0hmX/pcbgolf-routing-checkpoint-20261012
A PCBGolf assembly combining a modeled PCB with copper/component bodies and seven native connector housings.
- Version
- 0.0.3
- License
- unset
- Stars
- 0
evidence/finite-ground-return-review.json
{
"status": "REVIEWED_PARTIAL_STATIC_CHECKPOINT_NO_FUNCTIONAL_OR_THERMAL_RATING",
"board_sha256": "e69b48ea38751e25b11f510cba9e8b03a51dbc50772f75f7e7150ac30d78aace",
"board_source": "workspace/work/agents/drc_validation/next-revision-static-final/static-260.kicad_pcb",
"scope": "260-part two-layer partial source with198 native gap items, four real OUT caps, exact unchanged954 manual identities/nets and existing boundedUSB launch exceptions. Published old208-gap checkpoint remains immutable.",
"source_geometry_identity": {
"manual_intent_count": 954,
"intent_failures": [],
"old_multi_pad_clusters_tested": 159,
"old_pad_joins_lost": [],
"old_copper_changes": [],
"explicit_removed_unlocked_copper": [
"3ae7914f-cfaf-4bc5-8433-39fb1a2433bc"
],
"matches_existing_removal_receipt": true,
"metadata_values": {
"C28": "20pF",
"C32": "20pF",
"R70": "4.7k",
"R71": "4.7k",
"R72": "4.7k",
"R73": "4.7k"
}
},
"output_caps": {
"local_native_bonds_pass": true,
"OUT7_positive_centerline_mm": 1.760409,
"GND_leaf_mm": 0.95,
"GND_leaf_width_mm": 0.3,
"capacitance_static_budget": {
"manufacturer_typical_DC_bias_curve_loss_at_12V_percent_approx": 10,
"manufacturer_typical_DC_bias_curve_loss_at_18V_percent_approx": 18,
"static_bias_loss_allowance_12V_percent": 20,
"static_bias_loss_allowance_18V_percent": 25,
"initial_min_factor": 0.9,
"temperature_min_factor": 0.85,
"aging_min_factor": 0.9,
"estimated_min_12V_uF": 0.121176,
"estimated_min_18V_uF": 0.11360250000000001,
"boundary": "Bias curves are primary manufacturer simulation / typical data, not a guaranteed worst-case capacitance bin. Temperature is the specified X7R +/-15%; initial tolerance specified10%. 10% aging reserve exceeds the sheet3% per decade-hour aging estimate for ten years from the1000h reference. This is an explicit static design estimate, not a measured output-capacitance or whole-board temperature rating."
},
"new_out_ground_leaf_current_role": "Only local capacitor return; not continuous3.18A port current.",
"C117_return_limitation": "C117 GND via lies on the broad main rear plane; U13 EP lies on a separate28.351mm\u00b2 rear outline. Actual front repairs join both, but the positive1.760409mm figure is not a complete local-loop/inductance claim.",
"current_energy_budget": {
"12V": {
"Q_uC": 2.904,
"stored_energy_uJ": 17.424
},
"18V": {
"Q_uC": 4.356,
"stored_energy_uJ": 39.204
}
}
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[
