Short answer: Medical PCBs are built to IPC-6012 Class 3 (barrel copper >=25 um, no breakout, three-step desmear) under an ISO 13485 system, with FDA 21 CFR 820.184 traceability that ties every lot, process parameter, operator and test result together and keeps records 10-15 years. YUESHAN supplies the drilling consumables with a matching evidence pack (CoC, lot records, TDS/SDS, ISO 9001) — we supply materials, we do not manufacture finished medical devices.
Number: IPC-6012 Class 3 requires barrel copper >=25 um, no breakout and a three-step desmear. ISO 13485:2016 and FDA 21 CFR 820.184 drive full traceability (material lot, process parameters, operator, test) retained 10-15 years. Proof points include thermal shock IPC-TM-650 2.6.7 (-65 to +125 degC, 100-500 cycles), IST 2.6.26 >=500 cycles, ionic cleanliness <1.56 ug/cm2 NaCl eq, UL 94 V-0, halogen-free IEC 61249-2-21 and cleanroom ISO 14644-1 class 7 (atlaspcb, ltpcba, gopcba, bestpcbs).
Boundary: YUESHAN supplies drilling consumables and an evidence pack (CoC, lot traceability, TDS/SDS, system certificates). We are a material supplier, not a medical-device manufacturer, and we do not certify finished devices.
Medical electronics cannot afford a silent failure. The drilling and material evidence chain behind a medical PCB is what lets a fabricator prove the board meets Class 3 and can be traced back to every lot and parameter.
What Class 3 and the standards require
| Requirement | Reference | Target |
|---|---|---|
| Barrel copper, no breakout | IPC-6012 Class 3 | >=25 um, three-step desmear |
| Quality system | ISO 13485:2016 | Medical QMS |
| Traceability | FDA 21 CFR 820.184 | Lot/params/operator/test, 10-15 yr |
| Thermal shock | IPC-TM-650 2.6.7 | -65 to +125 degC, 100-500 cycles |
| Interconnect stress | IPC-TM-650 2.6.26 (IST) | >=500 cycles |
| Ionic cleanliness | IPC-TM-650 2.3.25 | <1.56 ug/cm2 NaCl eq |
| Flammability / halogen | UL 94 V-0 / IEC 61249-2-21 | V-0, halogen-free trend |
The YUESHAN evidence pack
YUESHAN supplies the entry and backup consumables used in medical PCB drilling with the documentation a Class 3 line needs: certificate of conformance, per-lot records, TDS/SDS and ISO 9001 system certification, under cleanroom-aware handling (ISO 14644-1 class 7 context). We supply materials; the fabricator owns the device-level certification. See the medical and diagnostic drilling page and the editorial standards page for how we document sources.
