,13 @@ The CDL and simulator netlist are equivalent physical representations. Use their
 
 ## Operating Conditions
 
-TT, 27 C, VDD=1.2 V, input common mode and vref=0.6 V; vb1/vb2/vb3/vb4=0.5/0.75/0.45/0.55 V. Each complementary clock pair runs synchronously at 5 kHz with 50 ns rise/fall, 99.95 us pulse width and 200 us period. All positive phases align. Differential sinusoidal input is 10 mV peak at 100 and 200 Hz; load is 50 fF per output. Maximum timestep is 200 ns with adaptive edge resolution. The test runs 40 ms; 0–20 ms is discarded. The 20–40 ms observation spans 100 chop cycles and two/four signal cycles. Adjacent 20–30/30–40 ms windows report transfer variation. This is a finite-window observation of the full clocked circuit, not a claim of asymptotic periodic stability.
+TT, 27 C, VDD=1.2 V, input common mode and vref=0.6 V; vb1/vb2/vb3/vb4=0.5/0.75/0.45/0.55 V. Complementary clocks are synchronized at 5 kHz with 50 ns edges, 99.95 us pulse width and 200 us period; positive phases are aligned. Differential sine peak is 10 mV at 100/200 Hz, with 50 fF per output. Maximum step 200 ns adaptively resolves edges. Simulate 40 ms, discard the first 20 ms; 20–40 ms spans 100 chopping periods and 2/4 signal periods, and subwindows 20–30/30–40 ms compare transfer changes. Finite windows do not prove asymptotic periodic stability.
 
 ## Physical Requirements
 
-Submit a nonempty GDSII of at most 10485760 bytes.
-Native IHP DRC and named-interface LVS must pass without waivers. The functional bounding rectangle includes device, well, contact and complete routing layers, excluding annotations, and must fit 5000 by 1000 um. Native physical taps and all passive units are part of the contract.
+Submit nonempty GDSII of at most 10485760 bytes. Pass native IHP DRC and named-interface LVS without waivers. Functional bounds include devices, wells, contacts and all routing layers, excluding annotations, and are at most 5000 × 1000 um. Retain native physical contacts and all passive cells.
 
-Magic extracts candidate interconnect resistance/capacitance and device
-junction geometry. Wells/substrate are connected to physical tap rails; source
-simulation retains finite tap models. Distributed substrate, statistical
-mismatch and manufacturing signoff are outside this nominal contract.
+Magic extracts candidate interconnect RC and device junction geometry. Wells/substrate connect to physical-contact supply rails; source simulation retains finite contact models. The nominal contract excludes distributed substrate effects, statistical mismatch and manufacturing signoff.
 
 The scored functional layer/datatype pairs are `[[1, 0], [3, 0], [5, 0], [6, 0], [7, 0], [8, 0], [10, 0], [11, 0], [13, 0], [14, 0], [19, 0], [24, 0], [26, 0], [28, 0], [29, 0], [30, 0], [31, 0], [32, 0], [33, 0], [35, 0], [36, 0], [40, 0], [44, 0], [46, 0], [49, 0], [50, 0], [51, 0], [52, 0], [53, 0], [55, 0], [58, 0], [66, 0], [67, 0], [90, 0], [101, 0], [111, 0], [125, 0], [126, 0], [128, 0], [129, 0], [133, 0], [134, 0], [139, 0], [152, 0]]`.
 
@@ -35,36 +31,23 @@ The scored functional layer/datatype pairs are `[[1, 0], [3, 0], [5, 0], [6, 0],
 
 Use the supplied transient testbench on the extracted candidate. Time-weighted sine/cosine integrals give complex differential transfer and input admittance. Full-precision cumulative integrals at the 20/30/40 ms clock breakpoints avoid cancellation of rounded measurement averages. The summed endpoint error must not exceed 1 ps; this is measurement validity, not a circuit performance gate. Input impedance is the magnitude of differential voltage divided by differential source current, where input current is -(i(VP)-i(VN))/2. Residual RMS removes the measured DC and fundamental; full output peak-to-peak also includes signal and all ripple. It must not be represented as switching ripple alone. Input and feedback modulation errors compare clock-demodulated branch voltages to the associated external signals. Raw monitor waveforms support independent checking of the switching paths. Ordinary DC/AC does not replace these measurements.
 
-Every measurement must be finite. Magnitudes, RMS values and total consumed supply/clock power have nonnegative physical domains. No paper gain, input-impedance boost or ripple specification is a hard gate. Slow common-mode excursions and finite-window variation are reported and scored, not suppressed with a CMFB. The source uses the identical physical devices, clocks, loads and observation windows in an independent simulation. No PAC/PNoise, PSS, noise, mismatch, PVT or supply-startup capability is claimed.
+All measurements must be finite; amplitudes, RMS and total supply/clock consumption power must be nonnegative. Paper gain, input-impedance enhancement and ripple specifications are not hard thresholds. Slow common-mode variation and differences between windows are reported and scored without added CMFB suppression; independent source simulation uses the same devices, clocks, loads and windows. No PAC/PNoise, PSS, noise, mismatch, PVT or power-up startup capability is claimed.
 
 Area quality is Q=71369.42 um2/functional area. The compact estimate sums MOS (W+2.4)(L+2.4), a 3.2² local tap envelope per MOS and one global tap, each MIM (side+2.4)², and forty (.5+2.4)(84.45+2.4) resistor envelopes per bias arm, then adds 50% routing allowance. It is independent of the witness. Gain and input-impedance magnitudes use source ratios; phase is diagnostic to avoid angular-wrap scoring; residual and window variation use inverse ratios with 1 uV floor; output bias uses 1.2 V target scale; power uses inverse ratios with 1 pW floor. Other observations are diagnostics. Coefficient 8 reflects clock modulation coupled to a compensated capacitive signal-feedback loop; no common-mode regulation is assumed.
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-| Metric | Definition / observation | Unit | Quality / dimension | Functional bounds | Scale |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+`residual_rms_v`, `window_change_v` use `saturating_ratio`: q = 2(b+s)/(b+x+2s), where x is candidate error, b is paired source error and s is the positive scale below. Source equivalence gives q=1; improvement approaches the upper limit 2 with diminishing returns. The scale retains its declared unit and numerical-floor meaning. Normalize each condition before taking the worst quality; other rules follow their declarations.
+
+| Metric | Definition / observation | Unit | Quality / dimension | Functional range | Scale |
 | --- | --- | --- | --- | --- | --- |
 | `functional_area` | Functional bounding-rectangle area | um2 | area quality Q | positive area | — |
 | `gain_vv` | `2*sqrt(dsmean^2+dcmean^2)/amplitude` | V/V | maximize / ratio / response | 0 … +∞ | 1e-12 |
@@ -73,29 +56,23 @@ can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
 | `admittance_real_s` | `-2*ismean/amplitude` | S | diagnostic | −∞ … +∞ | — |
 | `admittance_imag_s` | `-2*icmean/amplitude` | S | diagnostic | −∞ … +∞ | — |
 | `dm_mean_v` | `avg dm from=20m to=40m` | V | target / target / bias | −∞ … +∞ | 1.2 |
-| `residual_rms_v` | `rms residual from=20m to=40m` | V | minimize / ratio / response | 0 … +∞ | 1e-06 |
+| `residual_rms_v` | `rms residual from=20m to=40m` | V | minimize / saturating_ratio / response | 0 … +∞ | 1e-06 |
 | `ripple_pp_v` | `pp dm from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `cm_mean_v` | `avg cm from=20m to=40m` | V | target / target / bias | −∞ … +∞ | 1.2 |
 | `cm_min_v` | `min cm from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `cm_max_v` | `max cm from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
-| `window_change_v` | `2*sqrt((dsfirst-dslast)^2+(dcfirst-dclast)^2)` | V | minimize / ratio / response | 0 … +∞ | 1e-06 |
+| `window_change_v` | `2*sqrt((dsfirst-dslast)^2+(dcfirst-dclast)^2)` | V | minimize / saturating_ratio / response | 0 … +∞ | 1e-06 |
 | `modulation_error_rms_v` | `rms modulation_error from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `feedback_error_rms_v` | `rms feedback_error from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `power_w` | `avg supplied from=20m to=40m` | W | minimize / ratio / supply | 0 … +∞ | 1e-12 |
 | `clock_power_w` | `avg clocks from=20m to=40m` | W | minimize / ratio / supply | 0 … +∞ | 1e-12 |
 | `boundary_error_s` | `abs(time[i20]-20m)+abs(time[i30]-30m)+abs(time[i40]-40m)` | s | diagnostic | −∞ … +∞ | — |
 
-Apply each row to every declared load/tone condition. Pair each candidate
-observation with its `source_` job under the identical condition. The supplied
-deck defines intermediate vectors used in the expressions above.
-The 1 ps endpoint alignment check aborts simulation with a nonzero exit
-before invalid integrals are reported. Its residual is diagnostic; a failed
-validity check produces an evaluator error and unknown score, not electrical failure.
-
+Each row applies to every declared load/frequency condition; pair the candidate with `source_` under matching conditions, and see the deck for intermediate vectors. Failed 1 ps endpoint-alignment checks terminate simulation with nonzero exit status before emitting invalid integrals; residuals are diagnostic only. Failure is an evaluation error with unknown score, not electrical functional rejection.
 
 ### Score weights
 
-Clocked instrumentation amplifiers: signal fidelity 31.3%; drift and ripple 19.6%; input impedance 15.7%; common-mode behavior 15.7%; supply and clock power 7.83%; area 10%. Each objective's weight is divided equally among its metrics.
+Clocked instrumentation amplifier: signal fidelity 31.3%, drift and ripple 19.6%, input impedance 15.7%, common-mode behavior 15.7%, supply and clock power 7.83%, area 10%; each objective weight is divided equally among its metrics.
 
 | Metric | Weight |
 | --- | ---: |
@@ -115,8 +92,4 @@ Solve budget: **10 hours**.
 
 Submit GDS top cell ia_002_fan_chopper_simple. Evaluation runs native DRC/LVS, geometry, Magic candidate-derived RC extraction and ngspice transient measurement using reviewed resources. Reference materials and source checkouts are not solver inputs.
 
-Discover the frozen task, resources and submission interface through
-`/protocol/task.json`, `/protocol/resources.json` and `/protocol/harness.json`.
-Declared inputs are under `/task`. Write `/workspace/output/final.gds`
-and explicitly submit with `python -I /protocol/submit.py`. Creating the file
-alone does not submit it. Only feedback supported by the active harness is available.
+Discover the frozen task, resources and submission interface through `/protocol/task.json`, `/protocol/resources.json` and `/protocol/harness.json`. Declared inputs are in `/task`. Write `/workspace/output/final.gds`, then run `python -I /protocol/submit.py` to submit explicitly; file generation alone is not submission. Feedback follows the capabilities provided by the current runtime protocol.

tasks/ihp-sg13g2/analog-db/cases/ia_003_fan_chopper_pf/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.ia_003_fan_chopper_pf"
 title = "Fan Clocked Capacitive Instrumentation Amplifier with Positive Feedback"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "832704844c6e8cf8f9834c9e41de568e61b3cc0ee7233b797cacbe9871b1425f"
+sha256 = "f6bbcfe395fb6447182bfd4988b37da479c3fc6ef6809f0ec085e5c395267fe0"
 
 [[assets]]
 path = "reference/ia_003_fan_chopper_pf.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-clocked-rc-tt"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "f9eebb7e68f01c525413951c0d5aee1dfb9ed326afe723ea7ffb5df107a69708"
+sha256 = "a0fc460b449dc67e10e1cb5bba5cd52ce3c8f829d7c28f83cdec25f90e6049d1"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "870cd5a0b88e0e29454c43f5d4c2e7c555b0ec9dd9f609f9c1e19f6b9258d71a"
 subcircuit = "ia_003_fan_chopper_pf"
+sha256 = "870cd5a0b88e0e29454c43f5d4c2e7c555b0ec9dd9f609f9c1e19f6b9258d71a"
 
 [task.inputs.simulation]
 path = "materials/circuit.spice"
@@ -44,7 +44,7 @@ sha256 = "6c5a19572e1c3fe59bcf248d6133d2f56b5357bf6bde73d64e4c6c3828791a89"
 [task.inputs.performance]
 path = "materials/testbench.spice"
 format = "spice"
-sha256 = "b374ce1e2e95b4a063454e8d55e3602a7aefa88c2501950e34ee29270242fea8"
+sha256 = "778f3eddd82a0829495c94a56e4a0d48adca09b2e7969829f8033cbc91242d04"
 
 [task.constraints]
 quality = [
@@ -462,7 +462,6 @@ direction = "maximize"
 aggregation = "min"
 dimension = "response"
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 category = "performance"
 observations = [
@@ -474,6 +473,10 @@ baseline = [
     "source_condition_1:gain_vv",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The reported sinusoidal transfer magnitude is nonnegative by definition; no minimum gain target is imposed."
+
 [[task.evaluation.metrics]]
 id = "phase_deg"
 unit = "deg"
@@ -492,7 +495,6 @@ direction = "maximize"
 aggregation = "min"
 dimension = "response"
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 category = "performance"
 observations = [
@@ -504,6 +506,10 @@ baseline = [
     "source_condition_1:zin_ohm",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The reported differential input-impedance magnitude is nonnegative by definition."
+
 [[task.evaluation.metrics]]
 id = "admittance_real_s"
 unit = "S"
@@ -550,9 +556,8 @@ unit = "V"
 direction = "minimize"
 aggregation = "max"
 dimension = "response"
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
-lower = 0
 category = "performance"
 observations = [
     "condition_0:residual_rms_v",
@@ -563,6 +568,10 @@ baseline = [
     "source_condition_1:residual_rms_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The residual RMS magnitude has a nonnegative measurement domain."
+
 [[task.evaluation.metrics]]
 id = "ripple_pp_v"
 unit = "V"
@@ -620,9 +629,8 @@ unit = "V"
 direction = "minimize"
 aggregation = "max"
 dimension = "response"
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
-lower = 0
 category = "performance"
 observations = [
     "condition_0:window_change_v",
@@ -633,6 +641,10 @@ baseline = [
     "source_condition_1:window_change_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The magnitude of the adjacent-window complex transfer difference is nonnegative."
+
 [[task.evaluation.metrics]]
 id = "modulation_error_rms_v"
 unit = "V"
@@ -663,7 +675,6 @@ aggregation = "max"
 dimension = "supply"
 normalization = "ratio"
 scale = 1e-12
-lower = 0
 category = "performance"
 observations = [
     "condition_0:power_w",
@@ -674,6 +685,10 @@ baseline = [
     "source_condition_1:power_w",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered amplifier consumes net supply and bias energy over the complete observation window."
+
 [[task.evaluation.metrics]]
 id = "clock_power_w"
 unit = "W"
@@ -682,7 +697,6 @@ aggregation = "max"
 dimension = "supply"
 normalization = "ratio"
 scale = 1e-12
-lower = 0
 category = "performance"
 observations = [
     "condition_0:clock_power_w",
@@ -693,6 +707,10 @@ baseline = [
     "source_condition_1:clock_power_w",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The complementary switching ports consume nonnegative net clock energy over the complete observation window."
+
 [[task.evaluation.metrics]]
 id = "pf_error_rms_v"
 unit = "V"
@@ -716,10 +734,10 @@ observations = [
 ]
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "7eef7592f01c4a9f1a187b4acac52b029ba6a6f7266522075acebc1bb3d765b2"
+source_report_sha256 = "1b918f556d15a6b50336a1e759c9888a22d6abb8d1a88e050104c4251f6bb411"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:34eff92f7ffca7b8b010bcded394c4625c14143c757fda519e873b7ef8e87dc5\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"fd99996a16c5446058c419fa1dd3f1eb97376800952b35092e609fbe163c25c5\", \"timeout_seconds\": 900.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 4, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"2\", \"OMP_THREAD_LIMIT\": \"2\"}, \"threads\": 2, \"timeout_seconds\": 900.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -760,7 +778,7 @@ boundary_error_s = "s"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.input_sha256]
-deck = "b374ce1e2e95b4a063454e8d55e3602a7aefa88c2501950e34ee29270242fea8"
+deck = "778f3eddd82a0829495c94a56e4a0d48adca09b2e7969829f8033cbc91242d04"
 dut = "6c5a19572e1c3fe59bcf248d6133d2f56b5357bf6bde73d64e4c6c3828791a89"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.admittance_imag_s]
@@ -835,6 +853,9 @@ unit = "V"
 value = 22663708.30942519
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+transient = "bc150f6c6a7146ac1d412aa2ad4dcd54f5fae5ac797a631a449866ea76861891"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -874,7 +895,7 @@ boundary_error_s = "s"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.input_sha256]
-deck = "b374ce1e2e95b4a063454e8d55e3602a7aefa88c2501950e34ee29270242fea8"
+deck = "778f3eddd82a0829495c94a56e4a0d48adca09b2e7969829f8033cbc91242d04"
 dut = "6c5a19572e1c3fe59bcf248d6133d2f56b5357bf6bde73d64e4c6c3828791a89"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.admittance_imag_s]
@@ -949,6 +970,9 @@ unit = "V"
 value = 22614926.45353059
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+transient = "b7cc8a5bc3e9fd2e2f4359bd4f1260d2223bb1b998151b27322482c271e933f9"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -961,7 +985,7 @@ unit = "ohm"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -972,7 +996,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -985,7 +1009,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -998,7 +1022,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -1012,7 +1036,7 @@ grid_subdivision = 2
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -1022,7 +1046,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 4
+threads = 2
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-res-models"
 timeout_seconds = 900
 

tasks/ihp-sg13g2/analog-db/cases/ia_003_fan_chopper_pf/materials/testbench.spice

@@ -30,7 +30,6 @@ VCN3 clk_chpf_not 0 pulse(1.2 0 0 50n 50n 99.95u 200u)
 XD inp inn outp outn ref clk_chin clk_chin_not clk_chfb clk_chfb_not clk_chout clk_chout_not clk_chpf clk_chpf_not vdd 0 vb1 vb2 vb3 vb4 inch_p inch_n fbch_p fbch_n g2_p g2_n vsum_p vsum_n pfch_p pfch_n ia_003_fan_chopper_pf
 .control
 set noaskquit
-set num_threads=1
 set numdgt=15
 save v(inp) v(inn) v(outp) v(outn) v(clk_chin) v(clk_chin_not) i(VP) i(VN) i(VDD) v(inch_p) v(inch_n) v(fbch_p) v(fbch_n) v(g2_p) v(g2_n) v(vsum_p) v(vsum_n) v(pfch_p) v(pfch_n) v(vdd) v(vb1) v(vb2) v(vb3) v(vb4) v(ref) v(freq) v(amp) i(VREF) i(VB1) i(VB2) i(VB3) i(VB4) i(VC0) i(VCN0) v(clk_chfb) v(clk_chfb_not) i(VC1) i(VCN1) v(clk_chout) v(clk_chout_not) i(VC2) i(VCN2) v(clk_chpf) v(clk_chpf_not) i(VC3) i(VCN3)
 tran 200n 40m 0 200n

tasks/ihp-sg13g2/analog-db/cases/ia_003_fan_chopper_pf/problem.md

@@ -6,10 +6,10 @@ Implement the supplied 47 MOS, 2 R, 8 C circuit. Preserve the running input, fee
 
 ## Inputs and Interface
 
-- `problem.md`: description input.
-- `materials/circuit.cdl`: netlist input.
-- `materials/circuit.spice`: simulation input.
-- `materials/testbench.spice`: performance input.
+- `problem.md`: task description.
+- `materials/circuit.cdl`: physical netlist.
+- `materials/circuit.spice`: simulation circuit.
+- `materials/testbench.spice`: performance tests.
 
 Ordered ports: `vinp vinn voutp voutn vref clk_chin clk_chin_not clk_chfb clk_chfb_not clk_chout clk_chout_not clk_chpf clk_chpf_not vdd vss vb1 vb2 vb3 vb4 inch_p inch_n fbch_p fbch_n g2_p g2_n vsum_p vsum_n pfch_p pfch_n`. Preserve these named connections.
 
@@ -17,17 +17,13 @@ The CDL and simulator netlist are equivalent physical representations. Use their
 
 ## Operating Conditions
 
-TT, 27 C, VDD=1.2 V, input common mode and vref=0.6 V; vb1/vb2/vb3/vb4=0.5/0.75/0.45/0.55 V. Each complementary clock pair runs synchronously at 5 kHz with 50 ns rise/fall, 99.95 us pulse width and 200 us period. All positive phases align. Differential sinusoidal input is 10 mV peak at 100 and 200 Hz; load is 50 fF per output. Maximum timestep is 200 ns with adaptive edge resolution. The test runs 40 ms; 0–20 ms is discarded. The 20–40 ms observation spans 100 chop cycles and two/four signal cycles. Adjacent 20–30/30–40 ms windows report transfer variation. This is a finite-window observation of the full clocked circuit, not a claim of asymptotic periodic stability.
+TT, 27 C, VDD=1.2 V, input common mode and vref=0.6 V; vb1/vb2/vb3/vb4=0.5/0.75/0.45/0.55 V. Complementary clocks are synchronized at 5 kHz with 50 ns edges, 99.95 us pulse width and 200 us period; positive phases are aligned. Differential sine peak is 10 mV at 100/200 Hz, with 50 fF per output. Maximum step 200 ns adaptively resolves edges. Simulate 40 ms, discard the first 20 ms; 20–40 ms spans 100 chopping periods and 2/4 signal periods, and subwindows 20–30/30–40 ms compare transfer changes. Finite windows do not prove asymptotic periodic stability.
 
 ## Physical Requirements
 
-Submit a nonempty GDSII of at most 10485760 bytes.
-Native IHP DRC and named-interface LVS must pass without waivers. The functional bounding rectangle includes device, well, contact and complete routing layers, excluding annotations, and must fit 5000 by 1000 um. Native physical taps and all passive units are part of the contract.
+Submit nonempty GDSII of at most 10485760 bytes. Pass native IHP DRC and named-interface LVS without waivers. Functional bounds include devices, wells, contacts and all routing layers, excluding annotations, and are at most 5000 × 1000 um. Retain native physical contacts and all passive cells.
 
-Magic extracts candidate interconnect resistance/capacitance and device
-junction geometry. Wells/substrate are connected to physical tap rails; source
-simulation retains finite tap models. Distributed substrate, statistical
-mismatch and manufacturing signoff are outside this nominal contract.
+Magic extracts candidate interconnect RC and device junction geometry. Wells/substrate connect to physical-contact supply rails; source simulation retains finite contact models. The nominal contract excludes distributed substrate effects, statistical mismatch and manufacturing signoff.
 
 The scored functional layer/datatype pairs are `[[1, 0], [3, 0], [5, 0], [6, 0], [7, 0], [8, 0], [10, 0], [11, 0], [13, 0], [14, 0], [19, 0], [24, 0], [26, 0], [28, 0], [29, 0], [30, 0], [31, 0], [32, 0], [33, 0], [35, 0], [36, 0], [40, 0], [44, 0], [46, 0], [49, 0], [50, 0], [51, 0], [52, 0], [53, 0], [55, 0], [58, 0], [66, 0], [67, 0], [90, 0], [101, 0], [111, 0], [125, 0], [126, 0], [128, 0], [129, 0], [133, 0], [134, 0], [139, 0], [152, 0]]`.
 
@@ -35,36 +31,23 @@ The scored functional layer/datatype pairs are `[[1, 0], [3, 0], [5, 0], [6, 0],
 
 Use the supplied transient testbench on the extracted candidate. Time-weighted sine/cosine integrals give complex differential transfer and input admittance. Full-precision cumulative integrals at the 20/30/40 ms clock breakpoints avoid cancellation of rounded measurement averages. The summed endpoint error must not exceed 1 ps; this is measurement validity, not a circuit performance gate. Input impedance is the magnitude of differential voltage divided by differential source current, where input current is -(i(VP)-i(VN))/2. Residual RMS removes the measured DC and fundamental; full output peak-to-peak also includes signal and all ripple. It must not be represented as switching ripple alone. Input and feedback and positive-feedback modulation errors compare clock-demodulated branch voltages to the associated external signals. Raw monitor waveforms support independent checking of the switching paths. Ordinary DC/AC does not replace these measurements.
 
-Every measurement must be finite. Magnitudes, RMS values and total consumed supply/clock power have nonnegative physical domains. No paper gain, input-impedance boost or ripple specification is a hard gate. Slow common-mode excursions and finite-window variation are reported and scored, not suppressed with a CMFB. The source uses the identical physical devices, clocks, loads and observation windows in an independent simulation. No PAC/PNoise, PSS, noise, mismatch, PVT or supply-startup capability is claimed.
+All measurements must be finite; amplitudes, RMS and total supply/clock consumption power must be nonnegative. Paper gain, input-impedance enhancement and ripple specifications are not hard thresholds. Slow common-mode variation and differences between windows are reported and scored without added CMFB suppression; independent source simulation uses the same devices, clocks, loads and windows. No PAC/PNoise, PSS, noise, mismatch, PVT or power-up startup capability is claimed.
 