125.5,
153.1942,
"B.Cu"
],
[
125.4,
153.1942,
"B.Cu"
],
[
125.6,
153.2885,
"B.Cu"
],
[
125.5,
153.2885,
"B.Cu"
],
[
125.4,
153.2885,
"B.Cu"
],
[
125.6,
153.3827,
"B.Cu"
],
[
125.5,
153.3827,
"B.Cu"
],
[
125.4,
153.3827,
"B.Cu"
],
[
125.6,
153.4769,
"B.Cu"
],
[
125.5,
153.4769,
"B.Cu"
],
[
125.6,
153.5712,
"B.Cu"
],
[
141.2295,
139.5775,
"B.Cu"
],
[
141.2295,
139.6775,
"B.Cu"
],
[
141.2295,
139.7775,
"B.Cu"
],
[
141.3273,
139.5775,
"B.Cu"
],
[
141.3273,
139.6775,
"B.Cu"
],
[
141.3273,
139.7775,
"B.Cu"
],
[
141.425,
139.5775,
"B.Cu"
],
[
141.425,
139.6775,
"B.Cu"
],
[
141.425,
139.7775,
"B.Cu"
],
[
141.5227,
139.5775,
"B.Cu"
],
[
141.5227,
139.6775,
"B.Cu"
],
[
141.5227,
139.7775,
"B.Cu"
],
[
141.6205,
139.5775,
"B.Cu"
],
[
141.6205,
139.6775,
"B.Cu"
],
[
141.6205,
139.7775,
"B.Cu"
],
[
141.7182,
139.5775,
"B.Cu"
],
[
141.7182,
139.6775,
"B.Cu"
],
[
141.7182,
139.7775,
"B.Cu"
],
[
141.8159,
139.5775,
"B.Cu"
],
[
141.8159,
139.6775,
"B.Cu"
],
[
141.8159,
139.7775,
"B.Cu"
],
[
141.9136,
139.5775,
"B.Cu"
],
[
141.9136,
139.6775,
"B.Cu"
],
[
141.9136,
139.7775,
"B.Cu"
],
[
142.0114,
139.5775,
"B.Cu"
],
[
142.0114,
139.6775,
"B.Cu"
],
[
142.0114,
139.7775,
"B.Cu"
],
[
142.1091,
139.5775,
"B.Cu"
],
[
142.1091,
139.6775,
"B.Cu"
],
[
142.1091,
139.7775,
"B.Cu"
],
[
142.2068,
139.5775,
"B.Cu"
],
[
142.2068,
139.6775,
"B.Cu"
],
[
142.2068,
139.7775,
"B.Cu"
],
[
142.3045,
139.5775,
"B.Cu"
],
[
142.3045,
139.6775,
"B.Cu"
],
[
142.3045,
139.7775,
"B.Cu"
],
[
142.4023,
139.5775,
"B.Cu"
],
[
142.4023,
139.6775,
"B.Cu"
],
[
142.4023,
139.7775,
"B.Cu"
],
[
126.1,
150.9,
"B.Cu"
],
[
126.0,
150.9,
"B.Cu"
],
[
125.9,
150.9,
"B.Cu"
],
[
126.1,
151.0,
"B.Cu"
],
[
126.0,
151.0,
"B.Cu"
],
[
125.9,
151.0,
"B.Cu"
],
[
126.1,
151.1,
"B.Cu"
],
[
126.0,
151.1,
"B.Cu"
],
[
125.9,
151.5,
"B.Cu"
],
[
126.1,
151.6,
"B.Cu"
],
[
126.0,
151.6,
"B.Cu"
],
[
125.9,
151.6,
"B.Cu"
],
[
126.1,
151.7,
"B.Cu"
],
[
126.0,
151.7,
"B.Cu"
],
[
125.9,
151.7,
"B.Cu"
],
[
126.1,
151.8,
"B.Cu"
],
[
126.0,
151.8,
"B.Cu"
],
[
125.9,
151.8,
"B.Cu"
],
[
126.1,
151.9,
"B.Cu"
],
[
126.0,
151.9,
"B.Cu"
],
[
125.9,
151.9,
"B.Cu"
],
[
126.1,
152.0,
"B.Cu"
],
[
126.0,
152.0,
"B.Cu"
],
[
125.9,
152.0,
"B.Cu"
],
[
126.1,
152.1,
"B.Cu"
],
[
126.0,
152.1,
"B.Cu"
]
]
},
"STM_D_N": {
"sample_count": 1062,
"uncovered_count": 166,
"unanchored_reference_samples": 0,
"uncovered_first80": [
[
141.2235,
140.0775,
"B.Cu"
],
[
141.2235,
140.1775,
"B.Cu"
],
[
141.2235,
140.2775,
"B.Cu"
],
[
141.3206,
140.0775,
"B.Cu"
],
[
141.3206,
140.1775,
"B.Cu"
],
[
141.3206,
140.2775,
"B.Cu"
],
[
141.4176,
140.0775,
"B.Cu"
],
[
141.4176,
140.1775,
"B.Cu"
],
[
141.4176,
140.2775,
"B.Cu"
],
[
141.5147,
