Reliable drilling consumables for long-life, harsh-environment automotive boards.
Automotive boards are qualified for 15-year life under heat, vibration and humidity. Drilling scrap on a qualified lot is not an option — moisture-stable backup and a consistent entry keep yield high and traceability clean.
Each grade below is matched to the hole size, layer count and reliability target of Automotive PCB boards. Tap any card for specs and a free sample.
Our recommended default — resists warping better than melamine-laminate and costs ~20% less; ideal for thick copper and long-reliability automotive boards.
View material →Industry-standard first-entry for clean top-side and repeatable location.
View material →For ADAS and high-speed links where stub length must be controlled.
View material →Kept for routing worktables and specific IC jobs — available on request, not our primary push.
View material →A car PCB is drilled once and expected to survive a decade of thermal cycling. A single buried burr can open a joint years later. Yields are qualified per lot, so a 1% scrap spike is a line stop, not a footnote.
The drilling consumables carry more of that risk than they appear to:
| Board | Grade | Role | Note |
|---|---|---|---|
| Backup | UV Melamine 950 | Thick copper, safety layers | Anti-warp, ~20% below laminate cost |
| Entry | 1100 H18 | All panels | Clean top, repeatable location |
| Back-drill | HW600 / HW900 | ADAS / high-speed | Stub CpK ≥1.33 (HW600), ≥1.67 (HW900) |
Samples are supplied with full lot traceability and an SGS / REACH declaration. PPAP-style documentation can be arranged on request. Engineering support covers the full stack-up, not just the drill pass.
📖 Further reading: How to Choose the Right PCB Backup Board · Glossary: PPAP definition →
Q: Which backup for 4 oz copper automotive? A: UV Melamine 950 — our recommended default. It resists warping better than melamine-laminate and costs about 20% less, while keeping the exit clean on thick copper. Phenolic PHE is available on request for routing worktables and specific IC jobs.
Q: Is back-drilling needed on every automotive board? A: Only on high-speed links (ADAS, radar, gateway). For those, HW900 holds the tightest stub CpK.
Q: Can you support PPAP documentation? A: Yes — lot traceability and compliance declarations ship with samples, and full PPAP packages are available on request.
Send your layer count, smallest hole and current material. We return a matched grade set, samples and a side-by-side comparison — usually within one business day.
Talk to Mr. Lucky Xu →