 Area quality is Q=73567.47 um2/functional area. The compact estimate sums MOS (W+2.4)(L+2.4), a 3.2² local tap envelope per MOS and one global tap, each MIM (side+2.4)², and forty (.5+2.4)(84.45+2.4) resistor envelopes per bias arm, then adds 50% routing allowance. It is independent of the witness. Gain and input-impedance magnitudes use source ratios; phase is diagnostic to avoid angular-wrap scoring; residual and window variation use inverse ratios with 1 uV floor; output bias uses 1.2 V target scale; power uses inverse ratios with 1 pW floor. Other observations are diagnostics. Coefficient 9 reflects interacting positive/negative signal feedback and impedance control under clock modulation; no common-mode regulation is assumed.
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-| Metric | Definition / observation | Unit | Quality / dimension | Functional bounds | Scale |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+`residual_rms_v`, `window_change_v` use `saturating_ratio`: q = 2(b+s)/(b+x+2s), where x is candidate error, b is paired source error and s is the positive scale below. Source equivalence gives q=1; improvement approaches the upper limit 2 with diminishing returns. The scale retains its declared unit and numerical-floor meaning. Normalize each condition before taking the worst quality; other rules follow their declarations.
+
+| Metric | Definition / observation | Unit | Quality / dimension | Functional range | Scale |
 | --- | --- | --- | --- | --- | --- |
 | `functional_area` | Functional bounding-rectangle area | um2 | area quality Q | positive area | — |
 | `gain_vv` | `2*sqrt(dsmean^2+dcmean^2)/amplitude` | V/V | maximize / ratio / response | 0 … +∞ | 1e-12 |
@@ -73,12 +56,12 @@ can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
 | `admittance_real_s` | `-2*ismean/amplitude` | S | diagnostic | −∞ … +∞ | — |
 | `admittance_imag_s` | `-2*icmean/amplitude` | S | diagnostic | −∞ … +∞ | — |
 | `dm_mean_v` | `avg dm from=20m to=40m` | V | target / target / bias | −∞ … +∞ | 1.2 |
-| `residual_rms_v` | `rms residual from=20m to=40m` | V | minimize / ratio / response | 0 … +∞ | 1e-06 |
+| `residual_rms_v` | `rms residual from=20m to=40m` | V | minimize / saturating_ratio / response | 0 … +∞ | 1e-06 |
 | `ripple_pp_v` | `pp dm from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `cm_mean_v` | `avg cm from=20m to=40m` | V | target / target / bias | −∞ … +∞ | 1.2 |
 | `cm_min_v` | `min cm from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `cm_max_v` | `max cm from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
-| `window_change_v` | `2*sqrt((dsfirst-dslast)^2+(dcfirst-dclast)^2)` | V | minimize / ratio / response | 0 … +∞ | 1e-06 |
+| `window_change_v` | `2*sqrt((dsfirst-dslast)^2+(dcfirst-dclast)^2)` | V | minimize / saturating_ratio / response | 0 … +∞ | 1e-06 |
 | `modulation_error_rms_v` | `rms modulation_error from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `feedback_error_rms_v` | `rms feedback_error from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `power_w` | `avg supplied from=20m to=40m` | W | minimize / ratio / supply | 0 … +∞ | 1e-12 |
@@ -86,17 +69,11 @@ can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
 | `pf_error_rms_v` | `rms pf_error from=20m to=40m` | V | diagnostic | −∞ … +∞ | — |
 | `boundary_error_s` | `abs(time[i20]-20m)+abs(time[i30]-30m)+abs(time[i40]-40m)` | s | diagnostic | −∞ … +∞ | — |
 
-Apply each row to every declared load/tone condition. Pair each candidate
-observation with its `source_` job under the identical condition. The supplied
-deck defines intermediate vectors used in the expressions above.
-The 1 ps endpoint alignment check aborts simulation with a nonzero exit
-before invalid integrals are reported. Its residual is diagnostic; a failed
-validity check produces an evaluator error and unknown score, not electrical failure.
-
+Each row applies to every declared load/frequency condition; pair the candidate with `source_` under matching conditions, and see the deck for intermediate vectors. Failed 1 ps endpoint-alignment checks terminate simulation with nonzero exit status before emitting invalid integrals; residuals are diagnostic only. Failure is an evaluation error with unknown score, not electrical functional rejection.
 
 ### Score weights
 
-Clocked instrumentation amplifiers: signal fidelity 31.3%; drift and ripple 19.6%; input impedance 15.7%; common-mode behavior 15.7%; supply and clock power 7.83%; area 10%. Each objective's weight is divided equally among its metrics.
+Clocked instrumentation amplifier: signal fidelity 31.3%, drift and ripple 19.6%, input impedance 15.7%, common-mode behavior 15.7%, supply and clock power 7.83%, area 10%; each objective weight is divided equally among its metrics.
 
 | Metric | Weight |
 | --- | ---: |
@@ -116,8 +93,4 @@ Solve budget: **10 hours**.
 
 Submit GDS top cell ia_003_fan_chopper_pf. Evaluation runs native DRC/LVS, geometry, Magic candidate-derived RC extraction and ngspice transient measurement using reviewed resources. Reference materials and source checkouts are not solver inputs.
 
-Discover the frozen task, resources and submission interface through
-`/protocol/task.json`, `/protocol/resources.json` and `/protocol/harness.json`.
-Declared inputs are under `/task`. Write `/workspace/output/final.gds`
-and explicitly submit with `python -I /protocol/submit.py`. Creating the file
-alone does not submit it. Only feedback supported by the active harness is available.
+Discover the frozen task, resources and submission interface through `/protocol/task.json`, `/protocol/resources.json` and `/protocol/harness.json`. Declared inputs are in `/task`. Write `/workspace/output/final.gds`, then run `python -I /protocol/submit.py` to submit explicitly; file generation alone is not submission. Feedback follows the capabilities provided by the current runtime protocol.

tasks/ihp-sg13g2/analog-db/cases/ia_006_fan_chopper_cmfb/case.toml

@@ -1,15 +1,15 @@
-in_core = true
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.ia_006_fan_chopper_cmfb"
 title = "Clocked Capacitive Instrumentation Amplifier with Transistor CMFB"
 status = "qualified"
+in_core = true
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "97aae229973d854761b68d388b36520c9d93484af6e01a39411b3d475efbcf7c"
+sha256 = "dd1784a44dd746072be5b93a7165da1eef226a10750bddee28f2900b8e8382c3"
 
 [[assets]]
 path = "reference/ia_006_fan_chopper_cmfb.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-ia_006_fan_chopper_cmfb-nominal-rc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "df9fbcf14f7a39ad4f7ae0834d24f5170f5577bae98d9947a408bbf96cd33073"
+sha256 = "15d2de9e237cc6ac08b57c5e41efcacf0bb9d62b399300df393b9435ea2f5164"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "e5049836e133e951c36c34dd5eed0fe1c2492f1671930153c97cf4ccae786f1d"
 subcircuit = "ia_006_fan_chopper_cmfb"
+sha256 = "e5049836e133e951c36c34dd5eed0fe1c2492f1671930153c97cf4ccae786f1d"
 
 [task.inputs.performance]
 path = "materials/testbench.spice"
@@ -46,6 +46,11 @@ path = "materials/circuit.spice"
 format = "spice"
 sha256 = "0bcfd15c384f9f2a804e139cf1b9da63ae8915d6cc857b8001cc07c85630968c"
 
+[task.inputs.cm_disturbance]
+path = "materials/cm_disturbance.spice"
+format = "spice"
+sha256 = "295c571a95fd08302ffdf52471f652113fe27911ae9aa39ff5b4fbe376cd9b78"
+
 [task.constraints]
 quality = [
     { id = "area", type = "functional_bbox_area", layers_from = "outline" },
@@ -247,25 +252,26 @@ mode = "post_layout"
 [task.evaluation.scoring]
 method = "layout"
 area_metric = "functional_area"
-area_target = 102216.79
-rationale = "Clocked instrumentation amplifiers: signal fidelity 37.9%; drift and ripple 23.7%; common-mode behavior 18.9%; supply and clock power 9.47%; area 10%. Each objective's weight is divided equally among its metrics."
+area_target = 40000.0
+rationale = "The 40000 um2 footprint carries 30%. Common-mode-to-differential rejection carries 20%, clock ripple RMS 15%, gain preservation and clock power 10% each, baseline/return error 5% each and supply power 5%. The 25 uV common-mode disturbance and 8 mV ripple goals are near source behavior; clock routing has a 1 nW goal. RMS ripple is the scored ripple measure; its peak-to-peak duplicate, drift and common-mode summaries remain diagnostics. All clock pairs continue switching in the existing fixture."
 
 [task.evaluation.scoring.weights]
-functional_area = 0.1
-baseline_error_v = 0.126315789472
-gain_vv = 0.126315789474
-return_error_v = 0.126315789474
-high_drift_v = 0.059210526316
-return_drift_v = 0.059210526316
-ripple_pp_v = 0.059210526316
-ripple_rms_v = 0.059210526316
-cm_max_v = 0.037894736842
-cm_mean_v = 0.037894736842
-cm_min_v = 0.037894736842
-sum_cm_v = 0.037894736842
-sum_error_v = 0.037894736842
-clock_power_w = 0.047368421053
-mean_power_w = 0.047368421053
+functional_area = 0.3
+baseline_error_v = 0.05
+gain_vv = 0.1
+return_error_v = 0.05
+high_drift_v = 0.0
+return_drift_v = 0.0
+ripple_pp_v = 0.0
+ripple_rms_v = 0.15
+cm_max_v = 0.0
+cm_mean_v = 0.0
+cm_min_v = 0.0
+sum_cm_v = 0.0
+sum_error_v = 0.0
+clock_power_w = 0.1
+mean_power_w = 0.05
+cm_to_dm_peak_v = 0.2
 
 [[task.evaluation.jobs]]
 id = "artifact"
@@ -534,6 +540,50 @@ clock_power_w = "W"
 op = "op.raw"
 transient = "transient.raw"
 
+[[task.evaluation.jobs]]
+id = "cm_disturbance_0"
+stage = "simulate"
+operation = "circuit.simulate"
+
+[task.evaluation.jobs.inputs]
+deck = "input:cm_disturbance"
+dut = "job:parasitics:netlist"
+
+[task.evaluation.jobs.outputs]
+transient = "ngspice-raw"
+
+[task.evaluation.jobs.parameters.values]
+load_f = 1e-12
+
+[task.evaluation.jobs.parameters.measurements]
+cm_baseline_v = "V"
+cm_to_dm_peak_v = "V"
+
+[task.evaluation.jobs.parameters.exports]
+transient = "transient.raw"
+
+[[task.evaluation.jobs]]
+id = "cm_disturbance_1"
+stage = "simulate"
+operation = "circuit.simulate"
+
+[task.evaluation.jobs.inputs]
+deck = "input:cm_disturbance"
+dut = "job:parasitics:netlist"
+
+[task.evaluation.jobs.outputs]
+transient = "ngspice-raw"
+
+[task.evaluation.jobs.parameters.values]
+load_f = 5e-12
+
+[task.evaluation.jobs.parameters.measurements]
+cm_baseline_v = "V"
+cm_to_dm_peak_v = "V"
+
+[task.evaluation.jobs.parameters.exports]
+transient = "transient.raw"
+
 [[task.evaluation.metrics]]
 id = "functional_area"
 category = "physical"
@@ -564,7 +614,7 @@ baseline = [
     "source_condition_3:gain_vv",
 ]
 normalization = "target"
-scale = 1.0
+scale = 0.2
 
 [[task.evaluation.metrics]]
 id = "baseline_error_v"
@@ -585,9 +635,16 @@ baseline = [
     "source_condition_2:baseline_error_v",
     "source_condition_3:baseline_error_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 1e-07
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 1e-06
+rationale = "Aim for at most 1 uV differential baseline error in the declared pre-step window."
 
 [[task.evaluation.metrics]]
 id = "return_error_v"
@@ -608,9 +665,16 @@ baseline = [
     "source_condition_2:return_error_v",
     "source_condition_3:return_error_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 1e-07
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 1e-06
+rationale = "Aim for at most 1 uV differential error after the input returns."
 
 [[task.evaluation.metrics]]
 id = "high_drift_v"
@@ -631,10 +695,13 @@ baseline = [
     "source_condition_2:high_drift_v",
     "source_condition_3:high_drift_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "return_drift_v"
 category = "performance"
@@ -654,10 +721,13 @@ baseline = [
     "source_condition_2:return_drift_v",
     "source_condition_3:return_drift_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "ripple_rms_v"
 category = "performance"
@@ -677,9 +747,16 @@ baseline = [
     "source_condition_2:ripple_rms_v",
     "source_condition_3:ripple_rms_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 0.001
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 0.008
+rationale = "Aim for at most 8 mV output ripple RMS over the declared integer-cycle settled window."
 
 [[task.evaluation.metrics]]
 id = "ripple_pp_v"
@@ -700,10 +777,13 @@ baseline = [
     "source_condition_2:ripple_pp_v",
     "source_condition_3:ripple_pp_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "cm_mean_v"
 category = "performance"
@@ -725,8 +805,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.2
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.2
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "cm_min_v"
@@ -749,8 +832,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.2
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.2
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "cm_max_v"
@@ -773,8 +859,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.2
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.2
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "sum_cm_v"
@@ -797,8 +886,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.2
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.2
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "sum_error_v"
@@ -819,10 +911,13 @@ baseline = [
     "source_condition_2:sum_error_v",
     "source_condition_3:sum_error_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "mean_power_w"
 category = "performance"
@@ -843,9 +938,12 @@ baseline = [
     "source_condition_3:mean_power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "clock_power_w"
 category = "performance"
@@ -866,9 +964,16 @@ baseline = [
     "source_condition_3:clock_power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
+[task.evaluation.metrics.quality_target]
+value = 1e-09
+rationale = "Aim for at most 1 nW mean power from the declared 20 kHz clock sources, including extracted clock routing."
+
 [[task.evaluation.metrics]]
 id = "dc_cm_v"
 category = "performance"
@@ -947,11 +1052,37 @@ unit = "W"
 direction = "maximize"
 aggregation = "max"
 
+[[task.evaluation.metrics]]
+id = "cm_to_dm_peak_v"
+category = "performance"
+observations = [
+    "cm_disturbance_0:cm_to_dm_peak_v",
+    "cm_disturbance_1:cm_to_dm_peak_v",
+]
+baseline = [
+    "source_cm_disturbance_0:cm_to_dm_peak_v",
+    "source_cm_disturbance_1:cm_to_dm_peak_v",
+]
+unit = "V"
+dimension = "response"
+direction = "minimize"
+aggregation = "max"
+normalization = "saturating_ratio"
+scale = 5e-06
+
+[task.evaluation.metrics.requirement]
+lower = 0.0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 2.5e-05
+rationale = "Aim for at most 25 uV differential output disturbance during the declared 10 mV common-mode pulse at either load."
+
 [task.evaluation.pre_layout]
-source_report_sha256 = "0dc6d5b91380e5ccfe570c62ccc7e96b3ade6b747046cab58f10c6ea58ae9dee"
+source_report_sha256 = "f9c80e99432c9fa7f0f9cb756bdbdf85fcfc868a934bfa6fe06f40e96b4fd413"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:34eff92f7ffca7b8b010bcded394c4625c14143c757fda519e873b7ef8e87dc5\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"52f1bcb503b57feb49f305f7318b648c611100d7f294d4656525ac29bcdaddd7\", \"timeout_seconds\": 900.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 900.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -1078,6 +1209,10 @@ unit = "V"
 value = 6.755444e-05
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+op = "ca1b237f86d5c0d8052759a66191a810f9e907e9f943fafba2f78f8d618a0a1d"
+transient = "13aac9464072ddfd9937213d0c6d63867518fe0888caf26ba527374ae3631f42"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -1203,6 +1338,10 @@ unit = "V"
 value = 6.755779e-05
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+op = "ca1b237f86d5c0d8052759a66191a810f9e907e9f943fafba2f78f8d618a0a1d"
+transient = "c8528ed70511b670ebb25200f86e5a6391becc275de61955f19b9dcd3b7e520e"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -1328,6 +1467,10 @@ unit = "V"
 value = 6.719163e-05
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+op = "ca1b237f86d5c0d8052759a66191a810f9e907e9f943fafba2f78f8d618a0a1d"
+transient = "b7b1d9b39da81e1d6876e36bd1aac5ea1032a4085c9e320267d456f7280236b5"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -1453,6 +1596,80 @@ unit = "V"
 value = 6.719459e-05
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+op = "ca1b237f86d5c0d8052759a66191a810f9e907e9f943fafba2f78f8d618a0a1d"
+transient = "8bd25fedaae0f50fa6f18bb22df3d075b633c174ec3d26a9e04362067c0083ed"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0]
+operation = "circuit.simulate"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.inputs]
+deck = "input:cm_disturbance"
+dut = "input:simulation"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.outputs]
+transient = "ngspice-raw"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.parameters.values]
+load_f = 1e-12
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.parameters.measurements]
+cm_baseline_v = "V"
+cm_to_dm_peak_v = "V"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.parameters.exports]
+transient = "transient.raw"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.input_sha256]
+deck = "295c571a95fd08302ffdf52471f652113fe27911ae9aa39ff5b4fbe376cd9b78"
+dut = "0bcfd15c384f9f2a804e139cf1b9da63ae8915d6cc857b8001cc07c85630968c"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.measurements.cm_baseline_v]
+value = -5.085304e-08
+unit = "V"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.measurements.cm_to_dm_peak_v]
+value = 2.43718e-05
+unit = "V"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_0.output_sha256]
+transient = "bab66a709be6a56bc60ea396118b60b682c81f31024c31c43e300a9f3f175d00"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1]
+operation = "circuit.simulate"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.inputs]
+deck = "input:cm_disturbance"
+dut = "input:simulation"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.outputs]
+transient = "ngspice-raw"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.parameters.values]
+load_f = 5e-12
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.parameters.measurements]
+cm_baseline_v = "V"
+cm_to_dm_peak_v = "V"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.parameters.exports]
+transient = "transient.raw"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.input_sha256]
+deck = "295c571a95fd08302ffdf52471f652113fe27911ae9aa39ff5b4fbe376cd9b78"
+dut = "0bcfd15c384f9f2a804e139cf1b9da63ae8915d6cc857b8001cc07c85630968c"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.measurements.cm_baseline_v]
+value = -5.055303e-08
+unit = "V"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.measurements.cm_to_dm_peak_v]
+value = 2.369296e-05
+unit = "V"
+
+[task.evaluation.pre_layout.jobs.source_cm_disturbance_1.output_sha256]
+transient = "0e9a66f4141e8e0ee6ceb5968e68fe1e8045785d99e433cba6c8e1d4b9219c33"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -1465,7 +1682,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -1476,7 +1693,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -1489,7 +1706,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -1502,7 +1719,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -1516,7 +1733,7 @@ grid_subdivision = 2
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -1526,7 +1743,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-res-models"
 timeout_seconds = 900
 

tasks/ihp-sg13g2/analog-db/cases/ia_006_fan_chopper_cmfb/materials/cm_disturbance.spice

@@ -0,0 +1,87 @@
+* Native clocked IA transfer, ripple and recovery. SPDX-License-Identifier: MIT
+.lib /workspace/support/models/cornerMOSlv.lib mos_tt
+.lib /workspace/support/models/cornerCAP.lib cap_typ
+.lib /workspace/support/models/cornerRES.lib res_typ
+.include parameters.spice
+.include dut.spice
+.temp 27
+.option klu rshunt=1e13 reltol=1e-5 abstol=1e-13 vntol=1e-8 method=gear maxord=2
+VDD vdd 0 1.2
+VIP vinp 0 dc .6 pulse(.6 .61 500u 1u 1u 500u 10m)
+VIN vinn 0 dc .6 pulse(.6 .61 500u 1u 1u 500u 10m)
+VR vref 0 .6
+V1 core__vb1 0 .5
+V2 core__vb2 0 .75
+V3 core__vb3 0 .45
+V4 core__vb4 0 .589
+VCMR vref_cm 0 .6
+CLP voutp 0 {load_f}
+CLN voutn 0 {load_f}
+Vclk_chin clk_chin 0 pulse(1.2 0 25u 50n 50n 24.95u 50u)
+Vclk_chin_not clk_chin_not 0 pulse(0 1.2 25u 50n 50n 24.95u 50u)
+Vclk_chfb clk_chfb 0 pulse(1.2 0 25u 50n 50n 24.95u 50u)
+Vclk_chfb_not clk_chfb_not 0 pulse(0 1.2 25u 50n 50n 24.95u 50u)
+Vclk_chout clk_chout 0 pulse(1.2 0 25u 50n 50n 24.95u 50u)
+Vclk_chout_not clk_chout_not 0 pulse(0 1.2 25u 50n 50n 24.95u 50u)
+XDUT vinp vinn voutp voutn vref clk_chin clk_chin_not clk_chfb clk_chfb_not clk_chout clk_chout_not vdd 0 core__vb1 core__vb2 core__vb3 core__vb4 vref_cm monp monn ia_006_fan_chopper_cmfb
+.control
+set numdgt=12
+set noaskquit
+save v(voutp) v(voutn) v(vinp) v(vinn) v(monp) v(monn) i(VDD) v(clk_chin) i(Vclk_chin) v(clk_chin_not) i(Vclk_chin_not) v(clk_chfb) i(Vclk_chfb) v(clk_chfb_not) i(Vclk_chfb_not) v(clk_chout) i(Vclk_chout) v(clk_chout_not) i(Vclk_chout_not)
+op
+let dc_cm_v=(v(voutp)+v(voutn))/2
+let dc_dm_v=v(voutp)-v(voutn)
+let dc_power_w=-1.2*i(VDD)
+print dc_cm_v dc_dm_v dc_power_w
+write op.raw v(voutp) v(voutn) v(monp) v(monn) i(VDD)
+tran 500n 1.5m 0 500n
+let dm=v(voutp)-v(voutn)
+let cm=(v(voutp)+v(voutn))/2
+meas tran cm_baseline_v avg dm from=400u to=500u
+let cm_diff_error=abs(dm-cm_baseline_v)
+meas tran cm_to_dm_peak_v max cm_diff_error from=900u to=1m
+let sum_cm=(v(monp)+v(monn))/2
+let sum_demod=(v(monp)-v(monn))*(v(clk_chin)/.6-1)
+let power=-1.2*i(VDD)
+meas tran baseline_v avg dm from=400u to=500u
+meas tran plateau_v avg dm from=900u to=1m
+meas tran return_v avg dm from=1.4m to=1.5m
+meas tran command_v avg v(vinp) from=900u to=1m
+let gain_vv=(plateau_v-baseline_v)/(2*(command_v-.6))
+let baseline_error_v=abs(baseline_v)
+let return_error_v=abs(return_v-baseline_v)
+print gain_vv baseline_error_v return_error_v
+meas tran high_first avg dm from=900u to=950u
+meas tran high_second avg dm from=950u to=1m
+meas tran return_first avg dm from=1.4m to=1.45m
+meas tran return_second avg dm from=1.45m to=1.5m
+let high_drift_v=abs(high_second-high_first)
+let return_drift_v=abs(return_second-return_first)
+print high_drift_v return_drift_v
+let ripple_sq=(dm-plateau_v)^2
+meas tran ripple_ms avg ripple_sq from=900u to=1m
+meas tran ripple_max max dm from=900u to=1m
+meas tran ripple_min min dm from=900u to=1m
+let ripple_rms_v=sqrt(ripple_ms)
+let ripple_pp_v=ripple_max-ripple_min
+print ripple_rms_v ripple_pp_v
+meas tran cm_mean_v avg cm from=900u to=1m
+meas tran cm_min_v min cm from=400u to=1.5m
+meas tran cm_max_v max cm from=400u to=1.5m
+meas tran sum_cm_v avg sum_cm from=900u to=1m
+meas tran sum_error_signed_v avg sum_demod from=900u to=1m
+let sum_error_v=abs(sum_error_signed_v)
+print sum_error_v
+meas tran mean_power_w avg power from=400u to=1.5m
+let supplied0=-v(clk_chin)*i(Vclk_chin)
+let supplied1=-v(clk_chin_not)*i(Vclk_chin_not)
+let supplied2=-v(clk_chfb)*i(Vclk_chfb)
+let supplied3=-v(clk_chfb_not)*i(Vclk_chfb_not)
+let supplied4=-v(clk_chout)*i(Vclk_chout)
+let supplied5=-v(clk_chout_not)*i(Vclk_chout_not)
+let positive_clock_power=(supplied0+abs(supplied0))/2+(supplied1+abs(supplied1))/2+(supplied2+abs(supplied2))/2+(supplied3+abs(supplied3))/2+(supplied4+abs(supplied4))/2+(supplied5+abs(supplied5))/2
+meas tran clock_power_w avg positive_clock_power from=900u to=1m
+write transient.raw v(voutp) v(voutn) v(vinp) v(vinn) v(monp) v(monn) i(VDD) v(clk_chin) i(Vclk_chin) v(clk_chin_not) i(Vclk_chin_not) v(clk_chfb) i(Vclk_chfb) v(clk_chfb_not) i(Vclk_chfb_not) v(clk_chout) i(Vclk_chout) v(clk_chout_not) i(Vclk_chout_not)
+quit
+.endc
+.end

tasks/ihp-sg13g2/analog-db/cases/ia_006_fan_chopper_cmfb/problem.md

@@ -65,8 +65,7 @@ differential-feedback servo. Each output has a 1 pF or 5 pF external load.
 At each load, run both signs of a 10 mV differential input step: four conditions.
 
 The input common mode stays at 0.6 V. Both inputs initially equal 0.6 V.
-During 500–501 us they move to `0.6+step_v/2` and `0.6-step_v/2`, hold
-for 500 us, then return during 1001–1002 us. `step_v` is +0.01 or −0.01 V.
+In the differential-response suite, VINP and VINN move oppositely by ±5 mV during 500–501 us, hold for 500 us, then return during 1001–1002 us. A separate common-mode rejection suite holds the differential input at zero and moves both inputs together from 0.6 V to 0.61 V over 1 us at 500 us, holds through 1001 us and returns over 1 us. It runs at both 1 pF and 5 pF loads while all three clock pairs continue switching. The additional `cm_to_dm_peak_v` measurement is the maximum absolute differential output change from its 400–500 us pre-step baseline during 900 us–1 ms.
 The pulse period is 10 ms; only the finite 0–1.5 ms sequence is measured.
 