140.0775,
"B.Cu"
],
[
141.5147,
140.1775,
"B.Cu"
],
[
141.5147,
140.2775,
"B.Cu"
],
[
141.6118,
140.0775,
"B.Cu"
],
[
141.6118,
140.1775,
"B.Cu"
],
[
141.6118,
140.2775,
"B.Cu"
],
[
141.7088,
140.0775,
"B.Cu"
],
[
141.7088,
140.1775,
"B.Cu"
],
[
141.7088,
140.2775,
"B.Cu"
],
[
141.8059,
140.0775,
"B.Cu"
],
[
141.8059,
140.1775,
"B.Cu"
],
[
141.8059,
140.2775,
"B.Cu"
],
[
141.9029,
140.0775,
"B.Cu"
],
[
141.9029,
140.1775,
"B.Cu"
],
[
141.9029,
140.2775,
"B.Cu"
],
[
142.0,
140.0775,
"B.Cu"
],
[
142.0,
140.1775,
"B.Cu"
],
[
142.0,
140.2775,
"B.Cu"
],
[
125.5,
150.9,
"B.Cu"
],
[
125.4,
150.9,
"B.Cu"
],
[
125.5707,
150.9707,
"B.Cu"
],
[
125.5,
150.9,
"B.Cu"
],
[
125.504,
151.0374,
"B.Cu"
],
[
125.4333,
150.9667,
"B.Cu"
],
[
125.3626,
150.896,
"B.Cu"
],
[
125.4374,
151.104,
"B.Cu"
],
[
125.3667,
151.0333,
"B.Cu"
],
[
125.296,
150.9626,
"B.Cu"
],
[
125.3707,
151.1707,
"B.Cu"
],
[
125.3,
151.1,
"B.Cu"
],
[
125.2293,
151.0293,
"B.Cu"
],
[
126.1,
153.5,
"B.Cu"
],
[
126.0,
153.5,
"B.Cu"
],
[
125.9,
153.5,
"B.Cu"
],
[
126.1,
153.5917,
"B.Cu"
],
[
126.0,
153.5917,
"B.Cu"
],
[
125.9,
153.5917,
"B.Cu"
],
[
126.1,
153.6833,
"B.Cu"
],
[
126.0,
153.6833,
"B.Cu"
],
[
125.9,
153.6833,
"B.Cu"
],
[
126.1,
153.775,
"B.Cu"
],
[
126.0,
153.775,
"B.Cu"
],
[
125.9,
153.775,
"B.Cu"
],
[
126.1,
153.8667,
"B.Cu"
],
[
126.0,
153.8667,
"B.Cu"
],
[
125.9,
153.8667,
"B.Cu"
],
[
126.1,
153.9583,
"B.Cu"
],
[
126.0,
153.9583,
"B.Cu"
],
[
126.1,
154.05,
"B.Cu"
],
[
126.1,
154.1417,
"B.Cu"
],
[
126.1,
154.2333,
"B.Cu"
],
[
126.1,
154.325,
"B.Cu"
],
[
125.4,
151.1,
"B.Cu"
],
[
125.3,
151.1,
"B.Cu"
],
[
125.2,
151.1,
"B.Cu"
],
[
125.4,
151.2,
"B.Cu"
],
[
125.3,
151.2,
"B.Cu"
],
[
125.2,
151.2,
"B.Cu"
],
[
125.4,
151.3,
"B.Cu"
],
[
125.3,
151.3,
"B.Cu"
],
[
125.2,
151.3,
"B.Cu"
],
[
127.4,
148.1,
"B.Cu"
],
[
127.3,
148.1,
"B.Cu"
],
[
126.7,
152.3,
"B.Cu"
],
[
126.6,
152.3,
"B.Cu"
],
[
126.5,
152.3,
"B.Cu"
],
[
126.7,
152.4,
"B.Cu"
],
[
126.6,
152.4,
"B.Cu"
],
[
126.5,
152.4,
"B.Cu"
],
[
126.7,
152.5,
"B.Cu"
],
[
126.6,
152.5,
"B.Cu"
]
]
},
"Net-(U4-XTAL1)": {
"sample_count": 375,
"uncovered_count": 48,
"unanchored_reference_samples": 0,
"uncovered_first80": [
[
140.35,
137.2775,
"B.Cu"
],
[
140.4481,
137.2775,
"B.Cu"
],
[
140.5463,
137.0775,
"B.Cu"
],
[
140.5463,
137.1775,
"B.Cu"
],
[
140.5463,
137.2775,
"B.Cu"
],
[
140.6444,
137.0775,
"B.Cu"
],
[
140.6444,
137.1775,
"B.Cu"
],
[
140.6444,
137.2775,
"B.Cu"
],
[
140.7426,
137.0775,
"B.Cu"
],
[
140.7426,
137.1775,
"B.Cu"
],
[
140.7426,
137.2775,
"B.Cu"
],
[
140.8407,
137.0775,
"B.Cu"
],
[
140.8407,
137.1775,
"B.Cu"
],
[
140.8407,
137.2775,
"B.Cu"
],
[
140.9389,
137.0775,
"B.Cu"
],
[
140.9389,
137.1775,
