PCB Design Rules - fusion/adom-3rdpartyfab-2L.dru

by adom

Canonical PCB fab design rules (DRC) for every popular vendor: one JSON record per vendor, process and layer count, with generated Fusion/EAGLE .dru and .edru, KiCad .kicad_dru plus board-setup JSON, Altium .RUL exports, and a human comparison table. Every number cites the vendor's own capabilities page and the date it was read.

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John Lauer Document 1 oz finished copper standard and 2 oz request option; preserve existing DRC limits fce5c48 8d ago

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description[3rd party fab 2-layer design rules (standard process) |  | Min trace width: 0.1 mm (3.94 mil) - 1 oz copper | Min spacing: 0.1 mm (3.94 mil) - 1 oz copper, different nets | Min drill: 0.15 mm (5.91 mil) | Min via: 0.15 mm hole / 0.25 mm pad | Annular ring: via 0.1 mm, pad 0.18 mm | Copper to board edge: 0.2 mm | Hole to hole: 0.2 mm | Drill range: 0.15 mm to 6.3 mm | Board thickness options: 1.6 mm | Copper weight options: 1 oz, 2 oz |  | Baseline of the 3rd party fab service. Preferred values in the seed file: default class preferred track 0.2 mm, power class preferred 0.3 mm; preferred via hole 0.2 mm (0.25 mm in the shipped file). Min via allowed on 2-layer. Finished surface copper: 1 oz standard; 2 oz on request (John Lauer, 2026-10-12). Existing weight-conditioned DRC limits remain for 1 oz; confirm 2 oz DFM before use. Hole-barrel plating and thickness tolerances are not specified by this confirmation. |  | Sources: | - adom/fusion-bridge addin/AdomBridge/resources/dru/Adom-3rdPartyFab-2-Layer.edru (read 2026-09-03) | - https://wiki.adom.inc/adom/pcb-design-rules/files/docs/3rdpartyfab-finished-copper.md (read 2026-10-12)]

layerSetup = (1*16)
mtCopper = 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm
mtIsolate = 1.6mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm
mdWireWire = 3.94mil
mdWirePad = 3.94mil
mdWireVia = 3.94mil
mdPadPad = 5.91mil
mdPadVia = 3.94mil
mdViaVia = 3.94mil
mdSmdPad = 3.94mil
mdSmdVia = 3.94mil
mdSmdSmd = 3.94mil
mdCopperDimension = 7.87mil
mdDrill = 7.87mil
msWidth = 3.94mil
msDrill = 5.91mil
mdViaViaSameLayer = 6mil
mdSmdStop = 0mil
msMicroVia = 12mil
msBlindViaRatio = 0.5
rvPadTop = 0
rvPadInner = 0
rvPadBottom = 0
rvViaOuter = 0
rvViaInner = 0
rvMicroViaOuter = 0
rvMicroViaInner = 0
rlMinPadTop = 7.09mil
rlMaxPadTop = 80mil
rlMinPadInner = 7.09mil
rlMaxPadInner = 20mil
rlMinPadBottom = 7.09mil
rlMaxPadBottom = 80mil
rlMinViaOuter = 3.94mil
rlMaxViaOuter = 20mil
rlMinViaInner = 3.94mil
rlMaxViaInner = 20mil
rlMinMicroViaOuter = 3.94mil
rlMaxMicroViaOuter = 20mil
rlMinMicroViaInner = 3.94mil
rlMaxMicroViaInner = 20mil
psTop = -1
psBottom = -1
psFirst = -1
psElongationLong = 100
psElongationOffset = 100
mvStopFrame = 0
mvCreamFrame = 0
mlMinStopFrame = 1.5mil
mlMaxStopFrame = 4mil
mlMinCreamFrame = 0mil
mlMaxCreamFrame = 0mil
mlViaStopLimit = 20mil
srRoundness = 0
srMinRoundness = 0mil
srMaxRoundness = 0mil
slThermalIsolate = 10mil
slThermalsForVias = 0
dpMaxLengthDifference = 400mil
dpGapFactor = 2.5
checkAngle = 0
checkRestrict = 1
checkStop = 0
checkValues = 0
checkNames = 1
checkWireStubs = 1
checkPolygonWidth = 0
useDiameter = 13
maxErrors = 50