 All three true/complement clock pairs run synchronously at 20 kHz between
@@ -103,56 +102,35 @@ noise and manufacturing signoff are not qualified.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-Measurement definitions below use the supplied SPICE node/source names.
-`v(n)` is node voltage and `i(V)` is current into a voltage source; delivered
-power therefore uses a minus sign. `db(z)=20*log10(abs(z))`, `mag/abs`
-denote magnitude, and `cph` is continuous phase in radians. `find`, `when`,
-`from/to`, and `rise/fall` retain the deck's interpolation, window and
-crossing conventions; SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/
-milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv`
-mean the stated window average, extrema and sampled derivative. All
-declared conditions are measured separately and paired with the same
-source condition; a group uses its worst paired quality.
-
-| Metric | Definition / observations | Unit | Quality rule | Functional bounds | Scale | Dimension |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations remain required evidence. The explicit quality targets below supply scoring anchors; otherwise the paired source value is used. Reports retain every paired result.
+
+Let x be the post-layout measurement and b the declared quality target, or the same-condition source measurement when no target is declared:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_target / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Joint attainment of the electrical and area goals scores 100 points; a feasible reference may score far below 100, and better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+The measurements below use the supplied SPICE node and source names. `v(n)` is a node voltage; `i(V)` is current flowing into a voltage source, so delivered power uses a negative sign. `db(z)=20*log10(abs(z))`; `mag/abs` denote magnitude, and `cph` denotes continuous phase in radians. `find`, `when`, `from/to` and `rise/fall` follow the deck's interpolation, window and crossing conventions. SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv` represent window averages, extrema and sampled derivatives. Measure each operating condition independently, pair it with the source result under that condition, and take the worst paired quality within each metric group.
+
+For metrics declaring `saturating_ratio`, q = 2(b+s)/(b+x+2*s), using the quality anchor b and the positive scale s in the metric’s units. Equality to the anchor gives quality 1; improvements approach 2. Normalize each condition before selecting the worst quality. These scales and targets do not add acceptance cutoffs.
+
+| Metric | Definition / observation | Unit | Quality normalization | Functional range | Scale | Dimension |
 | --- | --- | --- | --- | --- | --- | --- |
-| `gain_vv` | Transient: `((avg (v(voutp)-v(voutn)) from=900u to=1m)-(avg (v(voutp)-v(voutn)) from=400u to=500u))/(2*((avg v(vinp) from=900u to=1m)-.6))`. | V/V | target / target | −∞ … +∞ | 1.0 | response |
-| `baseline_error_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=400u to=500u))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `return_error_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=1.4m to=1.5m)-(avg (v(voutp)-v(voutn)) from=400u to=500u))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `high_drift_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=950u to=1m)-(avg (v(voutp)-v(voutn)) from=900u to=950u))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `return_drift_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=1.45m to=1.5m)-(avg (v(voutp)-v(voutn)) from=1.4m to=1.45m))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `ripple_rms_v` | Transient: `sqrt((avg (((v(voutp)-v(voutn))-(avg (v(voutp)-v(voutn)) from=900u to=1m))^2) from=900u to=1m))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `ripple_pp_v` | Transient: `(max (v(voutp)-v(voutn)) from=900u to=1m)-(min (v(voutp)-v(voutn)) from=900u to=1m)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `gain_vv` | Transient: `((avg (v(voutp)-v(voutn)) from=900u to=1m)-(avg (v(voutp)-v(voutn)) from=400u to=500u))/(2*((avg v(vinp) from=900u to=1m)-.6))`. | V/V | target / target | −∞ … +∞ | 0.2 | response |
+| `baseline_error_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=400u to=500u))`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-07 | response |
+| `return_error_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=1.4m to=1.5m)-(avg (v(voutp)-v(voutn)) from=400u to=500u))`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-07 | response |
+| `high_drift_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=950u to=1m)-(avg (v(voutp)-v(voutn)) from=900u to=950u))`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `return_drift_v` | Transient: `abs((avg (v(voutp)-v(voutn)) from=1.45m to=1.5m)-(avg (v(voutp)-v(voutn)) from=1.4m to=1.45m))`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `ripple_rms_v` | Transient: `sqrt((avg (((v(voutp)-v(voutn))-(avg (v(voutp)-v(voutn)) from=900u to=1m))^2) from=900u to=1m))`. | V | minimize / saturating_ratio | 0 … +∞ | 0.001 | response |
+| `ripple_pp_v` | Transient: `(max (v(voutp)-v(voutn)) from=900u to=1m)-(min (v(voutp)-v(voutn)) from=900u to=1m)`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 | `cm_mean_v` | TRAN: Mean of `((v(voutp)+v(voutn))/2) from=900u to=1m`. | V | target / target | 0 … 1.2 | 1.2 | bias |
 | `cm_min_v` | TRAN: Minimum of `((v(voutp)+v(voutn))/2) from=400u to=1.5m`. | V | target / target | 0 … 1.2 | 1.2 | bias |
 | `cm_max_v` | TRAN: Maximum of `((v(voutp)+v(voutn))/2) from=400u to=1.5m`. | V | target / target | 0 … 1.2 | 1.2 | bias |
 | `sum_cm_v` | TRAN: Mean of `((v(monp)+v(monn))/2) from=900u to=1m`. | V | target / target | 0 … 1.2 | 1.2 | bias |
-| `sum_error_v` | Transient: `abs((avg ((v(monp)-v(monn))*(v(clk_chin)/.6-1)) from=900u to=1m))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `sum_error_v` | Transient: `abs((avg ((v(monp)-v(monn))*(v(clk_chin)/.6-1)) from=900u to=1m))`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `cm_to_dm_peak_v` | Maximum `abs((v(voutp)-v(voutn))-baseline)` from 900 us to 1 ms after both inputs step 0.6→0.61 V; both clock polarities active; 1 pF and 5 pF output loads | V | minimize / saturating_ratio | 0 … +∞ | 5e-06 | response |
 | `mean_power_w` | TRAN: Mean of `(-1.2*i(VDD)) from=400u to=1.5m`. | W | minimize / ratio | 0 … +∞ | 1e-12 | supply |
 | `clock_power_w` | Mean sum of positive delivered power from all six chopper clock sources over 900 us–1 ms; negative (returned) power from each source is clipped to zero before summation. | W | minimize / ratio | 0 … +∞ | 1e-12 | supply |
 | `dc_cm_v` | DC operating point: `(v(voutp)+v(voutn))/2`. | V | diagnostic | −∞ … +∞ | — | unscored diagnostic |
@@ -162,33 +140,30 @@ source condition; a group uses its worst paired quality.
 | `return_v` | TRAN: Mean of `(v(voutp)-v(voutn)) from=1.4m to=1.5m`. | V | diagnostic | −∞ … +∞ | — | unscored diagnostic |
 | `dc_power_w` | DC operating point: `-1.2*i(VDD)`. | W | diagnostic | −∞ … +∞ | — | unscored diagnostic |
 
-Area reference: **102216.79 um2**. 166 expanded device instances; sum of device/contact envelopes 67727.1707 um2, per-side envelope allowance 0.6 um, 50% routing allowance and total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across two opposite sides; the envelope sum is displayed rounded to four decimals. MOS/passive envelopes use declared W/L (or resistor dimensions) and multiplicity; explicit tap areas and HBT emitter/contact envelopes are included. This is a frozen engineering estimate, not a foundry minimum or a feasibility claim.
 
 The capability coefficient remains **10**; it is independent of
 the reference-relative task score.
 
+### Quality targets and weights
+
+The area quality target is **40000 um2**, independent of the current feasibility witness. It is not a hard area limit or a process minimum.
+
+The 40000 um2 footprint carries 30%. Common-mode-to-differential rejection carries 20%, clock ripple RMS 15%, gain preservation and clock power 10% each, baseline/return error 5% each and supply power 5%. The 25 uV common-mode disturbance and 8 mV ripple goals are near source behavior; clock routing has a 1 nW goal. RMS ripple is the scored ripple measure; its peak-to-peak duplicate, drift and common-mode summaries remain diagnostics. All clock pairs continue switching in the existing fixture.
+
+| Metric | Quality anchor | Unit | Scale | Weight |
+| --- | --- | --- | --- | ---: |
+| `functional_area` | 40000 | um2 | — | 0.3 |
+| `baseline_error_v` | 1e-06 | V | 1e-07 | 0.05 |
+| `gain_vv` | paired source | V/V | 0.2 | 0.1 |
+| `return_error_v` | 1e-06 | V | 1e-07 | 0.05 |
+| `ripple_rms_v` | 0.008 | V | 0.001 | 0.15 |
+| `clock_power_w` | 1e-09 | W | 1e-12 | 0.1 |
+| `mean_power_w` | paired source | W | 1e-12 | 0.05 |
+| `cm_to_dm_peak_v` | 2.5e-05 | V | 5e-06 | 0.2 |
+
+Zero-weight paired diagnostics: `high_drift_v`, `return_drift_v`, `ripple_pp_v`, `cm_max_v`, `cm_mean_v`, `cm_min_v`, `sum_cm_v`, `sum_error_v`. All unweighted measurements and functional requirements remain checked.
 
-### Score weights
-
-Clocked instrumentation amplifiers: signal fidelity 37.9%; drift and ripple 23.7%; common-mode behavior 18.9%; supply and clock power 9.47%; area 10%. Each objective's weight is divided equally among its metrics.
-
-| Metric | Weight |
-| --- | ---: |
-| `functional_area` | 0.1 |
-| `baseline_error_v` | 0.126315789472 |
-| `gain_vv` | 0.126315789474 |
-| `return_error_v` | 0.126315789474 |
-| `high_drift_v` | 0.059210526316 |
-| `return_drift_v` | 0.059210526316 |
-| `ripple_pp_v` | 0.059210526316 |
-| `ripple_rms_v` | 0.059210526316 |
-| `cm_max_v` | 0.037894736842 |
-| `cm_mean_v` | 0.037894736842 |
-| `cm_min_v` | 0.037894736842 |
-| `sum_cm_v` | 0.037894736842 |
-| `sum_error_v` | 0.037894736842 |
-| `clock_power_w` | 0.047368421053 |
-| `mean_power_w` | 0.047368421053 |
+The targets above affect continuous quality only. A complete feasible reference is allowed to miss them; there is no minimum qualifying score.
 
 ## Tools and Submission
 

tasks/ihp-sg13g2/analog-db/cases/ldo_001_analoggym_basic/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.ldo_001_analoggym_basic"
 title = "Multistage Error-Amplifier PMOS Regulator"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "860f3660d4f3b4539be4bb5a6049aca13c06e32b029f0a1196b3410971f34c09"
+sha256 = "6acb6ca3b7332133b475e3ebdb38230c8c2607e353821bdd7e8e6c0e1c7caaee"
 
 [[assets]]
 path = "reference/ldo_001_analoggym_basic.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-ldo_001_analoggym_basic-nominal-rc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "746049248099678645eb61767da0158b9bb407a74da57666677685279397c80b"
+sha256 = "e7e9535ed99e956fd8a7ab21aa05ce5187394c0e6e85fb9693497974fba55647"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "eebb188d9aa510eb1d03395ad2a4fe8b12ca6e4e16d4172dbd4d72bad3d0d79b"
 subcircuit = "ldo_001_analoggym_basic"
+sha256 = "eebb188d9aa510eb1d03395ad2a4fe8b12ca6e4e16d4172dbd4d72bad3d0d79b"
 
 [task.inputs.performance]
 path = "materials/testbench.spice"
@@ -894,8 +894,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "bias_v"
@@ -918,8 +921,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "quiescent_a"
@@ -941,9 +947,12 @@ baseline = [
     "source_condition_3:quiescent_a",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "power_w"
 category = "performance"
@@ -964,9 +973,12 @@ baseline = [
     "source_condition_3:power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "dc_gain_db"
 category = "performance"
@@ -1008,7 +1020,10 @@ baseline = [
     "source_condition_3:unity_hz",
 ]
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The observed frequency or ordered-event interval has a nonnegative measurement domain, and its required crossing must exist for a usable observation."
 
 [[task.evaluation.metrics]]
 id = "phase_margin_deg"
@@ -1031,8 +1046,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 180
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 180
+rationale = "The declared negative-feedback loop must stay on the measured 0 to 180 degree stable-feedback branch at the required unity crossing; the amount of positive phase margin remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "final_unity_hz"
@@ -1054,7 +1072,10 @@ baseline = [
     "source_condition_3:final_unity_hz",
 ]
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The observed frequency or ordered-event interval has a nonnegative measurement domain, and its required crossing must exist for a usable observation."
 
 [[task.evaluation.metrics]]
 id = "final_phase_margin_deg"
@@ -1077,8 +1098,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 180
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 180
+rationale = "The declared negative-feedback loop must stay on the measured 0 to 180 degree stable-feedback branch at the required unity crossing; the amount of positive phase margin remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "minimum_return_distance"
@@ -1101,7 +1125,10 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.0
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The declared response magnitude, impedance, capacitance, amplitude or absolute return-ratio diagnostic has a nonnegative measurement domain; its value remains a quality or diagnostic observation."
 
 [[task.evaluation.metrics]]
 id = "return_phase_excursion_deg"
@@ -1123,9 +1150,12 @@ baseline = [
     "source_condition_3:return_phase_excursion_deg",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared response magnitude, impedance, capacitance, amplitude or absolute return-ratio diagnostic has a nonnegative measurement domain; its value remains a quality or diagnostic observation."
+
 [[task.evaluation.metrics]]
 id = "hf_gain_db"
 category = "performance"
@@ -1168,8 +1198,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "maximum_v"
@@ -1192,8 +1225,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "recovery_load_v"
@@ -1214,10 +1250,13 @@ baseline = [
     "source_condition_2:recovery_load_v",
     "source_condition_3:recovery_load_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "recovery_release_v"
 category = "performance"
@@ -1237,10 +1276,13 @@ baseline = [
     "source_condition_2:recovery_release_v",
     "source_condition_3:recovery_release_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "mean_power_w"
 category = "performance"
@@ -1261,9 +1303,12 @@ baseline = [
     "source_condition_3:mean_power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "loaded_ripple_v"
 category = "performance"
@@ -1283,10 +1328,13 @@ baseline = [
     "source_condition_2:loaded_ripple_v",
     "source_condition_3:loaded_ripple_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "released_ripple_v"
 category = "performance"
@@ -1306,10 +1354,13 @@ baseline = [
     "source_condition_2:released_ripple_v",
     "source_condition_3:released_ripple_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "startup_error_v"
 category = "performance"
@@ -1337,10 +1388,13 @@ baseline = [
     "source_startup_6:startup_error_v",
     "source_startup_7:startup_error_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "startup_peak_v"
 category = "performance"
@@ -1370,8 +1424,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "startup_minimum_v"
@@ -1424,8 +1481,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "headroom_v"
@@ -1448,7 +1508,10 @@ baseline = [
 ]
 normalization = "ratio"
 scale = 1e-06
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
 
 [[task.evaluation.metrics]]
 id = "line_span_v"
@@ -1469,9 +1532,12 @@ baseline = [
     "source_sweeps_2:line_span_v",
     "source_sweeps_3:line_span_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
 
 [[task.evaluation.metrics]]
 id = "load_span_v"
@@ -1492,15 +1558,18 @@ baseline = [
     "source_sweeps_2:load_span_v",
     "source_sweeps_3:load_span_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "efedff6ab870d87ad594d605e505814a7979e9dc651fe2babcd9362c1d1e5a84"
+source_report_sha256 = "df195fb9db62a6e2d844704fe11086b04388656f3ee1156a6606fa035a5166c1"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:34eff92f7ffca7b8b010bcded394c4625c14143c757fda519e873b7ef8e87dc5\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"b37617de396ed1efd50c9c4e47e485ab8af07651c053c745efc14db659b5562a\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -1626,6 +1695,12 @@ unit = "deg"
 value = 401330.1
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+op = "7a38ec1885e360e0761bed6fffcf613d659c102f86b1a614fd5d67cbb7994895"
+ac = "ed962fc4125ad3de6025726e8f0003e53c7dd3fb23c0f1d3fbeb7c236d95d28f"
+transient = "3a68c5d4fc8eeb7e413f29975fd074283281d347e5d9700e1377372a84f59c99"
+voltage = "bce6edac0d8a71c45b9f5a8ab95eff2d1638e156b1c1c8eccb3f69b7d0c0d8fd"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -1750,6 +1825,12 @@ unit = "deg"
 value = 401519.5
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+op = "bdc7095af0bfb161b892a72c4fc76372c570e6c362973bb2db178bde49c832cc"
+ac = "8fa36a84b86db8fa2f74d8da60eab58f090cc544320ba065ab464c16c640e11c"
+transient = "fbaa0b032424ffbdee85faf8192c6ddde9fda61a838122fa4bdac91f27e25f1e"
+voltage = "c7f50e1fa471ad2106f3292a4d6a99798e81db8b91be1cca44bb3a6baa9eb1aa"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -1874,6 +1955,12 @@ unit = "deg"
 value = 405881.0
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+op = "4a96150e440dcd0a79b78b5e7361d8673cde348d396baa64a167be93e791d9a8"
+ac = "5118f59669423049f343c8dbe681b0a72d1dc9fad2a4322181a8c82e821c1899"
+transient = "375719f297d50bb669813bcae8b23f01ac100e3a58f06dac1aba239c895ede75"
+voltage = "ffa60d7dd76df78e3e278436c0c17f1ca2e8ef11fab6349f14de7a69aaf6f242"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -1998,6 +2085,12 @@ unit = "deg"
 value = 406136.2
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+op = "2dc8f08f850c8cd84b40764fbbd49dfb30ba7347f3441b0a196aa45f7a0f5930"
+ac = "c3d5174cf03ad969d01b653eff280f64343ce15cde9f13f87e6ef7e06358480b"
+transient = "fca971704ec5bcf9d9353653d2031016055cfc49910351f1c77b090387abf60b"
+voltage = "e4fbd25e05e86fede227b8ee0bab6bf50cb8032e82666135f90c2b06eac77976"
+
 [task.evaluation.pre_layout.jobs.source_startup_0]
 operation = "circuit.simulate"
 
@@ -2037,6 +2130,9 @@ unit = "V"
 value = 0.018016
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_0.output_sha256]
+transient = "c064af25fa1800bcb4a61278c10149537acf230a6e7361f6e2da2a2ba16843e5"
+
 [task.evaluation.pre_layout.jobs.source_startup_1]
 operation = "circuit.simulate"
 
@@ -2076,6 +2172,9 @@ unit = "V"
 value = 0.018016
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_1.output_sha256]
+transient = "505231bf55052da3ec4d5c4dd5e64bf952066fea2f924bdcd4afc2136d829a5e"
+
 [task.evaluation.pre_layout.jobs.source_startup_2]
 operation = "circuit.simulate"
 
@@ -2115,6 +2214,9 @@ unit = "V"
 value = 0.01186432
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_2.output_sha256]
+transient = "d10177dabb17d34abec3648cadbd6123c62acbd20bd05152ef8be1e66f103844"
+
 [task.evaluation.pre_layout.jobs.source_startup_3]
 operation = "circuit.simulate"
 
@@ -2154,6 +2256,9 @@ unit = "V"
 value = 0.01186432
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_3.output_sha256]
+transient = "172815865375232e540636881c1363f72d3d55de158f802421272a295d3c7686"
+
 [task.evaluation.pre_layout.jobs.source_startup_4]
 operation = "circuit.simulate"
 
@@ -2193,6 +2298,9 @@ unit = "V"
 value = 0.01544172
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_4.output_sha256]
+transient = "20aa11982e518fb2a84dfe8f2c398a8cf2283174cfdc90cfc5d6eb03dac3c4e7"
+
 [task.evaluation.pre_layout.jobs.source_startup_5]
 operation = "circuit.simulate"
 
@@ -2232,6 +2340,9 @@ unit = "V"
 value = 0.01544172
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_5.output_sha256]
+transient = "7f1c5854fb0acaf429af696ac8316eea36195e6bcc101b56b7fd31ab6da81505"
+
 [task.evaluation.pre_layout.jobs.source_startup_6]
 operation = "circuit.simulate"
 
@@ -2271,6 +2382,9 @@ unit = "V"
 value = 0.01012422
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_6.output_sha256]
+transient = "fc5bd394fc4eed7c7c1a30ef78e637a372d25addd0b36b3d52df2af8c6008de1"
+
 [task.evaluation.pre_layout.jobs.source_startup_7]
 operation = "circuit.simulate"
 
@@ -2310,6 +2424,9 @@ unit = "V"
 value = 0.01012422
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_7.output_sha256]
+transient = "6dfb5254b0280b930e1ba857437afff541d472044a56a54b167ea36cab1178c9"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_0]
 operation = "circuit.simulate"
 
@@ -2355,6 +2472,10 @@ unit = "V"
 value = 0.8799225
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_0.output_sha256]
+line = "597809c53194839108a1209e21df1b015ef7df9cfe039b5dbb996867c35ff607"
+load = "fe674612280e097cb6522f3d07ebb952e224be7fa6fdb1641453e1f91b1e18a7"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_1]
 operation = "circuit.simulate"
 
@@ -2400,6 +2521,10 @@ unit = "V"
 value = 0.9339764
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_1.output_sha256]
+line = "466c2c6190d83ddefe7a46527c509985d13ecc814f22f298964e631a28abf420"
+load = "fe674612280e097cb6522f3d07ebb952e224be7fa6fdb1641453e1f91b1e18a7"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_2]
 operation = "circuit.simulate"
 
@@ -2445,6 +2570,10 @@ unit = "V"
 value = 0.8799225
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_2.output_sha256]
+line = "597809c53194839108a1209e21df1b015ef7df9cfe039b5dbb996867c35ff607"
+load = "2567d259f02b81876dccb50ba8fd3202012e69a03294edc791037e75e1792c25"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_3]
 operation = "circuit.simulate"
 
@@ -2490,6 +2619,10 @@ unit = "V"
 value = 0.9339764
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_3.output_sha256]
+line = "466c2c6190d83ddefe7a46527c509985d13ecc814f22f298964e631a28abf420"
+load = "2567d259f02b81876dccb50ba8fd3202012e69a03294edc791037e75e1792c25"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -2502,7 +2635,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -2513,7 +2646,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -2526,7 +2659,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -2539,7 +2672,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -2559,7 +2692,7 @@ label_layers = [
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -2569,7 +2702,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-res-models"
 timeout_seconds = 600
 

tasks/ihp-sg13g2/analog-db/cases/ldo_001_analoggym_basic/problem.md

@@ -101,11 +101,7 @@ runnable failure probes. The maintained contract explicitly narrows the
 initial development stimuli without relaxing the voltage-excursion bounds.
 Loads below 0.2 mA are outside the qualified dynamic range.
 
-First and final crossing phase margins must both lie in [0, 180] degrees.
-Minimum return distance and return-phase excursion have only nonnegative
-domain bounds; high-frequency gain has no acceptance bound. These full-sweep
-metrics affect continuous quality without adding a stability acceptance screen.
-Missing crossings or invalid observations are evaluator errors.
+The phase margins at the first and last crossings must both lie within [0, 180] degrees. Minimum return distance and return-phase excursion need only be nonnegative; high-frequency gain has no acceptance threshold. These full-sweep metrics affect continuous quality without adding stability acceptance conditions. Missing crossings or invalid observations are evaluation errors.
 
 ## Physical Requirements
 
@@ -125,43 +121,21 @@ resistance/noise and fabrication signoff remain unqualified.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-Measurement definitions below use the supplied SPICE node/source names.
-`v(n)` is node voltage and `i(V)` is current into a voltage source; delivered
-power therefore uses a minus sign. `db(z)=20*log10(abs(z))`, `mag/abs`
-denote magnitude, and `cph` is continuous phase in radians. `find`, `when`,
-`from/to`, and `rise/fall` retain the deck's interpolation, window and
-crossing conventions; SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/
-milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv`
-mean the stated window average, extrema and sampled derivative. All
-declared conditions are measured separately and paired with the same
-source condition; a group uses its worst paired quality.
-
-| Metric | Definition / observations | Unit | Quality rule | Functional bounds | Scale | Dimension |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+The measurements below use the supplied SPICE node and source names. `v(n)` is a node voltage; `i(V)` is current flowing into a voltage source, so delivered power uses a negative sign. `db(z)=20*log10(abs(z))`; `mag/abs` denote magnitude, and `cph` denotes continuous phase in radians. `find`, `when`, `from/to` and `rise/fall` follow the deck's interpolation, window and crossing conventions. SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv` represent window averages, extrema and sampled derivatives. Measure each operating condition independently, pair it with the source result under that condition, and take the worst paired quality within each metric group.
+
+`loaded_ripple_v`, `released_ripple_v`, `startup_error_v`, `recovery_load_v`, `recovery_release_v`, `line_span_v`, `load_span_v` use `saturating_ratio`: q = 2(b+s)/(b+x+2s), where x is candidate error, b is paired source error and s is the positive scale below. Source equivalence gives q=1; improvement approaches the upper limit 2 with diminishing returns. s retains the declared units and numeric-floor meaning; normalize each condition before taking the worst quality, and apply other rules as declared.
+
+| Metric | Definition / observation | Unit | Quality normalization | Functional range | Scale | Dimension |
 | --- | --- | --- | --- | --- | --- | --- |
 | `output_v` | DC operating point: `v(vout)`. | V | target / target | 0 … 1.3 | 1.3 | bias |
 | `bias_v` | DC operating point: `v(ib)`. | V | target / target | 0 … 1.3 | 1.3 | bias |
@@ -177,28 +151,26 @@ source condition; a group uses its worst paired quality.
 | `hf_gain_db` | AC: Maximum of `(db((T))) from=200meg to=1g`. | dB | minimize / db20 | −∞ … +∞ | — | response |
 | `minimum_v` | TRAN: Minimum of `v(vout) from=2u to=18u`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `maximum_v` | TRAN: Maximum of `v(vout) from=2u to=18u`. | V | target / target | 0 … 1.3 | 1.3 | response |
-| `recovery_load_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=5u to=9.5u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `recovery_release_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=13u to=17.5u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `recovery_load_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=5u to=9.5u`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `recovery_release_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=13u to=17.5u`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 | `mean_power_w` | TRAN: Mean of `(-v(vdd)*i(VDD)) from=2u to=18u`. | W | minimize / ratio | 0 … +∞ | 1e-12 | supply |
-| `loaded_ripple_v` | Transient: `(max v(vout) from=9u to=9.5u)-(min v(vout) from=9u to=9.5u)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `released_ripple_v` | Transient: `(max v(vout) from=17u to=17.5u)-(min v(vout) from=17u to=17.5u)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `startup_error_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=40u to=49u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `loaded_ripple_v` | Transient: `(max v(vout) from=9u to=9.5u)-(min v(vout) from=9u to=9.5u)`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `released_ripple_v` | Transient: `(max v(vout) from=17u to=17.5u)-(min v(vout) from=17u to=17.5u)`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `startup_error_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=40u to=49u`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 | `startup_peak_v` | TRAN: Maximum of `v(vout) from=0 to=50u`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `startup_minimum_v` | TRAN: Minimum of `v(vout) from=0 to=50u`. | V | target / target | −∞ … +∞ | 1.3 | response |
 | `regulation_floor_v` | DC: Crossing coordinate where `(abs(v(vout)-0.9))=0.03 rise=1`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `headroom_v` | DC sweep: `(when (abs(v(vout)-0.9))=0.03 rise=1)-(find v(vout) when (abs(v(vout)-0.9))=0.03 rise=1)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `line_span_v` | DC sweep: `(max v(vout) from=1.3 to=1.2)-(min v(vout) from=1.3 to=1.2)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `load_span_v` | DC sweep: `(max v(vout))-(min v(vout))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-
-Area reference: **42364.42 um2**. 1240 expanded device instances; sum of device/contact envelopes 27974.3733 um2, per-side envelope allowance 0.6 um, 50% routing allowance and total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across two opposite sides; the envelope sum is displayed rounded to four decimals. MOS/passive envelopes use declared W/L (or resistor dimensions) and multiplicity; explicit tap areas and HBT emitter/contact envelopes are included. This is a frozen engineering estimate, not a foundry minimum or a feasibility claim.
+| `line_span_v` | DC sweep: `(max v(vout) from=1.3 to=1.2)-(min v(vout) from=1.3 to=1.2)`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `load_span_v` | DC sweep: `(max v(vout))-(min v(vout))`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 
-The capability coefficient remains **9**; it is independent of
-the reference-relative task score.
+Area reference: **42364.42 um2**. The expanded circuit has 1240 device instances, a sum of device/contact envelopes 27974.3733 um2, a one-sided envelope margin of 0.6 um, a routing allowance of 50%, and a total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across both sides, and the envelope sum is displayed to four decimal places. MOS/passive envelopes use W/L (or resistor dimensions) and multiplicity, including explicit contacts and HBT emitter/contact envelopes. This is a frozen engineering estimate, not a process minimum or a proven achievable area.
 