"B.Cu"
],
[
140.9389,
137.2775,
"B.Cu"
],
[
141.037,
137.0775,
"B.Cu"
],
[
141.037,
137.1775,
"B.Cu"
],
[
141.037,
137.2775,
"B.Cu"
],
[
141.1352,
137.0775,
"B.Cu"
],
[
141.1352,
137.1775,
"B.Cu"
],
[
141.1352,
137.2775,
"B.Cu"
],
[
141.2333,
137.0775,
"B.Cu"
],
[
141.2333,
137.1775,
"B.Cu"
],
[
141.2333,
137.2775,
"B.Cu"
],
[
141.3315,
137.0775,
"B.Cu"
],
[
141.3315,
137.1775,
"B.Cu"
],
[
141.3315,
137.2775,
"B.Cu"
],
[
140.35,
137.278,
"B.Cu"
],
[
140.4367,
137.278,
"B.Cu"
],
[
140.5234,
137.178,
"B.Cu"
],
[
140.5234,
137.278,
"B.Cu"
],
[
140.6101,
137.078,
"B.Cu"
],
[
140.6101,
137.178,
"B.Cu"
],
[
140.6101,
137.278,
"B.Cu"
],
[
140.6969,
137.078,
"B.Cu"
],
[
140.6969,
137.178,
"B.Cu"
],
[
140.6969,
137.278,
"B.Cu"
],
[
140.7836,
137.078,
"B.Cu"
],
[
140.7836,
137.178,
"B.Cu"
],
[
140.7836,
137.278,
"B.Cu"
],
[
140.8703,
137.078,
"B.Cu"
],
[
140.8703,
137.178,
"B.Cu"
],
[
140.8703,
137.278,
"B.Cu"
],
[
140.957,
137.078,
"B.Cu"
],
[
140.957,
137.178,
"B.Cu"
],
[
140.957,
137.278,
"B.Cu"
]
]
},
"Net-(U4-XTAL2)": {
"sample_count": 426,
"uncovered_count": 31,
"unanchored_reference_samples": 0,
"uncovered_first80": [
[
140.35,
137.5775,
"B.Cu"
],
[
140.35,
137.6775,
"B.Cu"
],
[
140.4486,
137.5775,
"B.Cu"
],
[
140.4486,
137.6775,
"B.Cu"
],
[
140.5471,
137.5775,
"B.Cu"
],
[
140.5471,
137.6775,
"B.Cu"
],
[
140.5471,
137.7775,
"B.Cu"
],
[
140.6457,
137.5775,
"B.Cu"
],
[
140.6457,
137.6775,
"B.Cu"
],
[
140.6457,
137.7775,
"B.Cu"
],
[
140.7443,
137.5775,
"B.Cu"
],
[
140.7443,
137.6775,
"B.Cu"
],
[
140.7443,
137.7775,
"B.Cu"
],
[
140.8429,
137.5775,
"B.Cu"
],
[
140.8429,
137.6775,
"B.Cu"
],
[
140.8429,
137.7775,
"B.Cu"
],
[
140.9414,
137.5775,
"B.Cu"
],
[
140.9414,
137.6775,
"B.Cu"
],
[
140.9414,
137.7775,
"B.Cu"
],
[
141.04,
137.5775,
"B.Cu"
],
[
141.04,
137.6775,
"B.Cu"
],
[
141.04,
137.7775,
"B.Cu"
],
[
141.1386,
137.5775,
"B.Cu"
],
[
141.1386,
137.6775,
"B.Cu"
],
[
141.1386,
137.7775,
"B.Cu"
],
[
141.2371,
137.5775,
"B.Cu"
],
[
141.2371,
137.6775,
"B.Cu"
],
[
141.2371,
137.7775,
"B.Cu"
],
[
141.3357,
137.5775,
"B.Cu"
],
[
141.3357,
137.6775,
"B.Cu"
],
[
141.3357,
137.7775,
"B.Cu"
]
]
}
},
"new_CAN_launch_exception": {
"pairs": [
"CH1",
"CH2",
"CH3"
],
"rear_signal_width_mm": 0.16,
"nominal_two_side_clearance_mm": 0.16,
"rear_slot_nominal_width_mm": 0.48,
"new_uncovered_trunk_start_extent_mm": "Samples at first0.10\u20130.20mm of the nominal0.60mm trunk adjacent to the connector launch; no uncovered long-route middle identified.",
"nearest_actual_hub_bonded_via_to_gap_center_mm": 1.1810588469674062,
"local_evidence": [
{
"pair": "CH1",
"nominal_pair_launch_gap_center_mm": [
163.9,
107
],
"nearest_physically_hub_bonded_GND_vias": [
{
"uuid": "ad4b7e35-3a96-4d98-8db7-fb148185f994",
"xy_mm": [
164.75,
107.82
],
"distance_mm": 1.1810588469674062
},
{
"uuid": "495df353-c692-4c7c-8cf0-fa4c98295b1c",
"xy_mm": [
166.17,
103.6
],
"distance_mm": 4.088141386987485
},
{
"uuid": "cbefa561-574c-4641-92a4-f2acc3a65cab",
"xy_mm": [
166.17,
110.4
],
"distance_mm": 4.088141386987485
},
{
"uuid": "7d10f526-0571-434a-9905-83daba437843",
"xy_mm": [
168.8,
106.75
],
"distance_mm": 4.906373406091311
}
],
"rear_CAN_copper_near_gap": [
{
"uuid": "73687ac3-3b41-407b-83b0-281d61b88f3f",
"start_mm": [
164.1,
106.0
],
"end_mm": [
164.1,
108.8
],
"width_mm": 0.16,
"distance_to_gap_center_mm": 0.19999999999998863
}
]
},
{
"pair": "CH2",
"nominal_pair_launch_gap_center_mm": [
144.9,
107
],
"nearest_physically_hub_bonded_GND_vias": [
{
"uuid": "60ad7477-2581-44e0-a318-163b714e5ed2",
"xy_mm": [
145.75,
107.82
],
"distance_mm": 1.1810588469674062
},
{
"uuid": "4418aa1f-4388-4176-bba3-a9d82feeca45",
"xy_mm": [
147.17,
110.4
],
"distance_mm": 4.088141386987485
},
{
"uuid": "4e259511-c062-4f1a-b04d-a1ab08aed681",
"xy_mm": [
147.17,
103.6
],
"distance_mm": 4.088141386987485
},
{
"uuid": "f20d8d03-6db0-447f-a073-8647313c37b2",
"xy_mm": [
149.8,
106.75
],
"distance_mm": 4.906373406091311
}
],
"rear_CAN_copper_near_gap": [
{
"uuid": "64abef50-bc9a-4f7c-bdec-23300b1df026",
"start_mm": [
145.1,
106.0
],
"end_mm": [
145.1,
108.8
],
"width_mm": 0.16,
"distance_to_gap_center_mm": 0.19999999999998863
}
]
},
{
"pair": "CH3",
"nominal_pair_launch_gap_center_mm": [
125.9,
107
],
"nearest_physically_hub_bonded_GND_vias": [
{
"uuid": "823530dc-ea94-4327-b773-0f3b8b28cf33",
"xy_mm": [
126.75,
107.82
],
"distance_mm": 1.1810588469674062
},
{
"uuid": "026c5fc9-cc55-488d-80a3-6bd782f83fdc",
"xy_mm": [
128.169999,
103.6
],
"distance_mm": 4.088140831723018
},
{
"uuid": "8b081e49-ee96-4b5c-b1d4-de2752e31f5e",
"xy_mm": [
128.169999,
110.4
],
"distance_mm": 4.088140831723018
},
{
"uuid": "21f355e4-7c96-41e3-a07c-bd84f0077626",
"xy_mm": [
130.8,
106.75
],
"distance_mm": 4.906373406091311
}
],
"rear_CAN_copper_near_gap": [
{
"uuid": "93729cfd-61bd-4b13-88bb-713dc715db7e",
"start_mm": [
126.1,
106.0
],
"end_mm": [
126.1,
108.8
],
"width_mm": 0.16,
"distance_to_gap_center_mm": 0.19999999999998863
}
]
}
],
"disposition": "Accept as explicitly bounded additional connector-launch discontinuity for this static partial checkpoint. It does not make the local launch controlled90ohm and does not authorize crossing a long main coupled trunk with arbitrary signal or power copper. Main trunk reference remains bonded. Prefer a future face detour or actual return bridge if the slot can be eliminated."