+The capability coefficient is **9**, independent of this task's reference-normalized score.
 
 ### Score weights
 
-IHP regulators: regulation and headroom 22.5%; load recovery 22.5%; startup 13.5%; loop stability 13.5%; AC transfer and extrema 4.5%; internal bias 1.8%; quiescent current 7.2%; power 4.5%; area 10%. Each objective's weight is divided equally among its metrics.
+IHP regulator: regulation and dropout 22.5%, load recovery 22.5%, startup 13.5%, loop stability 13.5%, AC transfer and extrema 4.5%, internal bias 1.8%, quiescent current 7.2%, power 4.5%, area 10%; each objective weight is divided equally among its metrics.
 
 | Metric | Weight |
 | --- | ---: |

tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/case.toml

@@ -1,15 +1,15 @@
-in_core = true
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.ldo_008_fer_mirror_ota"
 title = "Mirror-OTA Regulator with Bilateral Return-Ratio Measurements"
 status = "qualified"
+in_core = true
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "050403a3b481c67916e5cbe065b16d3f1e4ad4b055e96e71fba09891b9b4d865"
+sha256 = "21f1e53dc4cea5bfb62be1b5cbf01b4327566ffcfc4e014a2a6734f469632547"
 
 [[assets]]
 path = "reference/ldo_008_fer_mirror_ota.gds"
@@ -28,18 +28,18 @@ environment = "ihp-sg13g2-ldo_008_fer_mirror_ota-nominal-rc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "30a89147fa8d7b619eedfe8099816048e11c137b45f03fa137c7e373aaf22ef9"
+sha256 = "a5c849543542998a37375cacabf63759f09475c14959d4a76c96c9ad6dafb11a"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "810d7fc0b63340bbd097f338e2a5c7fed29aaa5a51370abe30fc28b80297e1db"
 subcircuit = "ldo_008_fer_mirror_ota"
+sha256 = "810d7fc0b63340bbd097f338e2a5c7fed29aaa5a51370abe30fc28b80297e1db"
 
 [task.inputs.performance]
 path = "materials/testbench.spice"
 format = "spice"
-sha256 = "ff8649be565ab4994e13a01701e390f06f4c1d06532f78708daf6344cc1846af"
+sha256 = "ab48ff03c75420371cfbd2ed534417b4f4c664f22e5331dee65a5ad598474157"
 
 [task.inputs.simulation]
 path = "materials/circuit.spice"
@@ -49,17 +49,22 @@ sha256 = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 [task.inputs.startup]
 path = "materials/startup.spice"
 format = "spice"
-sha256 = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+sha256 = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 
 [task.inputs.sweeps]
 path = "materials/sweeps.spice"
 format = "spice"
-sha256 = "d23bc4d7d5f74ba8ccb65945aca0171d0ab04c1b1a8a533a09cefe965c2c10fd"
+sha256 = "edbcd5a9a41617351ff255002ab3fad040614ddd1f4d7d8710c422aaa030f663"
+
+[task.inputs.psrr]
+path = "materials/psrr.spice"
+format = "spice"
+sha256 = "fafeed362ed7060883e4900e29433ba90ccf45c6a29c0b77316045803093eb70"
 
 [task.inputs.fast]
 path = "materials/fast.spice"
 format = "spice"
-sha256 = "cdede5701638863728fbd3f89a87841d7cf16fa27693e2514ce413053b47bea4"
+sha256 = "19a534910443f4fdebc71130c309d510c22ce80e03a17b4fccade01d9ce5465f"
 
 [task.constraints]
 quality = [
@@ -262,37 +267,39 @@ mode = "post_layout"
 [task.evaluation.scoring]
 method = "layout"
 area_metric = "functional_area"
-area_target = 172708.78
-rationale = "IHP regulators: regulation and headroom 22.5%; load recovery 22.5%; startup 13.5%; loop stability 13.5%; AC transfer and extrema 4.5%; internal bias 1.8%; quiescent current 7.2%; power 4.5%; area 10%. Each objective's weight is divided equally among its metrics."
+area_target = 70000.0
+rationale = "The 70000 um2 footprint carries 35%. Load/release recovery carry 15%/10%; load span 10%; line span, headroom, each PSRR frequency and quiescent current carry 5% each. First and final phase-margin preservation share 5% with 10-degree scales. The 5 mV recovery, 1 mV line span, 10 mV load span and 20 mV headroom goals are explicit quality goals. Startup extrema and repeated power/loop summaries remain diagnostic; all functional startup and stability checks remain."
 
 [task.evaluation.scoring.weights]
-functional_area = 0.1
-headroom_v = 0.045
-line_span_v = 0.045
-load_span_v = 0.045
-output_v = 0.045
-regulation_floor_v = 0.045
-recovery_load_v = 0.1125
-recovery_release_v = 0.1125
-startup_error_v = 0.045
-startup_minimum_v = 0.045
-startup_peak_v = 0.045
-final_phase_margin_deg = 0.03375
-minimum_return_distance = 0.03375
-phase_margin_deg = 0.03375
-return_phase_excursion_deg = 0.03375
-dc_gain_db = 0.005625
-fast_peak_v = 0.005625
-fast_tail_v = 0.005625
-final_unity_hz = 0.005625
-hf_gain_db = 0.005625
-maximum_v = 0.005625
-minimum_v = 0.005625
-unity_hz = 0.005625
-bias_v = 0.018
-quiescent_a = 0.072
-mean_power_w = 0.0225
-power_w = 0.0225
+functional_area = 0.35
+headroom_v = 0.05
+line_span_v = 0.05
+load_span_v = 0.1
+output_v = 0.0
+regulation_floor_v = 0.0
+psrr_1khz_db = 0.05
+psrr_1mhz_db = 0.05
+recovery_load_v = 0.15
+recovery_release_v = 0.1
+startup_error_v = 0.0
+startup_minimum_v = 0.0
+startup_peak_v = 0.0
+final_phase_margin_deg = 0.025
+minimum_return_distance = 0.0
+phase_margin_deg = 0.025
+return_phase_excursion_deg = 0.0
+dc_gain_db = 0.0
+fast_peak_v = 0.0
+fast_tail_v = 0.0
+final_unity_hz = 0.0
+hf_gain_db = 0.0
+maximum_v = 0.0
+minimum_v = 0.0
+unity_hz = 0.0
+bias_v = 0.0
+quiescent_a = 0.05
+mean_power_w = 0.0
+power_w = 0.0
 
 [[task.evaluation.jobs]]
 id = "artifact"
@@ -952,6 +959,98 @@ fast_tail_v = "V"
 [task.evaluation.jobs.parameters.exports]
 transient = "transient.raw"
 
+[[task.evaluation.jobs]]
+id = "psrr_0"
+stage = "simulate"
+operation = "circuit.simulate"
+
+[task.evaluation.jobs.inputs]
+deck = "input:psrr"
+dut = "job:parasitics:netlist"
+
+[task.evaluation.jobs.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.jobs.parameters.values]
+supply_v = 1.2
+load_a = 0.0001
+
+[task.evaluation.jobs.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.jobs.parameters.exports]
+ac = "ac.raw"
+
+[[task.evaluation.jobs]]
+id = "psrr_1"
+stage = "simulate"
+operation = "circuit.simulate"
+
+[task.evaluation.jobs.inputs]
+deck = "input:psrr"
+dut = "job:parasitics:netlist"
+
+[task.evaluation.jobs.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.jobs.parameters.values]
+supply_v = 1.2
+load_a = 0.0005
+
+[task.evaluation.jobs.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.jobs.parameters.exports]
+ac = "ac.raw"
+
+[[task.evaluation.jobs]]
+id = "psrr_2"
+stage = "simulate"
+operation = "circuit.simulate"
+
+[task.evaluation.jobs.inputs]
+deck = "input:psrr"
+dut = "job:parasitics:netlist"
+
+[task.evaluation.jobs.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.jobs.parameters.values]
+supply_v = 1.3
+load_a = 0.0001
+
+[task.evaluation.jobs.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.jobs.parameters.exports]
+ac = "ac.raw"
+
+[[task.evaluation.jobs]]
+id = "psrr_3"
+stage = "simulate"
+operation = "circuit.simulate"
+
+[task.evaluation.jobs.inputs]
+deck = "input:psrr"
+dut = "job:parasitics:netlist"
+
+[task.evaluation.jobs.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.jobs.parameters.values]
+supply_v = 1.3
+load_a = 0.0005
+
+[task.evaluation.jobs.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.jobs.parameters.exports]
+ac = "ac.raw"
+
 [[task.evaluation.metrics]]
 id = "functional_area"
 category = "physical"
@@ -983,8 +1082,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The unipolar regulator output and bias must stay within the declared 0 to 1.3 V operating envelope; reversed polarity or an output beyond the supplied rail is outside this circuit interface."
 
 [[task.evaluation.metrics]]
 id = "bias_v"
@@ -1007,8 +1109,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The unipolar regulator output and bias must stay within the declared 0 to 1.3 V operating envelope; reversed polarity or an output beyond the supplied rail is outside this circuit interface."
 
 [[task.evaluation.metrics]]
 id = "quiescent_a"
@@ -1030,9 +1135,12 @@ baseline = [
     "source_condition_3:quiescent_a",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "This regulator consumes supply energy while delivering the external load current. A negative net consumption would describe an energy-generating fixture rather than the required regulator."
+
 [[task.evaluation.metrics]]
 id = "power_w"
 category = "performance"
@@ -1053,9 +1161,12 @@ baseline = [
     "source_condition_3:power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "This regulator consumes supply energy while delivering the external load current. A negative net consumption would describe an energy-generating fixture rather than the required regulator."
+
 [[task.evaluation.metrics]]
 id = "dc_gain_db"
 category = "performance"
@@ -1097,7 +1208,10 @@ baseline = [
     "source_condition_3:unity_hz",
 ]
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The observed unity crossing must be a nonnegative physical frequency within the declared AC sweep; an unavailable crossing is a measurement error."
 
 [[task.evaluation.metrics]]
 id = "phase_margin_deg"
@@ -1119,9 +1233,12 @@ baseline = [
     "source_condition_3:phase_margin_deg",
 ]
 normalization = "target"
-scale = 180
+scale = 10.0
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 180
+rationale = "The declared negative-feedback loop must remain on the stable 0 to 180 degree phase-margin branch at its first and final unity crossings; a negative margin loses stable regulation."
 
 [[task.evaluation.metrics]]
 id = "final_unity_hz"
@@ -1143,7 +1260,10 @@ baseline = [
     "source_condition_3:final_unity_hz",
 ]
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The observed unity crossing must be a nonnegative physical frequency within the declared AC sweep; an unavailable crossing is a measurement error."
 
 [[task.evaluation.metrics]]
 id = "final_phase_margin_deg"
@@ -1165,9 +1285,12 @@ baseline = [
     "source_condition_3:final_phase_margin_deg",
 ]
 normalization = "target"
-scale = 180
+scale = 10.0
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 180
+rationale = "The declared negative-feedback loop must remain on the stable 0 to 180 degree phase-margin branch at its first and final unity crossings; a negative margin loses stable regulation."
 
 [[task.evaluation.metrics]]
 id = "minimum_return_distance"
@@ -1190,7 +1313,10 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.0
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "This observation is a magnitude, absolute error or range. A negative value cannot represent the declared physical measurement; its positive value remains a scored quality objective without an upper performance cutoff."
 
 [[task.evaluation.metrics]]
 id = "return_phase_excursion_deg"
@@ -1212,9 +1338,12 @@ baseline = [
     "source_condition_3:return_phase_excursion_deg",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "This observation is a magnitude, absolute error or range. A negative value cannot represent the declared physical measurement; its positive value remains a scored quality objective without an upper performance cutoff."
+
 [[task.evaluation.metrics]]
 id = "hf_gain_db"
 category = "performance"
@@ -1257,8 +1386,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The unipolar regulator output and bias must stay within the declared 0 to 1.3 V operating envelope; reversed polarity or an output beyond the supplied rail is outside this circuit interface."
 
 [[task.evaluation.metrics]]
 id = "maximum_v"
@@ -1281,8 +1413,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The unipolar regulator output and bias must stay within the declared 0 to 1.3 V operating envelope; reversed polarity or an output beyond the supplied rail is outside this circuit interface."
 
 [[task.evaluation.metrics]]
 id = "recovery_load_v"
@@ -1303,9 +1438,16 @@ baseline = [
     "source_condition_2:recovery_load_v",
     "source_condition_3:recovery_load_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 0.0005
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "This observation is a magnitude, absolute error or range. A negative value cannot represent the declared physical measurement; its positive value remains a scored quality objective without an upper performance cutoff."
+
+[task.evaluation.metrics.quality_target]
+value = 0.005
+rationale = "Aim for at most 5 mV late-window output error after the declared load increase."
 
 [[task.evaluation.metrics]]
 id = "recovery_release_v"
@@ -1326,9 +1468,16 @@ baseline = [
     "source_condition_2:recovery_release_v",
     "source_condition_3:recovery_release_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 0.0005
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "This observation is a magnitude, absolute error or range. A negative value cannot represent the declared physical measurement; its positive value remains a scored quality objective without an upper performance cutoff."
+
+[task.evaluation.metrics.quality_target]
+value = 0.005
+rationale = "Aim for at most 5 mV late-window output error after the declared load release."
 
 [[task.evaluation.metrics]]
 id = "mean_power_w"
@@ -1350,9 +1499,12 @@ baseline = [
     "source_condition_3:mean_power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "This regulator consumes supply energy while delivering the external load current. A negative net consumption would describe an energy-generating fixture rather than the required regulator."
+
 [[task.evaluation.metrics]]
 id = "startup_error_v"
 category = "performance"
@@ -1380,10 +1532,13 @@ baseline = [
     "source_startup_6:startup_error_v",
     "source_startup_7:startup_error_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "This observation is a magnitude, absolute error or range. A negative value cannot represent the declared physical measurement; its positive value remains a scored quality objective without an upper performance cutoff."
+
 [[task.evaluation.metrics]]
 id = "startup_peak_v"
 category = "performance"
@@ -1413,8 +1568,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The unipolar regulator output and bias must stay within the declared 0 to 1.3 V operating envelope; reversed polarity or an output beyond the supplied rail is outside this circuit interface."
 
 [[task.evaluation.metrics]]
 id = "startup_minimum_v"
@@ -1467,8 +1625,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The regulation-loss crossing is a supply coordinate in the declared 0 to 1.3 V DC sweep; an out-of-range coordinate does not establish the required regulation measurement."
 
 [[task.evaluation.metrics]]
 id = "headroom_v"
@@ -1490,8 +1651,15 @@ baseline = [
     "source_sweeps_3:headroom_v",
 ]
 normalization = "ratio"
-scale = 1e-06
+scale = 0.001
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The declared non-boosting regulator requires nonnegative input-to-output headroom at the regulation-loss crossing."
+
+[task.evaluation.metrics.quality_target]
+value = 0.02
+rationale = "Aim for at most 20 mV input-to-output headroom at the declared regulation-loss crossing."
 
 [[task.evaluation.metrics]]
 id = "line_span_v"
@@ -1512,9 +1680,16 @@ baseline = [
     "source_sweeps_2:line_span_v",
     "source_sweeps_3:line_span_v",
 ]
-normalization = "ratio"
-scale = 1e-06
+normalization = "saturating_ratio"
+scale = 0.0001
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "This observation is a magnitude, absolute error or range. A negative value cannot represent the declared physical measurement; its positive value remains a scored quality objective without an upper performance cutoff."
+
+[task.evaluation.metrics.quality_target]
+value = 0.001
+rationale = "Aim for at most 1 mV output span over the declared line sweep."
 
 [[task.evaluation.metrics]]
 id = "load_span_v"
@@ -1535,9 +1710,16 @@ baseline = [
     "source_sweeps_2:load_span_v",
     "source_sweeps_3:load_span_v",
 ]
-normalization = "ratio"
-scale = 1e-06
+normalization = "saturating_ratio"
+scale = 0.001
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "This observation is a magnitude, absolute error or range. A negative value cannot represent the declared physical measurement; its positive value remains a scored quality objective without an upper performance cutoff."
+
+[task.evaluation.metrics.quality_target]
+value = 0.01
+rationale = "Aim for at most 10 mV output span over the declared load sweep."
 
 [[task.evaluation.metrics]]
 id = "fast_peak_v"
@@ -1560,8 +1742,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The load-pulse output deviation is an absolute magnitude. A deviation larger than the full 1.3 V operating envelope loses the unipolar regulator output interface."
 
 [[task.evaluation.metrics]]
 id = "fast_tail_v"
@@ -1584,14 +1769,59 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The load-pulse output deviation is an absolute magnitude. A deviation larger than the full 1.3 V operating envelope loses the unipolar regulator output interface."
+
+[[task.evaluation.metrics]]
+id = "psrr_1khz_db"
+category = "performance"
+observations = [
+    "psrr_0:psrr_1khz_db",
+    "psrr_1:psrr_1khz_db",
+    "psrr_2:psrr_1khz_db",
+    "psrr_3:psrr_1khz_db",
+]
+unit = "dB"
+dimension = "response"
+direction = "maximize"
+aggregation = "max"
+baseline = [
+    "source_psrr_0:psrr_1khz_db",
+    "source_psrr_1:psrr_1khz_db",
+    "source_psrr_2:psrr_1khz_db",
+    "source_psrr_3:psrr_1khz_db",
+]
+normalization = "db20"
+
+[[task.evaluation.metrics]]
+id = "psrr_1mhz_db"
+category = "performance"
+observations = [
+    "psrr_0:psrr_1mhz_db",
+    "psrr_1:psrr_1mhz_db",
+    "psrr_2:psrr_1mhz_db",
+    "psrr_3:psrr_1mhz_db",
+]
+unit = "dB"
+dimension = "response"
+direction = "maximize"
+aggregation = "max"
+baseline = [
+    "source_psrr_0:psrr_1mhz_db",
+    "source_psrr_1:psrr_1mhz_db",
+    "source_psrr_2:psrr_1mhz_db",
+    "source_psrr_3:psrr_1mhz_db",
+]
+normalization = "db20"
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "9cf432352db73eddcdf18165316bdf78a79211cee3664e182c954ae1de926752"
+source_report_sha256 = "3d5cbd2a2e180b10c1e65385a38923181a8d6aa993a33f6c3bac2e1ccde867f6"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:34eff92f7ffca7b8b010bcded394c4625c14143c757fda519e873b7ef8e87dc5\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"487f8dc33e5a6ec99b613ce2161c58731ba2b250b913db4cc446d627d40c1c57\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -1636,7 +1866,7 @@ transient = "transient.raw"
 voltage = "voltage.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.input_sha256]
-deck = "ff8649be565ab4994e13a01701e390f06f4c1d06532f78708daf6344cc1846af"
+deck = "ab48ff03c75420371cfbd2ed534417b4f4c664f22e5331dee65a5ad598474157"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.bias_v]
@@ -1660,7 +1890,7 @@ value = -7.633848
 unit = "dB"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.maximum_v]
-value = 1.021501
+value = 1.021509
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.mean_power_w]
@@ -1672,7 +1902,7 @@ value = 0.8169720770945
 unit = "1"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.minimum_v]
-value = 0.9934197
+value = 0.993422
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.output_v]
@@ -1692,11 +1922,11 @@ value = 0.0001458006371875
 unit = "A"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.recovery_load_v]
-value = 0.005987694
+value = 0.005987693
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.recovery_release_v]
-value = 0.008601531
+value = 0.008600941
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.return_phase_excursion_deg]
@@ -1707,6 +1937,12 @@ unit = "deg"
 value = 407773.7
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+op = "883b6800165f683168f9eb1fda04e2ac7fbb93aa01faf10c3fc76fe3dc01937c"
+ac = "6e2daa0ea2153da7724f31d020546af235ae5eb0267fcf2f48e790eaa1136d65"
+transient = "481b0a30331cec8a7e4725b98873ac85c8d9dedda435c9e58282cf77d454ef11"
+voltage = "e1044d71b257bb1ab06ff0830b8d045a184fa144f93b00dee8d025069292d1f3"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -1750,7 +1986,7 @@ transient = "transient.raw"
 voltage = "voltage.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.input_sha256]
-deck = "ff8649be565ab4994e13a01701e390f06f4c1d06532f78708daf6344cc1846af"
+deck = "ab48ff03c75420371cfbd2ed534417b4f4c664f22e5331dee65a5ad598474157"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.bias_v]
@@ -1774,7 +2010,7 @@ value = -6.918798
 unit = "dB"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.maximum_v]
-value = 1.025343
+value = 1.025335
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.mean_power_w]
@@ -1786,7 +2022,7 @@ value = 0.8513838903873
 unit = "1"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.minimum_v]
-value = 0.9742929
+value = 0.9742957
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.output_v]
@@ -1806,11 +2042,11 @@ value = 0.0001452353982789
 unit = "A"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.recovery_load_v]
-value = 0.00348968
+value = 0.003488723
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.recovery_release_v]
-value = 0.002086921
+value = 0.002086824
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.return_phase_excursion_deg]
@@ -1821,6 +2057,12 @@ unit = "deg"
 value = 432280.1
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+op = "cdd321afc1567e7ba36e987c53873b3075b33e57bde88b9da7bab9feb5c699ec"
+ac = "96aaaa680524ec10c8a08260c3588fe6e3373b0420696b9793ea54aecb3d19bd"
+transient = "411a73282d2052698670ff39186516d2a97a0f262beb47137a3269f2ab3c75d4"
+voltage = "6a485e682aba2adb4dd40e3226cf8522fd49c5322ea9c209507aa9b151113dd4"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -1864,7 +2106,7 @@ transient = "transient.raw"
 voltage = "voltage.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.input_sha256]
-deck = "ff8649be565ab4994e13a01701e390f06f4c1d06532f78708daf6344cc1846af"
+deck = "ab48ff03c75420371cfbd2ed534417b4f4c664f22e5331dee65a5ad598474157"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.bias_v]
@@ -1888,7 +2130,7 @@ value = -7.258347
 unit = "dB"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.maximum_v]
-value = 1.020852
+value = 1.020847
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.mean_power_w]
@@ -1900,7 +2142,7 @@ value = 0.8119621801706
 unit = "1"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.minimum_v]
-value = 0.9932559
+value = 0.9932588
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.output_v]
@@ -1920,11 +2162,11 @@ value = 0.0001460221513392
 unit = "A"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.recovery_load_v]
-value = 0.0057142
+value = 0.005714199
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.recovery_release_v]
-value = 0.008046233
+value = 0.008045338
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.return_phase_excursion_deg]
@@ -1935,6 +2177,12 @@ unit = "deg"
 value = 425591.2
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+op = "32d5cad84e7d1a993a1187390275807150c3dfe218721a28fb782c0f0c7fe3de"
+ac = "614e9a5b55ad9469ba0be1652997cc050cfeb2d32aa1f5cd2ae13c405cbaa189"
+transient = "986f60c2a88aec493eefcca6a63bdb90c75c08c8308743531a45554871732b08"
+voltage = "8b16721a3891c65745b49c7d20bc28069ac8cfe86c39939fcd24cd47bcfa6ae2"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -1978,7 +2226,7 @@ transient = "transient.raw"
 voltage = "voltage.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.input_sha256]
-deck = "ff8649be565ab4994e13a01701e390f06f4c1d06532f78708daf6344cc1846af"
+deck = "ab48ff03c75420371cfbd2ed534417b4f4c664f22e5331dee65a5ad598474157"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.bias_v]
@@ -2002,7 +2250,7 @@ value = -6.412583
 unit = "dB"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.maximum_v]
-value = 1.025424
+value = 1.025401
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.mean_power_w]
@@ -2014,7 +2262,7 @@ value = 0.8443338833206
 unit = "1"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.minimum_v]
-value = 0.9752354
+value = 0.9752386
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.output_v]
@@ -2034,11 +2282,11 @@ value = 0.000145524468531
 unit = "A"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.recovery_load_v]
-value = 0.002639145
+value = 0.002638453
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.recovery_release_v]
-value = 0.002294566
+value = 0.002293677
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.return_phase_excursion_deg]
@@ -2049,6 +2297,12 @@ unit = "deg"
 value = 458663.1
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+op = "cb55b7809055dce14bbe887adb011bb5531e96b2c95b472870bde73c5b164f97"
+ac = "0fdd76c6924d035b7aca82c9348905bd28d9b7954a8bb22c989901844e052912"
+transient = "bf95c2675e1fe0062a472cf9dba7642dbbc507f11f98506949c8a9c88e10d14c"
+voltage = "426d627dd5ddc3e04b636de57ba70d11580f30b0b118daccfa0871b1b6974e1c"
+
 [task.evaluation.pre_layout.jobs.source_startup_0]
 operation = "circuit.simulate"
 