},
"thermal_actual_copper": {
"EP_areas": [
{
"ref": "U13",
"EP_physically_hub_grounded": true,
"layers": {
"F.Cu": [
{
"zone_uuid": "91350730-5ac2-4227-90ee-eb201d87d2dc",
"outline": 1,
"area_mm2": 64.91040549781974,
"bounds_mm": [
[
165.5,
113.017405
],
[
176.0,
126.0
]
],
"actual_hub_bonded_via_count": 7
}
],
"B.Cu": [
{
"zone_uuid": "648f7cf7-8348-42c9-8a61-35ded864a551",
"outline": 1,
"area_mm2": 28.35112244447373,
"bounds_mm": [
[
165.8405,
108.5605
],
[
170.062987,
117.6895
]
],
"actual_hub_bonded_via_count": 8
}
]
}
},
{
"ref": "U14",
"EP_physically_hub_grounded": true,
"layers": {
"F.Cu": [],
"B.Cu": [
{
"zone_uuid": "648f7cf7-8348-42c9-8a61-35ded864a551",
"outline": 10,
"area_mm2": 5502.816633458306,
"bounds_mm": [
[
98.3005,
96.9005
],
[
186.5995,
175.6995
]
],
"actual_hub_bonded_via_count": 99
}
]
}
},
{
"ref": "U15",
"EP_physically_hub_grounded": true,
"layers": {
"F.Cu": [],
"B.Cu": [
{
"zone_uuid": "648f7cf7-8348-42c9-8a61-35ded864a551",
"outline": 10,
"area_mm2": 5502.816633458306,
"bounds_mm": [
[
98.3005,
96.9005
],
[
186.5995,
175.6995
]
],
"actual_hub_bonded_via_count": 99
}
]
}
},
{
"ref": "U16",
"EP_physically_hub_grounded": true,
"layers": {
"F.Cu": [],
"B.Cu": [
{
"zone_uuid": "648f7cf7-8348-42c9-8a61-35ded864a551",
"outline": 10,
"area_mm2": 5502.816633458306,
"bounds_mm": [
[
98.3005,
96.9005
],
[
186.5995,
175.6995
]
],
"actual_hub_bonded_via_count": 99
}
]
}
},
{
"ref": "U4",
"EP_physically_hub_grounded": true,
"layers": {
"F.Cu": [],
"B.Cu": [
{
"zone_uuid": "648f7cf7-8348-42c9-8a61-35ded864a551",
"outline": 10,
"area_mm2": 5502.816633458306,
"bounds_mm": [
[
98.3005,
96.9005
],
[
186.5995,
175.6995
]
],
"actual_hub_bonded_via_count": 99
}
]
}
}
],
"full_native_area_receipt": "static-260-native-geometry-review.json",
"U13_front_actual_mm2": 64.91040549781974,
"U13_rear_actual_mm2": 28.35112244447373,
"U13_second_independent_return_Ftrack_mm": 1.6566225887963102,
"second_tie_Ftrack_only_theta_K_per_W_at_k385_minwidth": 128.06297068617118,
"boundary": "Finite actual-area improvement and two electrical return paths; neither copper area nor native joins establish junction-to-ambient. The short .60mm second front tie alone is~128K/W before thermal interfaces, via/PTH paths and spreader temperature. No fixed-temperature ground sink assumed.",
"device_dissipation_at_3p178571A_W": 0.6496120705306239,
"max_continuous_current_rating": "Unestablished. Original5A aggregate input boundary retained; all-four3A excluded. No new5A/50C or per-port3.18A/50C rating.",
"peripheral_polygons_excluded_from_spreader_area": [
{
"layer": "F.Cu",
"zone_uuid": "91350730-5ac2-4227-90ee-eb201d87d2dc",
"outline_index": 0,
"physically_hub_connected_anchor_count": 0,
"example_anchor_uuids": [],
"anchored": false
},
{
"layer": "F.Cu",
"zone_uuid": "91350730-5ac2-4227-90ee-eb201d87d2dc",
"outline_index": 2,
"physically_hub_connected_anchor_count": 0,
"example_anchor_uuids": [],
"anchored": false
}
],
"peripheral_polygon_connectivity_correction": "Earlier point-center anchor screen was conservative. Individual geometric-polygon graph proves peripheral outlines reach hub ground through actual copper contacts. Only main64.9104mm\u00b2 outline is counted in the stated front spreading area; peripheral outlines remain excluded from that quantitative area.",
"front_spreader_actual_additional_main_ground_path": {
"ground_via_uuid": "915e13e8-22ad-4ac5-887c-c24e6d6cabc1",
"position_mm": [
170.95,
117.25
],
"path": "U13 EP\u2192front filled outline1\u2192actualGND via\u2192broad rear outline10\u2192hubEP ground vias"
}
},
"CAN0_L_relocation_trial": {
"source_sha256": "88f857f05e2686d022dae40da82a950d03c6e2be74b271ee42fa4036c94f6ea9",
"canonical_imported": false,
"native_gap_items": 204,
"new_copper_count": 168,