@@ -2073,7 +2327,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_0.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_0.measurements.minimum_v]
@@ -2085,9 +2339,12 @@ value = 0.9970235
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_0.measurements.startup_error_v]
-value = 0.002976453
+value = 0.002976454
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_0.output_sha256]
+transient = "26edde3695068bf24da0435a6b796bf195f1823fffa57da18197af9cf9fedddd"
+
 [task.evaluation.pre_layout.jobs.source_startup_1]
 operation = "circuit.simulate"
 
@@ -2112,7 +2369,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_1.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_1.measurements.minimum_v]
@@ -2120,13 +2377,16 @@ value = 2.09718e-06
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_1.measurements.peak_v]
-value = 0.9989293
+value = 0.9989295
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_1.measurements.startup_error_v]
-value = 0.002976453
+value = 0.002976454
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_1.output_sha256]
+transient = "0a30096d86508d3a579998a8dc6765253b53af2658c55c53649316c61cf2ce50"
+
 [task.evaluation.pre_layout.jobs.source_startup_2]
 operation = "circuit.simulate"
 
@@ -2151,7 +2411,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_2.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_2.measurements.minimum_v]
@@ -2163,9 +2423,12 @@ value = 1.008335
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_2.measurements.startup_error_v]
-value = 0.00833532
+value = 0.008335319
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_2.output_sha256]
+transient = "8a0f4628d548a8ef72680f92d9edc55a921590787ae6329edefd4a5a3e23aaf6"
+
 [task.evaluation.pre_layout.jobs.source_startup_3]
 operation = "circuit.simulate"
 
@@ -2190,7 +2453,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_3.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_3.measurements.minimum_v]
@@ -2202,9 +2465,12 @@ value = 1.013778
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_3.measurements.startup_error_v]
-value = 0.008335321
+value = 0.008335319
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_3.output_sha256]
+transient = "db03ce7d2a38cb5bd169a85655e44568cd89695c2185fa0a1629816a80d8d9e7"
+
 [task.evaluation.pre_layout.jobs.source_startup_4]
 operation = "circuit.simulate"
 
@@ -2229,7 +2495,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_4.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_4.measurements.minimum_v]
@@ -2241,9 +2507,12 @@ value = 0.9978271
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_4.measurements.startup_error_v]
-value = 0.00217294
+value = 0.002172942
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_4.output_sha256]
+transient = "3a763aab2fc96be80c9f34b7a1150f0cdcb21bcbf0166a0c2da32a31ed949fb0"
+
 [task.evaluation.pre_layout.jobs.source_startup_5]
 operation = "circuit.simulate"
 
@@ -2268,7 +2537,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_5.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_5.measurements.minimum_v]
@@ -2280,9 +2549,12 @@ value = 1.005959
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_5.measurements.startup_error_v]
-value = 0.00217294
+value = 0.002172942
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_5.output_sha256]
+transient = "8a2998505eda01e916842770f2f4482c5ffc03e67f193cc956cb0394d82883e5"
+
 [task.evaluation.pre_layout.jobs.source_startup_6]
 operation = "circuit.simulate"
 
@@ -2307,7 +2579,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_6.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_6.measurements.minimum_v]
@@ -2319,9 +2591,12 @@ value = 1.007799
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_6.measurements.startup_error_v]
-value = 0.007799198
+value = 0.007799196
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_6.output_sha256]
+transient = "5fb48eb062a4c59688aa09a8190e6b0101709badacf7854dc797947fd36da832"
+
 [task.evaluation.pre_layout.jobs.source_startup_7]
 operation = "circuit.simulate"
 
@@ -2346,7 +2621,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_7.input_sha256]
-deck = "7018c105aee39d53f5de7123c1607d2cbaa7b9e498693cba9dc4373fdb99e4e3"
+deck = "c45b11e62e4f587496f0b280fd9b7b623371a021bef6bb2f6eb4f795127f129a"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_startup_7.measurements.minimum_v]
@@ -2354,13 +2629,16 @@ value = 2.438187e-06
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_7.measurements.peak_v]
-value = 1.018812
+value = 1.018813
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_startup_7.measurements.startup_error_v]
-value = 0.007799198
+value = 0.007799196
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_7.output_sha256]
+transient = "6dea59b9653a3b809977fe777e2a678a1204b3ae1906fe7a1c639620a3843439"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_0]
 operation = "circuit.simulate"
 
@@ -2387,7 +2665,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_0.input_sha256]
-deck = "d23bc4d7d5f74ba8ccb65945aca0171d0ab04c1b1a8a533a09cefe965c2c10fd"
+deck = "edbcd5a9a41617351ff255002ab3fad040614ddd1f4d7d8710c422aaa030f663"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_0.measurements.headroom_v]
@@ -2406,6 +2684,10 @@ unit = "V"
 value = 0.9730788
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_0.output_sha256]
+line = "d736cfca1ffdd9d4d3acee436ffb815652b018daafc7f1b6b8faa94e23a61953"
+load = "79727399797c0a349c23df5f8dc9cacc89bded983326b7a843644c157d9a74fc"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_1]
 operation = "circuit.simulate"
 
@@ -2432,7 +2714,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_1.input_sha256]
-deck = "d23bc4d7d5f74ba8ccb65945aca0171d0ab04c1b1a8a533a09cefe965c2c10fd"
+deck = "edbcd5a9a41617351ff255002ab3fad040614ddd1f4d7d8710c422aaa030f663"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_1.measurements.headroom_v]
@@ -2451,6 +2733,10 @@ unit = "V"
 value = 0.9917698
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_1.output_sha256]
+line = "3d9132755cc2e7a13ece399d0b3e99fc8444b8d3eff03f17feac22c6d3c6e8ea"
+load = "79727399797c0a349c23df5f8dc9cacc89bded983326b7a843644c157d9a74fc"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_2]
 operation = "circuit.simulate"
 
@@ -2477,7 +2763,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_2.input_sha256]
-deck = "d23bc4d7d5f74ba8ccb65945aca0171d0ab04c1b1a8a533a09cefe965c2c10fd"
+deck = "edbcd5a9a41617351ff255002ab3fad040614ddd1f4d7d8710c422aaa030f663"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_2.measurements.headroom_v]
@@ -2496,6 +2782,10 @@ unit = "V"
 value = 0.9730788
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_2.output_sha256]
+line = "d736cfca1ffdd9d4d3acee436ffb815652b018daafc7f1b6b8faa94e23a61953"
+load = "aba280ec1a4c9e8a83688f47230d66e5455d6f010844bdc863c456e40ea5c8de"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_3]
 operation = "circuit.simulate"
 
@@ -2522,7 +2812,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_3.input_sha256]
-deck = "d23bc4d7d5f74ba8ccb65945aca0171d0ab04c1b1a8a533a09cefe965c2c10fd"
+deck = "edbcd5a9a41617351ff255002ab3fad040614ddd1f4d7d8710c422aaa030f663"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_3.measurements.headroom_v]
@@ -2541,6 +2831,10 @@ unit = "V"
 value = 0.9917698
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_3.output_sha256]
+line = "3d9132755cc2e7a13ece399d0b3e99fc8444b8d3eff03f17feac22c6d3c6e8ea"
+load = "aba280ec1a4c9e8a83688f47230d66e5455d6f010844bdc863c456e40ea5c8de"
+
 [task.evaluation.pre_layout.jobs.source_fast_0]
 operation = "circuit.simulate"
 
@@ -2563,17 +2857,20 @@ fast_tail_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_fast_0.input_sha256]
-deck = "cdede5701638863728fbd3f89a87841d7cf16fa27693e2514ce413053b47bea4"
+deck = "19a534910443f4fdebc71130c309d510c22ce80e03a17b4fccade01d9ce5465f"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_fast_0.measurements.fast_peak_v]
-value = 0.0004886535
+value = 0.0004890927
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_fast_0.measurements.fast_tail_v]
-value = 1.780422e-07
+value = 1.781841e-07
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_fast_0.output_sha256]
+transient = "87f9835bfffddf70e641bb0ddabcb3ab8c967a5014935295387e0e379c33f19b"
+
 [task.evaluation.pre_layout.jobs.source_fast_1]
 operation = "circuit.simulate"
 
@@ -2596,17 +2893,20 @@ fast_tail_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_fast_1.input_sha256]
-deck = "cdede5701638863728fbd3f89a87841d7cf16fa27693e2514ce413053b47bea4"
+deck = "19a534910443f4fdebc71130c309d510c22ce80e03a17b4fccade01d9ce5465f"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_fast_1.measurements.fast_peak_v]
-value = 0.0002317423
+value = 0.0002322362
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_fast_1.measurements.fast_tail_v]
-value = 6.278331e-08
+value = 6.300412e-08
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_fast_1.output_sha256]
+transient = "6802beace471d9cd3ee4b4a8091636fb1f1d6113e2b3fa1da2b0f28f202a401b"
+
 [task.evaluation.pre_layout.jobs.source_fast_2]
 operation = "circuit.simulate"
 
@@ -2629,17 +2929,20 @@ fast_tail_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_fast_2.input_sha256]
-deck = "cdede5701638863728fbd3f89a87841d7cf16fa27693e2514ce413053b47bea4"
+deck = "19a534910443f4fdebc71130c309d510c22ce80e03a17b4fccade01d9ce5465f"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_fast_2.measurements.fast_peak_v]
-value = 0.0004908346
+value = 0.0004913073
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_fast_2.measurements.fast_tail_v]
-value = 1.788685e-07
+value = 1.790332e-07
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_fast_2.output_sha256]
+transient = "10cd44b7aa0eb287d934564b954688406e97e30f75ac5bfa3a77be6264aff37b"
+
 [task.evaluation.pre_layout.jobs.source_fast_3]
 operation = "circuit.simulate"
 
@@ -2662,17 +2965,164 @@ fast_tail_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_fast_3.input_sha256]
-deck = "cdede5701638863728fbd3f89a87841d7cf16fa27693e2514ce413053b47bea4"
+deck = "19a534910443f4fdebc71130c309d510c22ce80e03a17b4fccade01d9ce5465f"
 dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
 
 [task.evaluation.pre_layout.jobs.source_fast_3.measurements.fast_peak_v]
-value = 0.0002368121
+value = 0.0002373362
 unit = "V"
 
 [task.evaluation.pre_layout.jobs.source_fast_3.measurements.fast_tail_v]
-value = 6.331704e-08
+value = 6.359565e-08
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_fast_3.output_sha256]
+transient = "4620258cc4b81838ddcce796a08c42f03ccd6cd5a71115e7f6102f3f976885a3"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0]
+operation = "circuit.simulate"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.inputs]
+deck = "input:psrr"
+dut = "input:simulation"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.parameters.values]
+supply_v = 1.2
+load_a = 0.0001
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.parameters.exports]
+ac = "ac.raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.input_sha256]
+deck = "fafeed362ed7060883e4900e29433ba90ccf45c6a29c0b77316045803093eb70"
+dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.measurements.psrr_1khz_db]
+value = 44.49375
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.measurements.psrr_1mhz_db]
+value = 4.364907
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_0.output_sha256]
+ac = "da00b142e636e7f48d89bbd50015e5f314b2b3a46faa534c076fb3ff90f9e22e"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1]
+operation = "circuit.simulate"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.inputs]
+deck = "input:psrr"
+dut = "input:simulation"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.parameters.values]
+supply_v = 1.2
+load_a = 0.0005
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.parameters.exports]
+ac = "ac.raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.input_sha256]
+deck = "fafeed362ed7060883e4900e29433ba90ccf45c6a29c0b77316045803093eb70"
+dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.measurements.psrr_1khz_db]
+value = 46.28391
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.measurements.psrr_1mhz_db]
+value = 4.544944
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_1.output_sha256]
+ac = "7ed971a685172dcda831aacef77214d1fe1d7f849e34b1464d7b922862a132ef"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2]
+operation = "circuit.simulate"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.inputs]
+deck = "input:psrr"
+dut = "input:simulation"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.parameters.values]
+supply_v = 1.3
+load_a = 0.0001
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.parameters.exports]
+ac = "ac.raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.input_sha256]
+deck = "fafeed362ed7060883e4900e29433ba90ccf45c6a29c0b77316045803093eb70"
+dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.measurements.psrr_1khz_db]
+value = 44.27602
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.measurements.psrr_1mhz_db]
+value = 4.460468
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_2.output_sha256]
+ac = "30393ea58892a94d50dcc777fa5183c35031136db050318583e5c76b78bb9e12"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3]
+operation = "circuit.simulate"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.inputs]
+deck = "input:psrr"
+dut = "input:simulation"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.outputs]
+ac = "ngspice-raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.parameters.values]
+supply_v = 1.3
+load_a = 0.0005
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.parameters.measurements]
+psrr_1khz_db = "dB"
+psrr_1mhz_db = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.parameters.exports]
+ac = "ac.raw"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.input_sha256]
+deck = "fafeed362ed7060883e4900e29433ba90ccf45c6a29c0b77316045803093eb70"
+dut = "67f9c975c8755cd714b85ac3975e2951cb731addcfd3caf8baa3640235afeb99"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.measurements.psrr_1khz_db]
+value = 49.72726
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.measurements.psrr_1mhz_db]
+value = 4.671067
+unit = "dB"
+
+[task.evaluation.pre_layout.jobs.source_psrr_3.output_sha256]
+ac = "b3e9b08650406c87e941f713d806da2aebc0026ea142fc4988082ba7791e8fa4"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -2685,7 +3135,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -2696,7 +3146,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -2709,7 +3159,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -2722,7 +3172,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -2736,7 +3186,7 @@ grid_subdivision = 2
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -2746,7 +3196,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-res-models"
 timeout_seconds = 600
 

tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/materials/fast.spice

@@ -13,11 +13,12 @@ VPROBE sense fb dc 0 ac 1
 IINJ 0 sense dc 0 ac 0
 ILOAD vout 0 dc {load_a} pulse({load_a} {load_a+1u} 1n 5p 5p 1n 200n)
 XDUT vdd vout 0 nbias vref fb sense ldo_008_fer_mirror_ota
+.save v(vout) v(vdd) i(VDD)
 .control
 set numdgt=12
 op
 let baseline_v=v(vout)
-tran 5p 100n 0 5p
+tran 5p 100n 0 25p
 let error_v=abs(v(vout)-op1.baseline_v)
 meas tran fast_peak_v max error_v from=0 to=100n
 meas tran fast_tail_v max error_v from=80n to=100n

tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/materials/psrr.spice

@@ -0,0 +1,27 @@
+* Closed-loop small-signal supply rejection. SPDX-License-Identifier: MIT
+.lib /workspace/support/models/cornerMOSlv.lib mos_tt
+.lib /workspace/support/models/cornerCAP.lib cap_typ
+.lib /workspace/support/models/cornerRES.lib res_typ
+.include parameters.spice
+.include dut.spice
+.temp 27
+.option rshunt=1e12 reltol=1e-5 abstol=1e-14 vntol=1e-8
+VDD vdd 0 dc {supply_v} ac 1
+VREF vref 0 0.5
+IBIAS vdd nbias 20u
+VPROBE sense fb dc 0 ac 0
+IINJ 0 sense dc 0 ac 0
+ILOAD vout 0 dc {load_a}
+XDUT vdd vout 0 nbias vref fb sense ldo_008_fer_mirror_ota
+.save v(vout) v(vdd)
+.control
+set numdgt=12
+op
+ac dec 300 10 10meg
+let psrr_db=db(v(vdd)/v(vout))
+meas ac psrr_1khz_db find psrr_db at=1k
+meas ac psrr_1mhz_db find psrr_db at=1meg
+write ac.raw frequency v(vdd) v(vout) psrr_db
+quit
+.endc
+.end

tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/materials/startup.spice

@@ -12,9 +12,10 @@ IBIAS vdd nbias pwl(0 0 {ramp_s} 20u)
 RLOAD vout 0 {load_ohm}
 VPROBE sense fb 0
 XDUT vdd vout 0 nbias vref fb sense ldo_008_fer_mirror_ota
+.save v(vout) v(vdd) v(vref) i(VDD) i(VREF)
 .control
 set numdgt=12
-tran 2n 30u 0 2n uic
+tran 2n 30u 0 10n uic
 let err=abs(v(vout)-1.0)
 meas tran startup_error_v max err from=25u to=30u
 meas tran peak_v max v(vout) from=0 to=30u

tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/materials/sweeps.spice

@@ -12,6 +12,7 @@ IBIAS vdd nbias 20u
 ILOAD vout 0 {load_a}
 VPROBE sense fb 0
 XDUT vdd vout 0 nbias vref fb sense ldo_008_fer_mirror_ota
+.save v(vout) v(vdd) i(VDD)
 .control
 set numdgt=12
 dc VDD 1.3 0.8 -0.001

tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/materials/testbench.spice

@@ -13,6 +13,7 @@ VPROBE sense fb dc 0 ac 1
 IINJ 0 sense dc 0 ac 0
 ILOAD vout 0 dc {load_a} pulse({load_a} {2*load_a} 2u 20n 20n 8u 16u)
 XDUT vdd vout 0 nbias vref fb sense ldo_008_fer_mirror_ota
+.save v(vout) v(nbias) v(vdd) v(sense) v(fb) i(VDD) i(VPROBE) @iload[current]
 .control
 set numdgt=12
 op
@@ -57,7 +58,7 @@ print minimum_return_distance return_phase_excursion_deg final_phase_margin_deg
 write ac.raw frequency v(sense) v(fb) i(VPROBE) aa bb cc dd transfer forward reverse gain_db phase_deg
 reset
 
-tran 1n 18u 0 1n
+tran 1n 18u 0 5n
 let err=abs(v(vout)-1.0)
 let supply=-v(vdd)*i(VDD)
 meas tran minimum_v min v(vout) from=2u to=18u

tasks/ihp-sg13g2/analog-db/cases/ldo_008_fer_mirror_ota/problem.md

@@ -29,6 +29,7 @@ output-connected capacitance. This is not a claim of zero internal storage.
 - `materials/testbench.spice`: DC bias, bilateral loop measurements and load steps.
 - `materials/startup.spice`: zero-state resistive-load startup.
 - `materials/sweeps.spice`: DC line/load and regulation-headroom sweeps.
+- `materials/psrr.spice`: closed-loop small-signal supply rejection.
 - `materials/fast.spice`: short, finely resolved load-impulse response.
 
 Ordered ports: `vdd vout vss nbias vref fb sense`. VDD/VSS are supply/return;
@@ -47,7 +48,7 @@ parallel finger arrangements require native LVS and every other check to pass.
 Use typical IHP LV MOS, MIM and resistor models at 27 C. Main conditions are
 all combinations of VDD=1.2/1.3 V and initial load 0.1/0.5 mA. The current
 load doubles at 2–2.02 us and returns at 10.02–10.04 us. Run to 18 us with
-1 ns maximum step, Gear order 2, `rshunt=1e12`, `reltol=1e-5`, `abstol=1e-14`
+5 ns maximum step, Gear order 2, `rshunt=1e12`, `reltol=1e-5`, `abstol=1e-14`
 and `vntol=1e-8`. Startup and fast tests use the same accuracy tolerances.
 
 For AC, independent supply/reference/load sources have no AC excitation.
@@ -64,6 +65,16 @@ both directional transmissions and port loading. The old voltage-only
 `−V(FB)/V(SENSE)` is not the accepted loop metric. Reset the circuit before
 transient analysis; neither AC experiment changes its DC or transient topology.
 
+The separate supply-rejection suite uses the same four DC operating points
+(VDD=1.2/1.3 V and ILOAD=0.1/0.5 mA) at 27 C. VDD receives a normalized 1 V
+small-signal AC excitation around each DC value; VREF, IBIAS and ILOAD have zero
+AC excitation. VPROBE remains a zero-volt connection with zero AC magnitude,
+and IINJ is zero, so the feedback loop remains closed. Sweep 10 Hz–10 MHz at
+300 points/decade. At 1 kHz and 1 MHz, measure
+`PSRR=20*log10(abs(VDD/VOUT))` in dB. This is source-paired small-signal
+rejection for the declared external bias fixture, not large-signal ripple
+immunity or rejection of an internal bias generator.
+
 This measures the declared external feedback loop with the internal circuit
 retained. It is not an exhaustive pole proof for all internal device loops or
 an RF/model-validity claim beyond the declared tests. Both first and final crossing phase margins must lie in [0, 180] degrees.
@@ -73,7 +84,7 @@ quality without adding a stability acceptance screen.
 
 Startup uses 1/10 kohm loads and simultaneous linear supply/reference/bias
 ramps from zero over 1/10 us: eight combinations including both supplies.
-Run with `uic`, no internal-node initial conditions, to 30 us with 2 ns
+Run with `uic`, no internal-node initial conditions, to 30 us with 10 ns
 maximum step. Startup qualification is resistive-load and synchronized-ramp
 only, not arbitrary reference sequencing or constant-current startup.
 
@@ -85,7 +96,7 @@ is a boundary probe, not an extended qualified operating range. Separately
 sweep load 0.1–1 mA by 10 uA at each qualified supply, retaining both endpoints.
 
 Fast conditions use the four main DC biases and a +1 uA load pulse beginning
-at 1 ns, 5 ps rise/fall and 1 ns high time. Run 100 ns with 5 ps maximum step.
+at 1 ns, 5 ps rise/fall and 1 ns high time. Run 100 ns with 25 ps maximum step.
 It probes fast recovery around the solved operating point without modifying
 compensation, adding an output capacitor or clamping an internal node.
 