"changed_existing_count": 16,
"unexpected_changes": [],
"manual_intent_failures": [],
"lost_old_pad_joins": [],
"moved_GND_vias": [
{
"uuid": "c3a4d401-4527-4eb6-88ce-6fc1a3499693",
"ref": "J8",
"present": true,
"xy_mm": [
109.12,
111.3
],
"expected_xy_mm": [
109.12,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"67fb0c45-3517-4ddc-a398-7a5f790beaac"
]
},
{
"uuid": "8657ae36-03d4-4c63-85cf-de91c656ae86",
"ref": "J8",
"present": true,
"xy_mm": [
110.88,
111.3
],
"expected_xy_mm": [
110.88,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"f3d55200-5a70-44d6-a1c6-067bbd5a14ce"
]
},
{
"uuid": "8b081e49-ee96-4b5c-b1d4-de2752e31f5e",
"ref": "J7",
"present": true,
"xy_mm": [
128.12,
111.3
],
"expected_xy_mm": [
128.12,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"3f79130e-c04e-43b8-82e1-49400c226d70"
]
},
{
"uuid": "3ceba836-6be7-4bcf-93e0-ec758025c76b",
"ref": "J7",
"present": true,
"xy_mm": [
129.88,
111.3
],
"expected_xy_mm": [
129.88,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"83fb0111-c185-4c68-9a4d-2d75f17f81d2"
]
},
{
"uuid": "4418aa1f-4388-4176-bba3-a9d82feeca45",
"ref": "J6",
"present": true,
"xy_mm": [
147.12,
111.3
],
"expected_xy_mm": [
147.12,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"cc942333-5e0e-4d04-91a7-db60793042f5"
]
},
{
"uuid": "078b404e-10d4-4af7-8e9b-346efb637f25",
"ref": "J6",
"present": true,
"xy_mm": [
148.88,
111.3
],
"expected_xy_mm": [
148.88,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"ae63f705-1c05-4d79-8e90-7fe163c5af1e"
]
},
{
"uuid": "cbefa561-574c-4641-92a4-f2acc3a65cab",
"ref": "J5",
"present": true,
"xy_mm": [
166.12,
111.3
],
"expected_xy_mm": [
166.12,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"9552828e-c72d-47ad-b768-b2b6af422dfa"
]
},
{
"uuid": "469e97ca-f12e-41f6-ad3a-f3bed16d7070",
"ref": "J5",
"present": true,
"xy_mm": [
167.88,
111.3
],
"expected_xy_mm": [
167.88,
111.3
],
"net": "GND",
"joins_actual_hub_ground": true,
"new_branch_uuids": [
"d817d447-a58f-492b-805d-6e7a09b41465"
]
}
],
"isolated_L_only_EP_main_outline_mm2": 5641.087392430445,
"moved_return_contact_path": {
"neck_nominal_width_mm": 0.2,
"neck_centerline_length_mm": 0.3,
"wide_branch_width_mm": 0.6,
"wide_branch_length_mm": 1.2509996003196806,
"assumed_barrel_diameter_mm": 0.3,
"assumed_barrel_plating_um": 18,
"board_mm": 0.8,
"rho_at85C_ohm_m": 2.139e-08,
"copper_width_allowance_fraction": 0.8,
"new_trace_plus_barrel_R_ohm": 0.0023780303713976697,
"old_trace_plus_barrel_R_ohm": 0.00225007259012273,
"delta_R_ohm": 0.00012795778127493987,
"approximate_contact_current_A": 0.8,
"new_drop_mV_at_0p8A": 1.9024242971181358,
"new_loss_mW_at_0p8A": 1.5219394376945088,
"allocation": "Four physical GND contacts retained. About0.8A/contact is the equal-sharing estimate at3.18A, not a guaranteed sharing limit."
},
"disposition": "Accept isolated reversibleL-only geometry experiment under exact declared16 migrations. H remains incomplete here; do not transfer broad-plane thermal area or partial-completebus claim to a merge without fresh actual-fill and native-connectivity evidence. Canonical import must retain20pF clock metadata."
},
"primary_sources": [
"https://www.ti.com/lit/ds/symlink/tps25944a.pdf",
"https://search.kemet.com/download/specsheet/C0603C224K5RACTU",
"https://www.ti.com/lit/an/spraar7j/spraar7j.pdf",
"https://jlcpcb.com/capabilities/pcb-capabilities/"
],
"qualification_boundary": [
"HardwareUSB/thermal/transientqualification remains distinct from staticMVP review, not a lab approval gate.",
"Nominal12V supply only; inherited SMAJ16CA26V clamp does not establish survival of20V-absolute-max power parts.",
"Selectedfilled/cappedVIPprocess and exactthin2ozcombination remain statedfabrication assumptions, not a placedorder."