@@ -107,43 +118,23 @@ signoff and arbitrary-load stability are outside qualification.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-Measurement definitions below use the supplied SPICE node/source names.
-`v(n)` is node voltage and `i(V)` is current into a voltage source; delivered
-power therefore uses a minus sign. `db(z)=20*log10(abs(z))`, `mag/abs`
-denote magnitude, and `cph` is continuous phase in radians. `find`, `when`,
-`from/to`, and `rise/fall` retain the deck's interpolation, window and
-crossing conventions; SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/
-milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv`
-mean the stated window average, extrema and sampled derivative. All
-declared conditions are measured separately and paired with the same
-source condition; a group uses its worst paired quality.
-
-| Metric | Definition / observations | Unit | Quality rule | Functional bounds | Scale | Dimension |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations remain required evidence. The explicit quality targets below supply scoring anchors; otherwise the paired source value is used. Reports retain every paired result.
+
+Let x be the post-layout measurement and b the declared quality target, or the same-condition source measurement when no target is declared:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_target / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Joint attainment of the electrical and area goals scores 100 points; a feasible reference may score far below 100, and better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+The measurements below use the supplied SPICE node and source names. `v(n)` is a node voltage; `i(V)` is current flowing into a voltage source, so delivered power uses a negative sign. `db(z)=20*log10(abs(z))`; `mag/abs` denote magnitude, and `cph` denotes continuous phase in radians. `find`, `when`, `from/to` and `rise/fall` follow the deck's interpolation, window and crossing conventions. SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv` represent window averages, extrema and sampled derivatives. Measure each operating condition independently, pair it with the source result under that condition, and take the worst paired quality within each metric group.
+
+For metrics declaring `saturating_ratio`, q = 2(b+s)/(b+x+2*s), using the quality anchor b and the positive scale s in the metric’s units. Equality to the anchor gives quality 1; improvements approach 2. Normalize each condition before selecting the worst quality. These scales and targets do not add acceptance cutoffs.
+
+The functional voltage envelope is unipolar 0 to 1.3 V; reversed polarity or operation beyond the supplied rail is outside the regulator interface. The first and final unity crossings must retain the stable 0 to 180 degree negative-feedback phase-margin branch. Net supply consumption and headroom must be nonnegative for this non-boosting regulator. Magnitudes, absolute errors, ranges and physical crossing coordinates must represent their declared measurement domains; missing crossings remain measurement errors. These functional/domain bounds have explicit rationales in `case.toml`. Their positive values remain quality objectives, with no minimum quality score or additional performance cutoff.
+
+| Metric | Definition / observation | Unit | Quality normalization | Functional range | Scale | Dimension |
 | --- | --- | --- | --- | --- | --- | --- |
 | `output_v` | DC operating point: `v(vout)`. | V | target / target | 0 … 1.3 | 1.3 | bias |
 | `bias_v` | DC operating point: `v(nbias)`. | V | target / target | 0 … 1.3 | 1.3 | bias |
@@ -151,66 +142,55 @@ source condition; a group uses its worst paired quality.
 | `power_w` | DC operating point: `-v(vdd)*i(VDD)`. | W | minimize / ratio | 0 … +∞ | 1e-12 | supply |
 | `dc_gain_db` | AC: Value of `(db((T))) at=0.01`. | dB | maximize / db20 | −∞ … +∞ | — | response |
 | `unity_hz` | AC: Crossing coordinate where `(db((T)))=0 fall=1`. | Hz | maximize / ratio | 0 … +∞ | — | response |
-| `phase_margin_deg` | AC: `180+(find (180*cph((T))/pi) when (db((T)))=0 fall=1)`. | deg | target / target | 0 … 180 | 180 | response |
+| `phase_margin_deg` | AC: `180+(find (180*cph((T))/pi) when (db((T)))=0 fall=1)`. | deg | target / target | 0 … 180 | 10 | response |
 | `final_unity_hz` | AC: Crossing coordinate where `(db((T)))=0 fall=last`. | Hz | maximize / ratio | 0 … +∞ | — | response |
-| `final_phase_margin_deg` | AC: `180+(find (180*cph((T))/pi) when (db((T)))=0 fall=last)`. | deg | target / target | 0 … 180 | 180 | response |
-| `minimum_return_distance` | AC: `vecmin((mag(1+(T))))`; sweep `dec 300 0.01 1g`. | 1 | target / target | 0 … +∞ | 1.0 | response |
+| `final_phase_margin_deg` | AC: `180+(find (180*cph((T))/pi) when (db((T)))=0 fall=last)`. | deg | target / target | 0 … 180 | 10 | response |
+| `minimum_return_distance` | AC: `vecmin((mag(1+(T))))`; sweep `dec 300 0.01 1g`. | 1 | target / target | 0 … +∞ | 1 | response |
 | `return_phase_excursion_deg` | AC: `vecmax(abs(180*cph(1+(T))/pi))`; sweep `dec 300 0.01 1g`. | deg | minimize / ratio | 0 … +∞ | 1e-12 | response |
 | `hf_gain_db` | AC: Maximum of `(db((T))) from=200meg to=1g`. | dB | minimize / db20 | −∞ … +∞ | — | response |
+| `psrr_1khz_db` | PSRR deck: `20*log10(abs(VDD/VOUT))` at 1 kHz for all four VDD/ILOAD DC combinations. | dB | maximize / db20 | −∞ … +∞ | — | response |
+| `psrr_1mhz_db` | PSRR deck: `20*log10(abs(VDD/VOUT))` at 1 MHz for all four VDD/ILOAD DC combinations. | dB | maximize / db20 | −∞ … +∞ | — | response |
 | `minimum_v` | TRAN: Minimum of `v(vout) from=2u to=18u`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `maximum_v` | TRAN: Maximum of `v(vout) from=2u to=18u`. | V | target / target | 0 … 1.3 | 1.3 | response |
-| `recovery_load_v` | TRAN: Maximum of `(abs(v(vout)-1.0)) from=5u to=9.5u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `recovery_release_v` | TRAN: Maximum of `(abs(v(vout)-1.0)) from=13u to=17.5u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `recovery_load_v` | TRAN: Maximum of `(abs(v(vout)-1.0)) from=5u to=9.5u`. | V | minimize / saturating_ratio | 0 … +∞ | 0.0005 | response |
+| `recovery_release_v` | TRAN: Maximum of `(abs(v(vout)-1.0)) from=13u to=17.5u`. | V | minimize / saturating_ratio | 0 … +∞ | 0.0005 | response |
 | `mean_power_w` | TRAN: Mean of `(-v(vdd)*i(VDD)) from=2u to=18u`. | W | minimize / ratio | 0 … +∞ | 1e-12 | supply |
-| `startup_error_v` | TRAN: Maximum of `(abs(v(vout)-1.0)) from=25u to=30u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `startup_error_v` | TRAN: Maximum of `(abs(v(vout)-1.0)) from=25u to=30u`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 | `startup_peak_v` | TRAN: Maximum of `v(vout) from=0 to=30u`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `startup_minimum_v` | TRAN: Minimum of `v(vout) from=0 to=30u`. | V | target / target | −∞ … +∞ | 1.3 | response |
 | `regulation_floor_v` | DC: Crossing coordinate where `(abs(v(vout)-1.0))=0.03 rise=1`. | V | target / target | 0 … 1.3 | 1.3 | response |
-| `headroom_v` | DC sweep: `(when (abs(v(vout)-1.0))=0.03 rise=1)-(find v(vout) when (abs(v(vout)-1.0))=0.03 rise=1)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `line_span_v` | DC sweep: `(max v(vout) from=1.3 to=1.2)-(min v(vout) from=1.3 to=1.2)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `load_span_v` | DC sweep: `(max v(vout))-(min v(vout))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `headroom_v` | DC sweep: `(when (abs(v(vout)-1.0))=0.03 rise=1)-(find v(vout) when (abs(v(vout)-1.0))=0.03 rise=1)`. | V | minimize / ratio | 0 … +∞ | 0.001 | response |
+| `line_span_v` | DC sweep: `(max v(vout) from=1.3 to=1.2)-(min v(vout) from=1.3 to=1.2)`. | V | minimize / saturating_ratio | 0 … +∞ | 0.0001 | response |
+| `load_span_v` | DC sweep: `(max v(vout))-(min v(vout))`. | V | minimize / saturating_ratio | 0 … +∞ | 0.001 | response |
 | `fast_peak_v` | Maximum absolute deviation of transient VOUT from its initial DC operating-point value over 0–100 ns in the fast load-pulse deck. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `fast_tail_v` | The same absolute deviation from initial DC VOUT over 80–100 ns. | V | target / target | 0 … 1.3 | 1.3 | response |
 
-Area reference: **172708.78 um2**. 126 expanded device instances; sum of device/contact envelopes 114596.5905 um2, per-side envelope allowance 0.6 um, 50% routing allowance and total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across two opposite sides; the envelope sum is displayed rounded to four decimals. MOS/passive envelopes use declared W/L (or resistor dimensions) and multiplicity; explicit tap areas and HBT emitter/contact envelopes are included. This is a frozen engineering estimate, not a foundry minimum or a feasibility claim.
-
-The capability coefficient remains **9**; it is independent of
-the reference-relative task score.
-
-
-### Score weights
-
-IHP regulators: regulation and headroom 22.5%; load recovery 22.5%; startup 13.5%; loop stability 13.5%; AC transfer and extrema 4.5%; internal bias 1.8%; quiescent current 7.2%; power 4.5%; area 10%. Each objective's weight is divided equally among its metrics.
-
-| Metric | Weight |
-| --- | ---: |
-| `functional_area` | 0.1 |
-| `headroom_v` | 0.045000000000 |
-| `line_span_v` | 0.045000000000 |
-| `load_span_v` | 0.045000000000 |
-| `output_v` | 0.045000000000 |
-| `regulation_floor_v` | 0.045000000000 |
-| `recovery_load_v` | 0.112500000000 |
-| `recovery_release_v` | 0.112500000000 |
-| `startup_error_v` | 0.045000000000 |
-| `startup_minimum_v` | 0.045000000000 |
-| `startup_peak_v` | 0.045000000000 |
-| `final_phase_margin_deg` | 0.033750000000 |
-| `minimum_return_distance` | 0.033750000000 |
-| `phase_margin_deg` | 0.033750000000 |
-| `return_phase_excursion_deg` | 0.033750000000 |
-| `dc_gain_db` | 0.005625000000 |
-| `fast_peak_v` | 0.005625000000 |
-| `fast_tail_v` | 0.005625000000 |
-| `final_unity_hz` | 0.005625000000 |
-| `hf_gain_db` | 0.005625000000 |
-| `maximum_v` | 0.005625000000 |
-| `minimum_v` | 0.005625000000 |
-| `unity_hz` | 0.005625000000 |
-| `bias_v` | 0.018000000000 |
-| `quiescent_a` | 0.072000000000 |
-| `mean_power_w` | 0.022500000000 |
-| `power_w` | 0.022500000000 |
+
+The capability coefficient is **9**, independent of this task's reference-normalized score.
+
+### Quality targets and weights
+
+The area quality target is **70000 um2**, independent of the current feasibility witness. It is not a hard area limit or a process minimum.
+
+The 70000 um2 footprint carries 35%. Load/release recovery carry 15%/10%; load span 10%; line span, headroom, each PSRR frequency and quiescent current carry 5% each. First and final phase-margin preservation share 5% with 10-degree scales. The 5 mV recovery, 1 mV line span, 10 mV load span and 20 mV headroom goals are explicit quality goals. Startup extrema and repeated power/loop summaries remain diagnostic; all functional startup and stability checks remain.
+
+| Metric | Quality anchor | Unit | Scale | Weight |
+| --- | --- | --- | --- | ---: |
+| `functional_area` | 70000 | um2 | — | 0.35 |
+| `headroom_v` | 0.02 | V | 0.001 | 0.05 |
+| `line_span_v` | 0.001 | V | 0.0001 | 0.05 |
+| `load_span_v` | 0.01 | V | 0.001 | 0.1 |
+| `psrr_1khz_db` | paired source | dB | — | 0.05 |
+| `psrr_1mhz_db` | paired source | dB | — | 0.05 |
+| `recovery_load_v` | 0.005 | V | 0.0005 | 0.15 |
+| `recovery_release_v` | 0.005 | V | 0.0005 | 0.1 |
+| `final_phase_margin_deg` | paired source | deg | 10 | 0.025 |
+| `phase_margin_deg` | paired source | deg | 10 | 0.025 |
+| `quiescent_a` | paired source | A | 1e-12 | 0.05 |
+
+Zero-weight paired diagnostics: `output_v`, `regulation_floor_v`, `startup_error_v`, `startup_minimum_v`, `startup_peak_v`, `minimum_return_distance`, `return_phase_excursion_deg`, `dc_gain_db`, `fast_peak_v`, `fast_tail_v`, `final_unity_hz`, `hf_gain_db`, `maximum_v`, `minimum_v`, `unity_hz`, `bias_v`, `mean_power_w`, `power_w`. All unweighted measurements and functional requirements remain checked.
+
+The targets above affect continuous quality only. A complete feasible reference is allowed to miss them; there is no minimum qualifying score.
 
 ## Tools and Submission
 

tasks/ihp-sg13g2/analog-db/cases/ldo_009_fer_5t_pass/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.ldo_009_fer_5t_pass"
 title = "Unity-Feedback Regulator with Internal Output Storage"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "a279f4b3ed0723afb7820726864463091b3e798ef96c9d02c538d0f58ef61775"
+sha256 = "f4e11e7de05a4ed825aadc39c01100ba0c80d50e284936738d4eab157e3e49f6"
 
 [[assets]]
 path = "reference/ldo_009_fer_5t_pass.gds"
@@ -28,18 +28,18 @@ environment = "ihp-sg13g2-ldo_009_fer_5t_pass-nominal-rc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "c12dbc0a1d5ecd04385f67eb6fb1d0c6d08da88996514b2ad90a365cfe368609"
+sha256 = "26e4b028ddd752a1de8c3e787cc03f3e21396dce0c6773acfb25014fca52cff7"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "1788fa17f1811dd7e6596e6edc5c2edde837c878b590084fd239855c89ba50a4"
 subcircuit = "ldo_009_fer_5t_pass"
+sha256 = "1788fa17f1811dd7e6596e6edc5c2edde837c878b590084fd239855c89ba50a4"
 
 [task.inputs.performance]
 path = "materials/testbench.spice"
 format = "spice"
-sha256 = "c84213af26654bd33e11f941270548ecc5c2dd4a3e9dde78636967710c66e7a4"
+sha256 = "2f5773c21c686c495a1d8aa1e0c5bca1f9412065ad4093fa5ce6d7600708a25c"
 
 [task.inputs.simulation]
 path = "materials/circuit.spice"
@@ -49,12 +49,12 @@ sha256 = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 [task.inputs.startup]
 path = "materials/startup.spice"
 format = "spice"
-sha256 = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+sha256 = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 
 [task.inputs.sweeps]
 path = "materials/sweeps.spice"
 format = "spice"
-sha256 = "d6c1c67a33cef7e7db4fc16929a88dc1abe4a445aab46cd7723dc5d6eb72b414"
+sha256 = "1eca6b13dc3c9c0bea2e27060c11dfb192cb7fc8d8e5d3ed4c41ec7978783c01"
 
 [task.constraints]
 quality = [
@@ -850,8 +850,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "bias_v"
@@ -874,8 +877,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "quiescent_a"
@@ -897,9 +903,12 @@ baseline = [
     "source_condition_3:quiescent_a",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "power_w"
 category = "performance"
@@ -920,9 +929,12 @@ baseline = [
     "source_condition_3:power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "dc_gain_db"
 category = "performance"
@@ -964,7 +976,10 @@ baseline = [
     "source_condition_3:unity_hz",
 ]
 normalization = "ratio"
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The observed frequency or ordered-event interval has a nonnegative measurement domain, and its required crossing must exist for a usable observation."
 
 [[task.evaluation.metrics]]
 id = "phase_margin_deg"
@@ -987,8 +1002,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 180
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 180
+rationale = "The declared negative-feedback loop must stay on the measured 0 to 180 degree stable-feedback branch at the required unity crossing; the amount of positive phase margin remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "minimum_v"
@@ -1011,8 +1029,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "maximum_v"
@@ -1035,8 +1056,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "recovery_load_v"
@@ -1057,10 +1081,13 @@ baseline = [
     "source_condition_2:recovery_load_v",
     "source_condition_3:recovery_load_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "recovery_release_v"
 category = "performance"
@@ -1080,10 +1107,13 @@ baseline = [
     "source_condition_2:recovery_release_v",
     "source_condition_3:recovery_release_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "mean_power_w"
 category = "performance"
@@ -1104,9 +1134,12 @@ baseline = [
     "source_condition_3:mean_power_w",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-12
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
 [[task.evaluation.metrics]]
 id = "startup_error_v"
 category = "performance"
@@ -1134,10 +1167,13 @@ baseline = [
     "source_startup_6:startup_error_v",
     "source_startup_7:startup_error_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "startup_peak_v"
 category = "performance"
@@ -1167,8 +1203,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "startup_minimum_v"
@@ -1221,8 +1260,11 @@ baseline = [
 ]
 normalization = "target"
 scale = 1.3
+
+[task.evaluation.metrics.requirement]
 lower = 0
 upper = 1.3
+rationale = "The declared node voltage or voltage span must remain within its ground-to-supply operating envelope; precision relative to the source remains a scored objective."
 
 [[task.evaluation.metrics]]
 id = "headroom_v"
@@ -1245,7 +1287,10 @@ baseline = [
 ]
 normalization = "ratio"
 scale = 1e-06
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
 
 [[task.evaluation.metrics]]
 id = "line_span_v"
@@ -1266,9 +1311,12 @@ baseline = [
     "source_sweeps_2:line_span_v",
     "source_sweeps_3:line_span_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
 
 [[task.evaluation.metrics]]
 id = "load_span_v"
@@ -1289,15 +1337,18 @@ baseline = [
     "source_sweeps_2:load_span_v",
     "source_sweeps_3:load_span_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 1e-06
+
+[task.evaluation.metrics.requirement]
 lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "d85ca1bee37b6f82346ed01a1dccea60e258f0a0bb15c746d60f861bad13edcb"
+source_report_sha256 = "2fc0f3dbd5a0ae18c4450f187eb4cbc47b04837dd709d3570eb7c1b6bbb1e7ed"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:6562558774d43c085a289bbba696c55959eb8051a0996f96633451fbeb9c652d\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"d2b4333ef2207319c48c845f3888e9159cbfdd0398551f93d78d208944e36156\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -1335,7 +1386,7 @@ ac = "ac.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.input_sha256]
-deck = "c84213af26654bd33e11f941270548ecc5c2dd4a3e9dde78636967710c66e7a4"
+deck = "2f5773c21c686c495a1d8aa1e0c5bca1f9412065ad4093fa5ce6d7600708a25c"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_condition_0.measurements.bias_v]
@@ -1386,6 +1437,11 @@ unit = "V"
 value = 3238258.0
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+op = "091872bc0f151f404c55acb1588e312f8b6cbdcdaf92f0380ad22768e0053a90"
+ac = "ba32e12db14b649abc69b957d5bbc8951462dea21bf01398807dca3010d62d18"
+transient = "ee318f9bda27425814f929aec5a95b1e2358b4322adbfdd66371d38778e62dac"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -1422,7 +1478,7 @@ ac = "ac.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.input_sha256]
-deck = "c84213af26654bd33e11f941270548ecc5c2dd4a3e9dde78636967710c66e7a4"
+deck = "2f5773c21c686c495a1d8aa1e0c5bca1f9412065ad4093fa5ce6d7600708a25c"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_condition_1.measurements.bias_v]
@@ -1473,6 +1529,11 @@ unit = "V"
 value = 4054834.0
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+op = "79a29d31d44b1bd22f017ec887aacb4bf211980d0838e2ae5f9ac9acaed76733"
+ac = "b94e3f4b262ba70992089d3af177f2d442a04abad52c7ae1572d4ea9854c90d0"
+transient = "be833f89037bf54c0db98d3eb8141bfb8ea06570413aa20687f319a4c03f6d08"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -1509,7 +1570,7 @@ ac = "ac.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.input_sha256]
-deck = "c84213af26654bd33e11f941270548ecc5c2dd4a3e9dde78636967710c66e7a4"
+deck = "2f5773c21c686c495a1d8aa1e0c5bca1f9412065ad4093fa5ce6d7600708a25c"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_condition_2.measurements.bias_v]
@@ -1560,6 +1621,11 @@ unit = "V"
 value = 4806067.0
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+op = "e2872493377a6accd84aa7f6731900d8cf729d8853d54f83f92575ce4d800a38"
+ac = "c1dd87fba703ac83460b47e6a76909c4f0d3eb0fd438d205746d70ea7bdc9e00"
+transient = "a62426a71872ec198e52edbe1e5ef31d87ed9f8cf89dfd1760a1492e93c292a5"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -1596,7 +1662,7 @@ ac = "ac.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.input_sha256]
-deck = "c84213af26654bd33e11f941270548ecc5c2dd4a3e9dde78636967710c66e7a4"
+deck = "2f5773c21c686c495a1d8aa1e0c5bca1f9412065ad4093fa5ce6d7600708a25c"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_condition_3.measurements.bias_v]
@@ -1647,6 +1713,11 @@ unit = "V"
 value = 5728183.0
 unit = "Hz"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+op = "2ae1304300b123b04b89fe3e9245d16a7c04da7e980a3ee381a38b9afbb28aa0"
+ac = "e9e560d7ed8de4b8ac76ba675a3a774c0fb2cd3d1a0ba31269937130fa60febf"
+transient = "73397bbe7052dbdfe4f0bd386d522472ea4bca78b5cbeb041c93fbf377839ba2"
+
 [task.evaluation.pre_layout.jobs.source_startup_0]
 operation = "circuit.simulate"
 
@@ -1671,7 +1742,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_0.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_0.measurements.minimum_v]
@@ -1686,6 +1757,9 @@ unit = "V"
 value = 0.004095411
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_0.output_sha256]
+transient = "68345de58493ea4c83ba610182359b3b4b6c0260edadeb62ddb64826ed216765"
+
 [task.evaluation.pre_layout.jobs.source_startup_1]
 operation = "circuit.simulate"
 
@@ -1710,7 +1784,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_1.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_1.measurements.minimum_v]
@@ -1725,6 +1799,9 @@ unit = "V"
 value = 0.004095411
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_1.output_sha256]
+transient = "436c6d2a2d9527b5a7d2f7828a199b5520ccd0c51217d93e86f19d671578a339"
+
 [task.evaluation.pre_layout.jobs.source_startup_2]
 operation = "circuit.simulate"
 
@@ -1749,7 +1826,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_2.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_2.measurements.minimum_v]
@@ -1764,6 +1841,9 @@ unit = "V"
 value = 0.02267805
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_2.output_sha256]
+transient = "9149d1ee84caf4a3dbc40502266c72c74bbdb22820f74c7e248a2ce14a6c5cc9"
+
 [task.evaluation.pre_layout.jobs.source_startup_3]
 operation = "circuit.simulate"
 
@@ -1788,7 +1868,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_3.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_3.measurements.minimum_v]
@@ -1803,6 +1883,9 @@ unit = "V"
 value = 0.02267805
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_3.output_sha256]
+transient = "e29cba3b60b70635f4ff3a417a4c1ab5071fa2d02b08a7080bd4801137ca6d45"
+
 [task.evaluation.pre_layout.jobs.source_startup_4]
 operation = "circuit.simulate"
 
@@ -1827,7 +1910,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_4.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_4.measurements.minimum_v]
@@ -1842,6 +1925,9 @@ unit = "V"
 value = 0.002141717
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_4.output_sha256]
+transient = "f3e5c88363a577f2b392426f220eb4da00f7ad8850240f04e26770d66f07d695"
+
 [task.evaluation.pre_layout.jobs.source_startup_5]
 operation = "circuit.simulate"
 
@@ -1866,7 +1952,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_5.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_5.measurements.minimum_v]
@@ -1881,6 +1967,9 @@ unit = "V"
 value = 0.002141717
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_5.output_sha256]
+transient = "19e6b2c1f1ce9050938f0e2fed3e9989ba236ca3ba780062ea1e9ee4c0d2f4a6"
+
 [task.evaluation.pre_layout.jobs.source_startup_6]
 operation = "circuit.simulate"
 
@@ -1905,7 +1994,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_6.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_6.measurements.minimum_v]
@@ -1920,6 +2009,9 @@ unit = "V"
 value = 0.01440403
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_6.output_sha256]
+transient = "0480fda8a71dff0deef632546ceff757fe35d9060188ccc591e2a1603277db93"
+
 [task.evaluation.pre_layout.jobs.source_startup_7]
 operation = "circuit.simulate"
 
@@ -1944,7 +2036,7 @@ minimum_v = "V"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_startup_7.input_sha256]
-deck = "baa06b4c3f35a5cc0c2254f0dc4d75f247c7f1c707449444d0cb266f053c57f3"
+deck = "0e92bcbeba0c8e7ba39bcd5ba0ed0061fda2ad6439a9847e11b74cc8c825b132"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_startup_7.measurements.minimum_v]
@@ -1959,6 +2051,9 @@ unit = "V"
 value = 0.01440403
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_startup_7.output_sha256]
+transient = "49f5c58d565e4c5159d63801c77ddeef22a5c7b3f37f0b0446d6df654b5f93ea"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_0]
 operation = "circuit.simulate"
 
@@ -1985,7 +2080,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_0.input_sha256]
-deck = "d6c1c67a33cef7e7db4fc16929a88dc1abe4a445aab46cd7723dc5d6eb72b414"
+deck = "1eca6b13dc3c9c0bea2e27060c11dfb192cb7fc8d8e5d3ed4c41ec7978783c01"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_0.measurements.headroom_v]
@@ -2004,6 +2099,10 @@ unit = "V"
 value = 1.184926
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_0.output_sha256]
+line = "dd4b9579edf9a0402b50ed9b27b89783253c446dced904af4449dc13bdfbcea8"
+load = "1344720a12813cc4d3e4ed8693c3926f835db36b5bd3d3d81b30661089210576"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_1]
 operation = "circuit.simulate"
 
@@ -2030,7 +2129,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_1.input_sha256]
-deck = "d6c1c67a33cef7e7db4fc16929a88dc1abe4a445aab46cd7723dc5d6eb72b414"
+deck = "1eca6b13dc3c9c0bea2e27060c11dfb192cb7fc8d8e5d3ed4c41ec7978783c01"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_1.measurements.headroom_v]
@@ -2049,6 +2148,10 @@ unit = "V"
 value = 1.029643
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_1.output_sha256]
+line = "3915b1539aa88ed74c0dc9e64e7ba48b4d8061d4abb4ce531cc04c8e491f8e97"
+load = "1344720a12813cc4d3e4ed8693c3926f835db36b5bd3d3d81b30661089210576"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_2]
 operation = "circuit.simulate"
 
@@ -2075,7 +2178,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_2.input_sha256]
-deck = "d6c1c67a33cef7e7db4fc16929a88dc1abe4a445aab46cd7723dc5d6eb72b414"
+deck = "1eca6b13dc3c9c0bea2e27060c11dfb192cb7fc8d8e5d3ed4c41ec7978783c01"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_2.measurements.headroom_v]
@@ -2094,6 +2197,10 @@ unit = "V"
 value = 1.184926
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_2.output_sha256]
+line = "dd4b9579edf9a0402b50ed9b27b89783253c446dced904af4449dc13bdfbcea8"
+load = "3c34fdde2505ca1f9936e1a4bd8509c95c8ff5137544d5d668e0e49bf1186979"
+
 [task.evaluation.pre_layout.jobs.source_sweeps_3]
 operation = "circuit.simulate"
 
@@ -2120,7 +2227,7 @@ line = "line.raw"
 load = "load.raw"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_3.input_sha256]
-deck = "d6c1c67a33cef7e7db4fc16929a88dc1abe4a445aab46cd7723dc5d6eb72b414"
+deck = "1eca6b13dc3c9c0bea2e27060c11dfb192cb7fc8d8e5d3ed4c41ec7978783c01"
 dut = "d92b6fe6a5f22380be4b7663ffcaaef72f5a0c76e79177a57801c24554157a54"
 
 [task.evaluation.pre_layout.jobs.source_sweeps_3.measurements.headroom_v]
@@ -2139,6 +2246,10 @@ unit = "V"
 value = 1.029643
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_sweeps_3.output_sha256]
+line = "3915b1539aa88ed74c0dc9e64e7ba48b4d8061d4abb4ce531cc04c8e491f8e97"
+load = "3c34fdde2505ca1f9936e1a4bd8509c95c8ff5137544d5d668e0e49bf1186979"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -2151,7 +2262,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -2162,7 +2273,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -2175,7 +2286,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -2188,7 +2299,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -2202,7 +2313,7 @@ grid_subdivision = 2
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -2212,7 +2323,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-res-models"
 timeout_seconds = 600
 

tasks/ihp-sg13g2/analog-db/cases/ldo_009_fer_5t_pass/materials/startup.spice

@@ -14,6 +14,7 @@ VPROBE sense vout 0
 XDUT vdd vout 0 nbias ref0 sense ldo_009_fer_5t_pass
 .control
 set numdgt=12
+save i(vdd) i(vref) v(ref0) v(vdd) v(vout)
 tran 2n 30u 0 2n uic
 let err=abs(v(vout)-0.9)
 meas tran startup_error_v max err from=25u to=30u

tasks/ihp-sg13g2/analog-db/cases/ldo_009_fer_5t_pass/materials/sweeps.spice

@@ -14,6 +14,7 @@ VPROBE sense vout 0
 XDUT vdd vout 0 nbias ref0 sense ldo_009_fer_5t_pass
 .control
 set numdgt=12
+save v(vout)
 dc VDD 1.3 0.8 -0.001
 let error_v=abs(v(vout)-0.9)
 meas dc regulation_floor_v when error_v=0.03 rise=1

tasks/ihp-sg13g2/analog-db/cases/ldo_009_fer_5t_pass/materials/testbench.spice

@@ -21,6 +21,7 @@ let quiescent_a=-i(VDD)-@iload[current]
 let bias_v=v(nbias)
 print output_v power_w quiescent_a bias_v
 write op.raw v(vout) v(nbias) i(VDD) @iload[current]
+save i(vdd) v(nbias) v(sense) v(vdd) v(vout)
 ac dec 150 0.01 1g
 let transfer=-v(vout)/v(sense)
 let gain_db=db(transfer)

tasks/ihp-sg13g2/analog-db/cases/ldo_009_fer_5t_pass/problem.md

@@ -23,7 +23,6 @@ and 0.9 V reference are external. The raw zero-volt loop measurement source
 becomes an external zero-volt link between distinct output and sense ports;
 it is not a manufactured voltage-source device or an ideal common-mode servo.
 