],
"normalization_review_binding": {
"before_board_sha256": "3bbe97ac9834bdecd69b28a8c983b07ec951a77e636acfc32f6a7495c11941e0",
"before_finite_review": "workspace/work/agents/thermal_si/integration_next/static-260-finite-review.json",
"before_finite_review_sha256": "646f8a7608fc4eaa5e3d13be873aaced29e4c0076d3c70ad4717aefdc91f1ae4",
"native_geometry_identity": "workspace/work/agents/thermal_si/integration_next/normalized-static-260-identity.json",
"identity_status": "PASS_EXACT_NATIVE_GEOMETRY_AND_SAVED_FILL_IDENTITY",
"all3102_tracks_vias_identical": true,
"all260_footprint_pad_model_geometry_identical": true,
"all49_zone_outline_saved_fill_geometry_identical": true,
"all6_EdgeCuts_identical": true,
"fresh23_ground_site_count": 23,
"fresh23_ground_sites_physically_hub_connected": true,
"fresh23_ground_net_intent_preserved": true,
"process_metadata_boundary": "Reviewed normalizer changes via process flags and four X7R capacitor property fields only. No geometry/fill/net changes. Exact static routing/return/EP-area review transfers; selected manufacturing process evidence remains separate."
},
"individual_polygon_ground_proof": {
"receipt": "workspace/work/agents/thermal_si/integration_next/normalized-static-260-individual-polygon-graph.json",
"receipt_sha256": "706e2a6cd407c536c2c71ef8df3cfc3b2d6a5f039f4e2a145797f573d68d0051",
"method": "Each saved outline including its hole contours is a distinct node. Same-face effective native copper shapes contact with zero clearance. Only actual via/PTH barrels join layers. No GetConnectedItems or whole-zone union is used. All nodes classify as GND, but no net label creates an edge.",
"graph_nodes": 1044,
"all23_ground_sites_reach_actual_U4_EP": true,
"negative_stitch_cut_controls_pass": true,
"U13_return_cases": [
{
"scenario": "all_copper",
"U13_EP_reaches_actual_U4_EP": true
},
{
"scenario": "first_return_removed_second_present",
"U13_EP_reaches_actual_U4_EP": true
},
{
"scenario": "second_return_removed_first_present",
"U13_EP_reaches_actual_U4_EP": true
},
{
"scenario": "both_explicit_returns_removed",
"U13_EP_reaches_actual_U4_EP": true
},
{
"scenario": "first_only_front_spreader_and_second_removed",
"U13_EP_reaches_actual_U4_EP": true
},
{
"scenario": "second_only_front_spreader_and_first_removed",
"U13_EP_reaches_actual_U4_EP": true
},
{
"scenario": "negative_all_three_returns_removed",
"U13_EP_reaches_actual_U4_EP": false
}
],
"GND_pad_faces_not_reaching_root": [
{
"key": "eca15a4e-f2e1-428a-9eb5-74f94ec9376f:F.Cu",
"meta": {
"kind": "pad",
"uuid": "eca15a4e-f2e1-428a-9eb5-74f94ec9376f",
"ref": "J3",
"pin": "A1",
"xy_mm": [
109.5181,
141.0
]
}
},
{
"key": "a5a2e1bb-dd3b-4650-a27f-1cf05a946e1e:F.Cu",
"meta": {
"kind": "pad",
"uuid": "a5a2e1bb-dd3b-4650-a27f-1cf05a946e1e",
"ref": "J3",
"pin": "B12",
"xy_mm": [
108.1181,
141.25
]
}
},
{
"key": "067049f2-d542-4951-bb71-a14574e3aa2b:F.Cu",
"meta": {
"kind": "pad",
"uuid": "067049f2-d542-4951-bb71-a14574e3aa2b",
"ref": "J3",
"pin": "MP1",
"xy_mm": [
108.1181,
140.7
]
}
}
],
"preexisting_host_island": [
"J3:A1",
"J3:B12",
"J3:MP1"
],
"preexisting_host_boundary": "DRC independently proves the three-pad host island already exists in published e009 and no previous physical pad pair is lost. All23 return-site acceptance does not mean every host GND pad is joined. The198-gap checkpoint remains partial."
}
}
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