-
 ## Inputs and Interface
 
 - `materials/circuit.cdl`: authoritative native LVS circuit.
@@ -97,43 +96,21 @@ fabrication signoff remain unqualified.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-Measurement definitions below use the supplied SPICE node/source names.
-`v(n)` is node voltage and `i(V)` is current into a voltage source; delivered
-power therefore uses a minus sign. `db(z)=20*log10(abs(z))`, `mag/abs`
-denote magnitude, and `cph` is continuous phase in radians. `find`, `when`,
-`from/to`, and `rise/fall` retain the deck's interpolation, window and
-crossing conventions; SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/
-milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv`
-mean the stated window average, extrema and sampled derivative. All
-declared conditions are measured separately and paired with the same
-source condition; a group uses its worst paired quality.
-
-| Metric | Definition / observations | Unit | Quality rule | Functional bounds | Scale | Dimension |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations define the 100-point electrical baseline without depending on the submitted GDS; reports retain every paired result.
+
+Let x be the post-layout measurement and b the source-circuit measurement under the same conditions:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_reference / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Matching source-circuit performance at the reference area scores 100 points; better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+The measurements below use the supplied SPICE node and source names. `v(n)` is a node voltage; `i(V)` is current flowing into a voltage source, so delivered power uses a negative sign. `db(z)=20*log10(abs(z))`; `mag/abs` denote magnitude, and `cph` denotes continuous phase in radians. `find`, `when`, `from/to` and `rise/fall` follow the deck's interpolation, window and crossing conventions. SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv` represent window averages, extrema and sampled derivatives. Measure each operating condition independently, pair it with the source result under that condition, and take the worst paired quality within each metric group.
+
+`startup_error_v`, `recovery_load_v`, `recovery_release_v`, `line_span_v`, `load_span_v` use `saturating_ratio`: q = 2(b+s)/(b+x+2s), where x is candidate error, b is paired source error and s is the positive scale below. Source equivalence gives q=1; improvement approaches the upper limit 2 with diminishing returns. s retains the declared units and numeric-floor meaning; normalize each condition before taking the worst quality, and apply other rules as declared.
+
+| Metric | Definition / observation | Unit | Quality normalization | Functional range | Scale | Dimension |
 | --- | --- | --- | --- | --- | --- | --- |
 | `output_v` | DC operating point: `v(vout)`. | V | target / target | 0 … 1.3 | 1.3 | bias |
 | `bias_v` | DC operating point: `v(nbias)`. | V | target / target | 0 … 1.3 | 1.3 | bias |
@@ -144,26 +121,24 @@ source condition; a group uses its worst paired quality.
 | `phase_margin_deg` | AC: `180+(find (180*cph((-v(vout)/v(sense)))/pi) when (db((-v(vout)/v(sense))))=0 fall=1)`. | deg | target / target | 0 … 180 | 180 | response |
 | `minimum_v` | TRAN: Minimum of `v(vout) from=2u to=18u`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `maximum_v` | TRAN: Maximum of `v(vout) from=2u to=18u`. | V | target / target | 0 … 1.3 | 1.3 | response |
-| `recovery_load_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=5u to=9.5u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `recovery_release_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=13u to=17.5u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `recovery_load_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=5u to=9.5u`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `recovery_release_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=13u to=17.5u`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 | `mean_power_w` | TRAN: Mean of `(-v(vdd)*i(VDD)) from=2u to=18u`. | W | minimize / ratio | 0 … +∞ | 1e-12 | supply |
-| `startup_error_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=25u to=30u`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `startup_error_v` | TRAN: Maximum of `(abs(v(vout)-0.9)) from=25u to=30u`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 | `startup_peak_v` | TRAN: Maximum of `v(vout) from=0 to=30u`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `startup_minimum_v` | TRAN: Minimum of `v(vout) from=0 to=30u`. | V | target / target | −∞ … +∞ | 1.3 | response |
 | `regulation_floor_v` | DC: Crossing coordinate where `(abs(v(vout)-0.9))=0.03 rise=1`. | V | target / target | 0 … 1.3 | 1.3 | response |
 | `headroom_v` | DC sweep: `(when (abs(v(vout)-0.9))=0.03 rise=1)-0.9`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `line_span_v` | DC sweep: `(max v(vout) from=1.3 to=1.2)-(min v(vout) from=1.3 to=1.2)`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `load_span_v` | DC sweep: `(max v(vout))-(min v(vout))`. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-
-Area reference: **65470.09 um2**. 54 expanded device instances; sum of device/contact envelopes 43312.7759 um2, per-side envelope allowance 0.6 um, 50% routing allowance and total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across two opposite sides; the envelope sum is displayed rounded to four decimals. MOS/passive envelopes use declared W/L (or resistor dimensions) and multiplicity; explicit tap areas and HBT emitter/contact envelopes are included. This is a frozen engineering estimate, not a foundry minimum or a feasibility claim.
+| `line_span_v` | DC sweep: `(max v(vout) from=1.3 to=1.2)-(min v(vout) from=1.3 to=1.2)`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `load_span_v` | DC sweep: `(max v(vout))-(min v(vout))`. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 
-The capability coefficient remains **8**; it is independent of
-the reference-relative task score.
+Area reference: **65470.09 um2**. The expanded circuit has 54 device instances, a sum of device/contact envelopes 43312.7759 um2, a one-sided envelope margin of 0.6 um, a routing allowance of 50%, and a total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across both sides, and the envelope sum is displayed to four decimal places. MOS/passive envelopes use W/L (or resistor dimensions) and multiplicity, including explicit contacts and HBT emitter/contact envelopes. This is a frozen engineering estimate, not a process minimum or a proven achievable area.
 
+The capability coefficient is **8**, independent of this task's reference-normalized score.
 
 ### Score weights
 
-IHP regulators: regulation and headroom 22.5%; load recovery 22.5%; startup 13.5%; loop stability 13.5%; AC transfer and extrema 4.5%; internal bias 1.8%; quiescent current 7.2%; power 4.5%; area 10%. Each objective's weight is divided equally among its metrics.
+IHP regulator: regulation and dropout 22.5%, load recovery 22.5%, startup 13.5%, loop stability 13.5%, AC transfer and extrema 4.5%, internal bias 1.8%, quiescent current 7.2%, power 4.5%, area 10%; each objective weight is divided equally among its metrics.
 
 | Metric | Weight |
 | --- | ---: |

tasks/ihp-sg13g2/analog-db/cases/smp_001_nmos_th/case.toml

@@ -1,15 +1,15 @@
-in_core = true
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.smp_001_nmos_th"
 title = "Physical NMOS Sample-and-Hold: Headroom and Retention"
 status = "qualified"
+in_core = true
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "7d6d4cab7ba14de2cd099f1826834875923b21d430b673deff221a27a2667ed1"
+sha256 = "30cbe250b9fc7222f5a975d96250268c43bcd02d8b0df95be4769dbb039399c8"
 
 [[assets]]
 path = "reference/smp_001_nmos_th.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-smp_001_nmos_th-tt-retention-rc"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "af3b5158f27517245b48e1d8cabfbd1d3b3ce32ce5c45997fdc6a167c325a10d"
+sha256 = "9dab8c5caf691dc67d6c18c95bb95fb1796a67de63485853dc5a9ad07e3b5cf6"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "846cb6797fae4bca4b793d23239e778299f46ec0b3342e44d2a014ca5d6b3802"
 subcircuit = "smp_001_nmos_th"
+sha256 = "846cb6797fae4bca4b793d23239e778299f46ec0b3342e44d2a014ca5d6b3802"
 
 [task.inputs.performance]
 path = "materials/testbench.spice"
@@ -247,17 +247,17 @@ mode = "post_layout"
 [task.evaluation.scoring]
 method = "layout"
 area_metric = "functional_area"
-area_target = 661.39
-rationale = "Track/hold switches: acquisition 35%; hold fidelity 45%; clock energy 10%; area 10%. Each objective's weight is divided equally among its metrics."
+area_target = 300.0
+rationale = "The 300 um2 footprint carries 30%. Held-value accuracy carries 25%; pedestal, off-state feedthrough, tracking and clock energy carry 10% each; reacquisition carries 5%. Hold drift is retained as a diagnostic decomposition of held-value error. Explicit physical goals avoid defining perfect accuracy from near-zero source samples, while the worst of all 16 sample/temperature/off-state conditions determines each quality factor."
 
 [task.evaluation.scoring.weights]
-functional_area = 0.1
-reacquire_error_v = 0.175
-track_error_v = 0.175
-feedthrough_peak_v = 0.1125
-hold_drift_v = 0.1125
-hold_error_v = 0.1125
-pedestal_abs_v = 0.1125
+functional_area = 0.3
+reacquire_error_v = 0.05
+track_error_v = 0.1
+feedthrough_peak_v = 0.1
+hold_drift_v = 0.0
+hold_error_v = 0.25
+pedestal_abs_v = 0.1
 clock_energy_j = 0.1
 
 [[task.evaluation.jobs]]
@@ -1032,9 +1032,16 @@ baseline = [
     "source_condition_14:track_error_v",
     "source_condition_15:track_error_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 1e-05
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 0.001
+rationale = "Aim for at most 1 mV tracking error before clock turn-off."
 
 [[task.evaluation.metrics]]
 id = "pedestal_abs_v"
@@ -1079,9 +1086,16 @@ baseline = [
     "source_condition_14:pedestal_abs_v",
     "source_condition_15:pedestal_abs_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 0.0001
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 0.003
+rationale = "Aim for at most 3 mV clock turn-off pedestal across the declared sample matrix."
 
 [[task.evaluation.metrics]]
 id = "feedthrough_peak_v"
@@ -1126,9 +1140,16 @@ baseline = [
     "source_condition_14:feedthrough_peak_v",
     "source_condition_15:feedthrough_peak_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 5e-06
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 5e-05
+rationale = "Aim for at most 50 uV peak feedthrough from the off-state input transition."
 
 [[task.evaluation.metrics]]
 id = "hold_drift_v"
@@ -1173,10 +1194,13 @@ baseline = [
     "source_condition_14:hold_drift_v",
     "source_condition_15:hold_drift_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
 [[task.evaluation.metrics]]
 id = "hold_error_v"
 category = "performance"
@@ -1220,9 +1244,16 @@ baseline = [
     "source_condition_14:hold_error_v",
     "source_condition_15:hold_error_v",
 ]
-normalization = "ratio"
+normalization = "saturating_ratio"
+scale = 0.001
+
+[task.evaluation.metrics.requirement]
 lower = 0
-scale = 1e-06
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 0.015
+rationale = "Aim for at most 15 mV held-value error across all sampled voltages, off-state input levels and temperatures."
 
 [[task.evaluation.metrics]]
 id = "reacquire_error_v"
@@ -1267,10 +1298,17 @@ baseline = [
     "source_condition_14:reacquire_error_v",
     "source_condition_15:reacquire_error_v",
 ]
-normalization = "ratio"
-lower = 0
+normalization = "saturating_ratio"
 scale = 1e-06
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The absolute error, voltage span, charge magnitude or recovery deviation has a nonnegative measurement domain; its positive value remains a continuously scored quality observation."
+
+[task.evaluation.metrics.quality_target]
+value = 5e-06
+rationale = "Aim for at most 5 uV error at the declared reacquisition sample."
+
 [[task.evaluation.metrics]]
 id = "clock_energy_j"
 category = "performance"
@@ -1315,9 +1353,16 @@ baseline = [
     "source_condition_15:clock_energy_j",
 ]
 normalization = "ratio"
-lower = 0
 scale = 1e-21
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "The declared powered circuit or driven switching network must consume nonnegative net supply/driver energy or quiescent current under the complete stated observation."
+
+[task.evaluation.metrics.quality_target]
+value = 3e-15
+rationale = "Aim for at most 3 fJ clock-source energy over the declared capture/reacquisition sequence."
+
 [[task.evaluation.metrics]]
 id = "target"
 category = "performance"
@@ -1594,10 +1639,10 @@ direction = "maximize"
 aggregation = "max"
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "06b5b2ddf7903cebd2e0b312151123172d17e4fafff047fcb8f303c54928d8a1"
+source_report_sha256 = "dee43385e3a287f0679c0fcd913f1392e60f874fe3dfd857488c793166c6c442"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:6562558774d43c085a289bbba696c55959eb8051a0996f96633451fbeb9c652d\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"bce7f9881914eef1ed5ef8d48c2d22ee7e6b29d513212c048c8e747914b46817\", \"timeout_seconds\": 300.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"a202c3d9d407fa71903be9db155aeb1eb3f9bccbb7ed18bfd0eaa1ea925dc151\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 300.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -1713,6 +1758,9 @@ unit = "V"
 value = 0.1
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+transient = "30ede828c1f70395e6989213f394d89e83ea37aca698a530898a1d02b9428509"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -1827,6 +1875,9 @@ unit = "V"
 value = 0.1
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+transient = "3277c35af2f65dc65d203c4cc64d145bdc50857fee7c9d2fc121bdaa96e7e30b"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -1941,6 +1992,9 @@ unit = "V"
 value = 0.4
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+transient = "2ad45aeb4482f96c31ec81a8e2c6ac25db2a9a575426183fa8ac74d8efb8d823"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -2055,6 +2109,9 @@ unit = "V"
 value = 0.4
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+transient = "58f0043327d46d4fea37ab6d4a0baa851ced78385a88c254dae87a0d1117eeae"
+
 [task.evaluation.pre_layout.jobs.source_condition_4]
 operation = "circuit.simulate"
 
@@ -2169,6 +2226,9 @@ unit = "V"
 value = 0.6
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_4.output_sha256]
+transient = "3bfeabaa5bfcd7a669f9cb7608aa99bff776ae2c815d0b41f0ac7b5fd5ace5a8"
+
 [task.evaluation.pre_layout.jobs.source_condition_5]
 operation = "circuit.simulate"
 
@@ -2283,6 +2343,9 @@ unit = "V"
 value = 0.6
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_5.output_sha256]
+transient = "b02f921e1a448cce162a1a153bb39b0d53a52ef7aa3734374b88d4397bd0ce6d"
+
 [task.evaluation.pre_layout.jobs.source_condition_6]
 operation = "circuit.simulate"
 
@@ -2397,6 +2460,9 @@ unit = "V"
 value = 0.6999986
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_6.output_sha256]
+transient = "482f56312155955fd90f2b0d8c411ce0742aa0cc4dabb8fbdbd0eb4e77407944"
+
 [task.evaluation.pre_layout.jobs.source_condition_7]
 operation = "circuit.simulate"
 
@@ -2511,6 +2577,9 @@ unit = "V"
 value = 0.6999986
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_7.output_sha256]
+transient = "431ca113e061cd4e3c99610d1cef31ccec1c60477bd7a984d97bca21a2c116a7"
+
 [task.evaluation.pre_layout.jobs.source_condition_8]
 operation = "circuit.simulate"
 
@@ -2625,6 +2694,9 @@ unit = "V"
 value = 0.1000001
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_8.output_sha256]
+transient = "885c578e3cfca6538115458f9398a89e8b5c10d6633f75feb4a48abbc2c95252"
+
 [task.evaluation.pre_layout.jobs.source_condition_9]
 operation = "circuit.simulate"
 
@@ -2739,6 +2811,9 @@ unit = "V"
 value = 0.1000001
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_9.output_sha256]
+transient = "41d2110b93c53cbe036cf5e8d552fefea566615ef950c8be19b32411343d6e55"
+
 [task.evaluation.pre_layout.jobs.source_condition_10]
 operation = "circuit.simulate"
 
@@ -2853,6 +2928,9 @@ unit = "V"
 value = 0.4
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_10.output_sha256]
+transient = "953fa888b150095fa8bfea4650c96672a2f8a44c294646d4e747cf1de6322207"
+
 [task.evaluation.pre_layout.jobs.source_condition_11]
 operation = "circuit.simulate"
 
@@ -2967,6 +3045,9 @@ unit = "V"
 value = 0.4
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_11.output_sha256]
+transient = "7715008112ea1909cea8f1d7d940771e4d199104adda45c19c76b4c2c29cc35a"
+
 [task.evaluation.pre_layout.jobs.source_condition_12]
 operation = "circuit.simulate"
 
@@ -3081,6 +3162,9 @@ unit = "V"
 value = 0.6
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_12.output_sha256]
+transient = "56aa099e4598a3261ee7e2ab30ac362a99fd3b7d0fb22724f8be5d2185e6f478"
+
 [task.evaluation.pre_layout.jobs.source_condition_13]
 operation = "circuit.simulate"
 
@@ -3195,6 +3279,9 @@ unit = "V"
 value = 0.6
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_13.output_sha256]
+transient = "e6ed089c4221fb276bd203230b41f334fdc5e5548e86935d8e0ee700f059b7cc"
+
 [task.evaluation.pre_layout.jobs.source_condition_14]
 operation = "circuit.simulate"
 
@@ -3309,6 +3396,9 @@ unit = "V"
 value = 0.7
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_14.output_sha256]
+transient = "cee9d3504ff089a1bcfde9211e11a734cf5501232e81ecf7435917c89e42e6f7"
+
 [task.evaluation.pre_layout.jobs.source_condition_15]
 operation = "circuit.simulate"
 
@@ -3423,6 +3513,9 @@ unit = "V"
 value = 0.7
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_15.output_sha256]
+transient = "4ea93cf9c9c55d0a91d2798628a12db3b670051f127431c716b6cad1d5609fe9"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -3435,7 +3528,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -3446,7 +3539,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/input-pair-klayout"
 profile = "drc-upstream.json"
@@ -3459,7 +3552,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/input-pair-klayout"
 profile = "lvs-upstream.json"
@@ -3472,7 +3565,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/input-pair-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -3486,7 +3579,7 @@ grid_subdivision = 2
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -3496,7 +3589,10 @@ type = "ngspice-docker"
 support = "analog-res-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-res-models"
 timeout_seconds = 300
 

tasks/ihp-sg13g2/analog-db/cases/smp_001_nmos_th/problem.md

@@ -69,50 +69,28 @@ fabrication signoff are outside this contract.
 
 ## Electrical Requirements and Scoring
 
-Physical checks and declared functional bounds remain mandatory. Quality has no
-fixed allowed-degradation threshold. Each `source_*` job simulates the declared
-source circuit with exactly the same testbench, model resources, parameters,
-load and measurement window as its paired extracted-candidate job. A source
-observation is the 100-point electrical baseline; it is independent of the
-submitted GDS. All individual pairs are retained in the evaluation report.
-
-For a post-layout observation x and its source observation b:
-
-- Maximize: q = x/b; minimize: q = b/x. When a numerical scale s is declared,
-  use (x+s)/(b+s) or its inverse. This handles zero-valued error measurements;
-  s is a normalization floor, not an allowed degradation or pass threshold.
-- Amplitude dB: q = 10^((x-b)/20) for maximize, its inverse for minimize.
-- Target: q = 1/(1+abs(x-b)/s), with a declared physical scale s. Signed and
-  zero-valued operating points are never divided directly.
-
-Scoring uses `layout`. A metric uses its worst paired quality q. The score is
-S = 100 * product(q_i ** w_i), including area quality
-q_area = area_reference / candidate_functional_area. The weights below sum to
-one. Dimensions describe measurements but do not determine their weights.
-Physical or functional rejection scores zero; missing or invalid measurements
-produce an unknown score, including measurements with zero weight.
-Source-equivalent performance at the area reference scores 100; improvements
-can exceed 100. A weight expresses a tradeoff, not a hard acceptance limit.
-
-Measurement definitions below use the supplied SPICE node/source names.
-`v(n)` is node voltage and `i(V)` is current into a voltage source; delivered
-power therefore uses a minus sign. `db(z)=20*log10(abs(z))`, `mag/abs`
-denote magnitude, and `cph` is continuous phase in radians. `find`, `when`,
-`from/to`, and `rise/fall` retain the deck's interpolation, window and
-crossing conventions; SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/
-milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv`
-mean the stated window average, extrema and sampled derivative. All
-declared conditions are measured separately and paired with the same
-source condition; a group uses its worst paired quality.
-
-| Metric | Definition / observations | Unit | Quality rule | Functional bounds | Scale | Dimension |
+Physical checks and the declared functional bounds must pass. Quality scoring imposes no fixed degradation allowance. Each `source_*` job and its corresponding candidate extracted circuit use exactly the same testbench, model resources, parameters, loads and measurement windows. Independent source observations remain required evidence. The explicit quality targets below supply scoring anchors; otherwise the paired source value is used. Reports retain every paired result.
+
+Let x be the post-layout measurement and b the declared quality target, or the same-condition source measurement when no target is declared:
+
+- Ratio normalization: maximize with q = x/b and minimize with q = b/x. When a numerical scale s is declared, use (x+s)/(b+s) and its reciprocal, respectively. The scale handles zero values as a normalization floor; it is neither an allowed degradation nor an acceptance bound.
+- Amplitude in dB: maximize with q = 10^((x-b)/20) and minimize with its reciprocal.
+- Target normalization: q = 1/(1+abs(x-b)/s), where s is the declared physical scale. Signed or zero-valued operating points are not divided directly.
+
+Use `layout` scoring. Each metric takes its worst paired quality q, and the total score is S = 100 * product(q_i ** w_i), with area quality q_area = area_target / candidate_functional_area. The weights below sum to 1; metric dimensions describe measurements and do not determine weights. Physical or functional rejection scores zero; missing or invalid measurements leave the score unknown, and zero-weight observations must also be valid. Joint attainment of the electrical and area goals scores 100 points; a feasible reference may score far below 100, and better valid solutions may exceed 100. Weights express quality tradeoffs rather than hard bounds.
+
+The measurements below use the supplied SPICE node and source names. `v(n)` is a node voltage; `i(V)` is current flowing into a voltage source, so delivered power uses a negative sign. `db(z)=20*log10(abs(z))`; `mag/abs` denote magnitude, and `cph` denotes continuous phase in radians. `find`, `when`, `from/to` and `rise/fall` follow the deck's interpolation, window and crossing conventions. SPICE suffixes p/n/u/m/meg/g mean pico/nano/micro/milli/mega/giga. Nested `avg`, `min`, `max`, `vecmin/vecmax` and `deriv` represent window averages, extrema and sampled derivatives. Measure each operating condition independently, pair it with the source result under that condition, and take the worst paired quality within each metric group.
+
+For metrics declaring `saturating_ratio`, q = 2(b+s)/(b+x+2*s), using the quality anchor b and the positive scale s in the metric’s units. Equality to the anchor gives quality 1; improvements approach 2. Normalize each condition before selecting the worst quality. These scales and targets do not add acceptance cutoffs.
+
+| Metric | Definition / observation | Unit | Quality normalization | Functional range | Scale | Dimension |
 | --- | --- | --- | --- | --- | --- | --- |
-| `track_error_v` | Maximum absolute VOUT minus target over 80–190 ns; target is VSRC sampled at 180 ns. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `pedestal_abs_v` | Absolute difference between VOUT at 220 ns and 180 ns (held minus tracked sample). | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `feedthrough_peak_v` | Maximum absolute VOUT minus its 390 ns sample over 400–450 ns, during the input transition in hold. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `hold_drift_v` | Absolute difference between VOUT at 11 us and 1 us. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `hold_error_v` | Maximum absolute VOUT minus target over 220 ns–11 us; target is VSRC at 180 ns. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
-| `reacquire_error_v` | Maximum absolute VOUT minus target over 11.48–11.69 us; target is VSRC at 180 ns. | V | minimize / ratio | 0 … +∞ | 1e-06 | response |
+| `track_error_v` | Maximum absolute VOUT minus target over 80–190 ns; target is VSRC sampled at 180 ns. | V | minimize / saturating_ratio | 0 … +∞ | 1e-05 | response |
+| `pedestal_abs_v` | Absolute difference between VOUT at 220 ns and 180 ns (held minus tracked sample). | V | minimize / saturating_ratio | 0 … +∞ | 0.0001 | response |
+| `feedthrough_peak_v` | Maximum absolute VOUT minus its 390 ns sample over 400–450 ns, during the input transition in hold. | V | minimize / saturating_ratio | 0 … +∞ | 5e-06 | response |
+| `hold_drift_v` | Absolute difference between VOUT at 11 us and 1 us. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
+| `hold_error_v` | Maximum absolute VOUT minus target over 220 ns–11 us; target is VSRC at 180 ns. | V | minimize / saturating_ratio | 0 … +∞ | 0.001 | response |
+| `reacquire_error_v` | Maximum absolute VOUT minus target over 11.48–11.69 us; target is VSRC at 180 ns. | V | minimize / saturating_ratio | 0 … +∞ | 1e-06 | response |
 | `clock_energy_j` | Integral of max(-V(CLK)*I(VCLK), 0) over 0–11.7 us; returned clock energy is excluded. | J | minimize / ratio | 0 … +∞ | 1e-21 | supply |
 | `target` | TRAN: Value of `v(src) at=180n`. | V | diagnostic | −∞ … +∞ | — | unscored diagnostic |
 | `track_v` | TRAN: Value of `v(vout) at=180n`. | V | diagnostic | −∞ … +∞ | — | unscored diagnostic |
@@ -126,26 +104,28 @@ source condition; a group uses its worst paired quality.
 | `feedthrough_v` | Signed VOUT(450 ns) − VOUT(390 ns). | V | diagnostic | −∞ … +∞ | — | unscored diagnostic |
 | `drift_v` | Signed VOUT(11 us) − VOUT(1 us). | V | diagnostic | −∞ … +∞ | — | unscored diagnostic |
 
-Area reference: **661.39 um2**. 3 expanded device instances; sum of device/contact envelopes 407.6560 um2, per-side envelope allowance 0.6 um, 50% routing allowance and total outer width/height allowance 1.2 um. Estimate = ceil(100 * (1.5 * envelope_sum + 2 * margin * sqrt(envelope_sum) + margin^2)) / 100. Here margin is the total allowance across two opposite sides; the envelope sum is displayed rounded to four decimals. MOS/passive envelopes use declared W/L (or resistor dimensions) and multiplicity; explicit tap areas and HBT emitter/contact envelopes are included. This is a frozen engineering estimate, not a foundry minimum or a feasibility claim.
 
-The capability coefficient remains **5**; it is independent of
-the reference-relative task score.
+The capability coefficient is **5**, independent of this task's reference-normalized score.
+
+### Quality targets and weights
+
+The area quality target is **300 um2**, independent of the current feasibility witness. It is not a hard area limit or a process minimum.
 
+The 300 um2 footprint carries 30%. Held-value accuracy carries 25%; pedestal, off-state feedthrough, tracking and clock energy carry 10% each; reacquisition carries 5%. Hold drift is retained as a diagnostic decomposition of held-value error. Explicit physical goals avoid defining perfect accuracy from near-zero source samples, while the worst of all 16 sample/temperature/off-state conditions determines each quality factor.
 
-### Score weights
+| Metric | Quality anchor | Unit | Scale | Weight |
+| --- | --- | --- | --- | ---: |
+| `functional_area` | 300 | um2 | — | 0.3 |
+| `reacquire_error_v` | 5e-06 | V | 1e-06 | 0.05 |
+| `track_error_v` | 0.001 | V | 1e-05 | 0.1 |
+| `feedthrough_peak_v` | 5e-05 | V | 5e-06 | 0.1 |
+| `hold_error_v` | 0.015 | V | 0.001 | 0.25 |
+| `pedestal_abs_v` | 0.003 | V | 0.0001 | 0.1 |
+| `clock_energy_j` | 3e-15 | J | 1e-21 | 0.1 |
 
-Track/hold switches: acquisition 35%; hold fidelity 45%; clock energy 10%; area 10%. Each objective's weight is divided equally among its metrics.
+Zero-weight paired diagnostics: `hold_drift_v`. All unweighted measurements and functional requirements remain checked.
 
-| Metric | Weight |
-| --- | ---: |
-| `functional_area` | 0.1 |
-| `reacquire_error_v` | 0.175000000000 |
-| `track_error_v` | 0.175000000000 |
-| `feedthrough_peak_v` | 0.112500000000 |
-| `hold_drift_v` | 0.112500000000 |
-| `hold_error_v` | 0.112500000000 |
-| `pedestal_abs_v` | 0.112500000000 |
-| `clock_energy_j` | 0.100000000000 |
+The targets above affect continuous quality only. A complete feasible reference is allowed to miss them; there is no minimum qualifying score.
 
 ## Tools and Submission
 

tasks/ihp-sg13g2/analog-db/cases/sw_001_transmission_gate_pair/case.toml

@@ -1,15 +1,15 @@
-in_core = false
 kind = "layout_case"
 id = "ihp-sg13g2.analog-db.sw_001_transmission_gate_pair"
 title = "Bidirectional CMOS Transmission Gate"
 status = "qualified"
+in_core = false
 
 [[assets]]
 path = "materials/schematic.svg"
 role = "schematic"
 visibility = "maintainer"
 format = "svg"
-sha256 = "8e811a4d7fee5768bd29ec38509effa8eb53045272d6009402d82dccd1d2c183"
+sha256 = "94f651d65e8c2a1196c895a51e88aba6cc0b8b5e1d3dc7e2ee67684dcd14e1fd"
 
 [[assets]]
 path = "reference/sw_001_transmission_gate_pair.gds"
@@ -28,13 +28,13 @@ environment = "ihp-sg13g2-mos-rc-tt"
 [task.inputs.description]
 path = "problem.md"
 format = "text"
-sha256 = "a251ae653b52adca55dbcff41ffc6bb264bfda69bb216cba0f79e2c9ba34a7a1"
+sha256 = "3c24869d3b94e3cc185342b56bedf9c15d0014bdfa58e0106c3d1032e17e0790"
 
 [task.inputs.netlist]
 path = "materials/circuit.cdl"
 format = "spice"
-sha256 = "541f878fd2a9d6f0eab4f125d64563a2a2e56b0deb4fa7adef4d2db88adc11cf"
 subcircuit = "sw_001_transmission_gate_pair"
+sha256 = "541f878fd2a9d6f0eab4f125d64563a2a2e56b0deb4fa7adef4d2db88adc11cf"
 
 [task.inputs.simulation]
 path = "materials/circuit.spice"
@@ -49,12 +49,12 @@ sha256 = "864061d38ce90c87d8f9d9dd0025a54bc4f7f2932a45828b1c5bb20f4c6d4c0c"
 [task.inputs.forward]
 path = "materials/forward.spice"
 format = "spice"
-sha256 = "bcc2a19f30f00a56351532f9d75a5236d1c0063fb09d2b88f9b6a70bf1b29aa1"
+sha256 = "d8ea737f5eb6ecf9db58db71c05a6dc11b214eaa01dec971b3526a9f55647d4c"
 
 [task.inputs.reverse]
 path = "materials/reverse.spice"
 format = "spice"
-sha256 = "0ba443ecbb534fa350a2200cadffdcc5182806d0398fbcdcd3fcf51f06aed0e8"
+sha256 = "6ddd7fbfd989ab09a10c4127ca4746a6b93f33e5469bb63375bf39c904ecafe2"
 
 [task.constraints]
 quality = [
@@ -841,7 +841,6 @@ direction = "minimize"
 dimension = "response"
 normalization = "ratio"
 scale = 1
-lower = 0
 category = "performance"
 observations = [
     "condition_0:ron_ohm",
@@ -860,12 +859,15 @@ baseline = [
     "source_condition_5:ron_ohm",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "On-state resistance is the absolute port drop divided by actual source current; a negative resistance cannot represent the declared passive transmission path."
+
 [[task.evaluation.metrics]]
 id = "on_current_a"
 unit = "A"
 aggregation = "max"
 direction = "minimize"
-lower = 1e-09
 category = "performance"
 observations = [
     "condition_0:on_current_a",
@@ -876,6 +878,10 @@ observations = [
     "condition_5:on_current_a",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 1e-09
+rationale = "The 10 mV on-state port difference must produce a resolved current above the declared 1 nA observation floor. An open or unresolved path cannot establish the on-state resistance measurement."
+
 [[task.evaluation.metrics]]
 id = "leakage_a"
 unit = "A"
@@ -884,7 +890,6 @@ direction = "minimize"
 dimension = "bias"
 normalization = "ratio"
 scale = 1e-12
-lower = 0
 category = "performance"
 observations = [
     "condition_0:leakage_a",
@@ -903,6 +908,10 @@ baseline = [
     "source_condition_5:leakage_a",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "Off-state leakage is an absolute current magnitude; a negative value cannot represent the declared leakage observation."
+
 [[task.evaluation.metrics]]
 id = "kcl_a"
 unit = "A"
@@ -924,9 +933,8 @@ unit = "V"
 aggregation = "max"
 direction = "minimize"
 dimension = "response"
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 0.0001
-lower = 0
 category = "performance"
 observations = [
     "condition_6:tracking_error_v",
@@ -957,15 +965,18 @@ baseline = [
     "source_condition_17:tracking_error_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "Tracking error is an absolute voltage difference; a negative value cannot represent the declared measurement."
+
 [[task.evaluation.metrics]]
 id = "feedthrough_v"
 unit = "V"
 aggregation = "max"
 direction = "minimize"
 dimension = "response"
-normalization = "ratio"
+normalization = "saturating_ratio"
 scale = 0.0001
-lower = 0
 category = "performance"
 observations = [
     "condition_6:feedthrough_v",
@@ -996,6 +1007,10 @@ baseline = [
     "source_condition_17:feedthrough_v",
 ]
 
+[task.evaluation.metrics.requirement]
+lower = 0
+rationale = "Feedthrough is an absolute voltage disturbance; a negative value cannot represent the declared measurement."
+
 [[task.evaluation.metrics]]
 id = "hold_shift_v"
 unit = "V"
@@ -1035,10 +1050,10 @@ baseline = [
 ]
 
 [task.evaluation.pre_layout]
-source_report_sha256 = "2ee3359ee064678a19b065a4c8c3a7dad7db185fd4a4c969ae96b2d7746d0145"
+source_report_sha256 = "1d0f8db8ba72d24f8caec35c2e7a77e23b9ad9df552b842e63c8ce19b42403c8"
 
 [task.evaluation.pre_layout.backends]
-"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"ef9cb87fa27b849376472663b7362673979b89e012f161ba47bb5f6af6ede8eb\", \"compatibility\": null, \"execution_sha256\": \"5424b579002782bfddf0a729715b8fbf2a5f7f2b4cf14982d7616e352d5de9be\", \"image_id\": \"sha256:34eff92f7ffca7b8b010bcded394c4625c14143c757fda519e873b7ef8e87dc5\", \"limits\": {\"cpus\": 4, \"memory_mb\": 4096, \"pids\": 256}, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"ec7be417ea7b6e68e735126bb75d32d0f2f00b961da2b5d109d0c2c9d4908b14\", \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
+"circuit.simulate" = "{\"adapter\": \"ngspice-docker\", \"adapter_sha256\": \"dfbdf2f93297bbe7d8b576fb988504bd0ecf85b93ef47c314a0f2c9c8830c3e7\", \"compatibility\": null, \"cpu_budget\": 8, \"execution_sha256\": \"495aa9623759f70228a236eb4825c2ae443ef6a741816d8cfc17d1830841dcef\", \"image_id\": \"sha256:060fee64f9f6e71a647e5e958b788d723c9d51d2928ff93e6a295db1959bc37f\", \"limits\": {\"cpus\": 8, \"memory_mb\": 4096, \"pids\": 256}, \"max_parallel_jobs\": 8, \"resistor_formulation\": \"conductance\", \"support_sha256\": \"dce84f0cb44c7192511c807348bb3852682b1b4ec71ee94055876cb79ccbbdb1\", \"thread_environment\": {\"OMP_NUM_THREADS\": \"1\", \"OMP_THREAD_LIMIT\": \"1\"}, \"threads\": 1, \"timeout_seconds\": 600.0, \"tool_version\": \"******\\n** ngspice-45 : Circuit level simulation program\\n** Compiled with KLU Direct Linear Solver\\n** The U. C. Berkeley CAD Group\\n** Copyright 1985-1994, Regents of the University of California.\\n** Copyright 2001-2025, The ngspice team.\\n** Please get your ngspice manual from https://ngspice.sourceforge.io/docs.html\\n** Please file your bug-reports at http://ngspice.sourceforge.net/bugrep.html\\n** Creation Date: Thu Sep 17 13:42:47 UTC 2026\\n******\"}"
 
 [task.evaluation.pre_layout.jobs.source_condition_0]
 operation = "circuit.simulate"
@@ -1085,6 +1100,10 @@ unit = "A"
 value = 292.5466697433025
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_0.output_sha256]
+op = "58a1abad666a07a6380b16818f0a8955d27cdb06ca7d490f1d51163a963d4953"
+off = "12d4ae5c8439feb0476a94857e23ac797279e178f9b34011f8cb1edb718c5300"
+
 [task.evaluation.pre_layout.jobs.source_condition_1]
 operation = "circuit.simulate"
 
@@ -1130,6 +1149,10 @@ unit = "A"
 value = 292.545420521782
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_1.output_sha256]
+op = "9adfd68a68f8901aad5d0329cae13bbddf8432401b3986dfc6efb3fc29df7889"
+off = "dcc12d1fcb6de9bcc4d1784b778f6914910cfeb09455eac45e3a4d3cad4d159d"
+
 [task.evaluation.pre_layout.jobs.source_condition_2]
 operation = "circuit.simulate"
 
@@ -1175,6 +1198,10 @@ unit = "A"
 value = 1082.684555546178
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_2.output_sha256]
+op = "9a84dd32cccf53f0bdb4ea8666bc9ed26fa8ea74905de1e577cc82164f5bf7d8"
+off = "4c0e855889c3168ef25a80099914be9056603ffd9b2eb1799031263a37f707d0"
+
 [task.evaluation.pre_layout.jobs.source_condition_3]
 operation = "circuit.simulate"
 
@@ -1220,6 +1247,10 @@ unit = "A"
 value = 1082.684867482453
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_3.output_sha256]
+op = "c35c96a5f8430fae7607df9bfd65f0883e8a1ef14c40810d6c7de55ce8e2ed46"
+off = "e48a2d380ce6c3d79613779c8c31d9cfcd2be3b15f54325695ab791b1a5dedc0"
+
 [task.evaluation.pre_layout.jobs.source_condition_4]
 operation = "circuit.simulate"
 
@@ -1265,6 +1296,10 @@ unit = "A"
 value = 892.7414339388932
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_4.output_sha256]
+op = "997038bc723798714cf85838bd33a2a280351a668c7ca6e285c07c0543aebee9"
+off = "623ba8be477303609539d6322ce82895f768d6f38f5757cf5b2b341826773904"
+
 [task.evaluation.pre_layout.jobs.source_condition_5]
 operation = "circuit.simulate"
 
@@ -1310,6 +1345,10 @@ unit = "A"
 value = 892.7456236363698
 unit = "ohm"
 
+[task.evaluation.pre_layout.jobs.source_condition_5.output_sha256]
+op = "8dc129194093ea5b94a5f5ab0bbfc57caee6e7eac06e27ad7c884163768f522b"
+off = "f8eebd571895f5cd3ea6277b37202f4352e9e00e436b579086dafa00c52c4157"
+
 [task.evaluation.pre_layout.jobs.source_condition_6]
 operation = "circuit.simulate"
 
@@ -1335,7 +1374,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_6.input_sha256]
-deck = "bcc2a19f30f00a56351532f9d75a5236d1c0063fb09d2b88f9b6a70bf1b29aa1"
+deck = "d8ea737f5eb6ecf9db58db71c05a6dc11b214eaa01dec971b3526a9f55647d4c"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_6.measurements.feedthrough_v]
@@ -1350,6 +1389,10 @@ unit = "V"
 value = 3.592214749999999e-08
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_6.output_sha256]
+op = "3215aaf3ecbd84b8c454569b3e5ac517c0d771c8c00adf436d767812b47763cc"
+transient = "3b57c22d10716375c7d16b2a1028be77433d23e76b02e41b04e740ad9fee5e2c"
+
 [task.evaluation.pre_layout.jobs.source_condition_7]
 operation = "circuit.simulate"
 
@@ -1375,7 +1418,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_7.input_sha256]
-deck = "bcc2a19f30f00a56351532f9d75a5236d1c0063fb09d2b88f9b6a70bf1b29aa1"
+deck = "d8ea737f5eb6ecf9db58db71c05a6dc11b214eaa01dec971b3526a9f55647d4c"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_7.measurements.feedthrough_v]
@@ -1390,6 +1433,10 @@ unit = "V"
 value = 0.0019943776825
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_7.output_sha256]
+op = "8033f89bebcbf15c1ed0816b8ed959ee2c9f6239db4291c89c03880ab672c8f5"
+transient = "9d7a9c5725ec168dd8c835ef95bc882ca624d2ef3008e81b9ea0f8f643e2d908"
+
 [task.evaluation.pre_layout.jobs.source_condition_8]
 operation = "circuit.simulate"
 
@@ -1415,7 +1462,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_8.input_sha256]
-deck = "bcc2a19f30f00a56351532f9d75a5236d1c0063fb09d2b88f9b6a70bf1b29aa1"
+deck = "d8ea737f5eb6ecf9db58db71c05a6dc11b214eaa01dec971b3526a9f55647d4c"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_8.measurements.feedthrough_v]
@@ -1430,6 +1477,10 @@ unit = "V"
 value = 1.70384e-09
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_8.output_sha256]
+op = "9199e552f16eae6c38cab118fad5db54f66118058670bbedcaeef6571e3d7040"
+transient = "369d8583ec42c4964d77859e3aa873345c9d438d21a0e0478454bf1337a1ced1"
+
 [task.evaluation.pre_layout.jobs.source_condition_9]
 operation = "circuit.simulate"
 
@@ -1455,7 +1506,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_9.input_sha256]
-deck = "bcc2a19f30f00a56351532f9d75a5236d1c0063fb09d2b88f9b6a70bf1b29aa1"
+deck = "d8ea737f5eb6ecf9db58db71c05a6dc11b214eaa01dec971b3526a9f55647d4c"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_9.measurements.feedthrough_v]
@@ -1470,6 +1521,10 @@ unit = "V"
 value = 0.006039576375
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_9.output_sha256]
+op = "3cc141f8bcaeaf8d46785b407c59185cabe98eb53404279bfddd31557f4cc8cd"
+transient = "5de5a90cc0d13f5a5d94357d45868c659c49320f4aaab98762ea4edadc80308c"
+
 [task.evaluation.pre_layout.jobs.source_condition_10]
 operation = "circuit.simulate"
 
@@ -1495,7 +1550,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_10.input_sha256]
-deck = "bcc2a19f30f00a56351532f9d75a5236d1c0063fb09d2b88f9b6a70bf1b29aa1"
+deck = "d8ea737f5eb6ecf9db58db71c05a6dc11b214eaa01dec971b3526a9f55647d4c"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_10.measurements.feedthrough_v]
@@ -1510,6 +1565,10 @@ unit = "V"
 value = 2.8690585e-08
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_10.output_sha256]
+op = "41a051c87f0a3376c326115e6a218d2241ac0fae4b861555913913d8ec5ef4f4"
+transient = "389714a1c97e9ee53e991123d469c9e95f7d819481ec7d52e9e22cac7aaa74e3"
+
 [task.evaluation.pre_layout.jobs.source_condition_11]
 operation = "circuit.simulate"
 
@@ -1535,7 +1594,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_11.input_sha256]
-deck = "bcc2a19f30f00a56351532f9d75a5236d1c0063fb09d2b88f9b6a70bf1b29aa1"
+deck = "d8ea737f5eb6ecf9db58db71c05a6dc11b214eaa01dec971b3526a9f55647d4c"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_11.measurements.feedthrough_v]
@@ -1550,6 +1609,10 @@ unit = "V"
 value = 0.005029772400000001
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_11.output_sha256]
+op = "252fe027f4dff9a47c0b9059335948891fccbeb3a35fc49d4f175db08587c515"
+transient = "592b88d1d31e4229bb881150adf430cb7f945d7e4f3bba87f1f160175d8a605c"
+
 [task.evaluation.pre_layout.jobs.source_condition_12]
 operation = "circuit.simulate"
 
@@ -1575,7 +1638,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_12.input_sha256]
-deck = "0ba443ecbb534fa350a2200cadffdcc5182806d0398fbcdcd3fcf51f06aed0e8"
+deck = "6ddd7fbfd989ab09a10c4127ca4746a6b93f33e5469bb63375bf39c904ecafe2"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_12.measurements.feedthrough_v]
@@ -1590,6 +1653,10 @@ unit = "V"
 value = 3.592214749999999e-08
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_12.output_sha256]
+op = "2c4ec32c2a61accac0b7d87da33c506655f0eea224679a664b75f6469473e673"
+transient = "dfc3f4c18d072edec9c88862a47173f7dd01531301000579c05d9cadf31dfbf7"
+
 [task.evaluation.pre_layout.jobs.source_condition_13]
 operation = "circuit.simulate"
 
@@ -1615,7 +1682,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_13.input_sha256]
-deck = "0ba443ecbb534fa350a2200cadffdcc5182806d0398fbcdcd3fcf51f06aed0e8"
+deck = "6ddd7fbfd989ab09a10c4127ca4746a6b93f33e5469bb63375bf39c904ecafe2"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_13.measurements.feedthrough_v]
@@ -1630,6 +1697,10 @@ unit = "V"
 value = 0.0019943776825
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_13.output_sha256]
+op = "accdb669fafbf63248f81e5903b4e43deee4c63b986dce2991a69dcd00fd2d32"
+transient = "15ec8310563b92c68c21c5ba54687b47c9309d93bd366f5a57e5ecebdf204f47"
+
 [task.evaluation.pre_layout.jobs.source_condition_14]
 operation = "circuit.simulate"
 
@@ -1655,7 +1726,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_14.input_sha256]
-deck = "0ba443ecbb534fa350a2200cadffdcc5182806d0398fbcdcd3fcf51f06aed0e8"
+deck = "6ddd7fbfd989ab09a10c4127ca4746a6b93f33e5469bb63375bf39c904ecafe2"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_14.measurements.feedthrough_v]
@@ -1670,6 +1741,10 @@ unit = "V"
 value = 1.70384e-09
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_14.output_sha256]
+op = "d3234f6c8a21b253557130d1762e5c5ff4014ebee6063f4b1d4da1d727b78323"
+transient = "71a914cb9218ca358843b036761baff0627b1ac76ce58b34f5b8782fb00003f8"
+
 [task.evaluation.pre_layout.jobs.source_condition_15]
 operation = "circuit.simulate"
 
@@ -1695,7 +1770,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_15.input_sha256]
-deck = "0ba443ecbb534fa350a2200cadffdcc5182806d0398fbcdcd3fcf51f06aed0e8"
+deck = "6ddd7fbfd989ab09a10c4127ca4746a6b93f33e5469bb63375bf39c904ecafe2"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_15.measurements.feedthrough_v]
@@ -1710,6 +1785,10 @@ unit = "V"
 value = 0.006039576375
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_15.output_sha256]
+op = "27bbdbf492cf306ca15b6aaa1c98d99244246476fe3bc84fa5329bda89f54afa"
+transient = "b71281f7e635f071e27510e4959776402ea76b401635b053fec5017ef6928f1b"
+
 [task.evaluation.pre_layout.jobs.source_condition_16]
 operation = "circuit.simulate"
 
@@ -1735,7 +1814,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_16.input_sha256]
-deck = "0ba443ecbb534fa350a2200cadffdcc5182806d0398fbcdcd3fcf51f06aed0e8"
+deck = "6ddd7fbfd989ab09a10c4127ca4746a6b93f33e5469bb63375bf39c904ecafe2"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_16.measurements.feedthrough_v]
@@ -1750,6 +1829,10 @@ unit = "V"
 value = 2.8690585e-08
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_16.output_sha256]
+op = "186291199664a48c1b92478fde7811377c28c6c8ac246050073249aa4b4cc72d"
+transient = "ac18ae6f0e08a54c026ad7abd8a85fd36c6121cec9aa797f47d7b8a213d83beb"
+
 [task.evaluation.pre_layout.jobs.source_condition_17]
 operation = "circuit.simulate"
 
@@ -1775,7 +1858,7 @@ op = "op.raw"
 transient = "transient.raw"
 
 [task.evaluation.pre_layout.jobs.source_condition_17.input_sha256]
-deck = "0ba443ecbb534fa350a2200cadffdcc5182806d0398fbcdcd3fcf51f06aed0e8"
+deck = "6ddd7fbfd989ab09a10c4127ca4746a6b93f33e5469bb63375bf39c904ecafe2"
 dut = "e8db280b7f1bff9218d038f96d04fc05491137bde1c0b57fac0430e3c5506a3e"
 
 [task.evaluation.pre_layout.jobs.source_condition_17.measurements.feedthrough_v]
@@ -1790,6 +1873,10 @@ unit = "V"
 value = 0.005029772400000001
 unit = "V"
 
+[task.evaluation.pre_layout.jobs.source_condition_17.output_sha256]
+op = "1b58ce40e4efc4576e14b2feaf387888c6565664854f4cf8ce7576d69c53df4f"
+transient = "4cf320808877a9e28bf0b1ff6826508b8174ad574d54d574d18b7eb7f342d872"
+
 [toolchain.bindings]
 "layout.artifact" = "artifact"
 "layout.drc" = "drc"
@@ -1802,7 +1889,7 @@ unit = "V"
 type = "klayout-docker"
 
 [toolchain.backends.artifact.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "artifact"
 timeout_seconds = 600
 
@@ -1813,7 +1900,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.drc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "drc"
 support = "build/support/analog-db-klayout"
 profile = "drc-upstream.json"
@@ -1826,7 +1913,7 @@ type = "klayout-docker"
 support = "klayout"
 
 [toolchain.backends.lvs.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 check = "lvs"
 support = "build/support/analog-db-klayout"
 profile = "lvs-upstream.json"
@@ -1839,7 +1926,7 @@ type = "magic-rc-docker"
 support = "magic"
 
 [toolchain.backends.rc.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 support = "build/support/analog-db-magic"
 technology = "magic/ihp-sg13g2.tech"
 tech_name = "ihp-sg13g2"
@@ -1851,7 +1938,7 @@ timeout_seconds = 600
 type = "klayout-geometry-docker"
 
 [toolchain.backends.geometry.settings]
-image = "iclayout-bench-tools:local"
+image = "iclayout-eda-open:local"
 timeout_seconds = 120
 
 [toolchain.backends.simulation]
@@ -1861,7 +1948,10 @@ type = "ngspice-docker"
 support = "analog-models"
 
 [toolchain.backends.simulation.settings]
-image = "iclayout-bench-tools:local"
+max_parallel_jobs = 8
+threads = 1
+cpu_budget = 8
+image = "iclayout-eda-open:local"
 support = "build/support/analog-db-analog-models"
 timeout_seconds = 600