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Home > Solutions > PCB Family > High Tech PCBs > Heavy copper PCB
  • Automotive-Grade PCBs
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  • Automotive-Grade PCBs

3 OZ PCB ~ 30 OZ Heavy copper PCB

SKU: Production Parameters , Not Product SKUs
♪ Thick copper PCB ♫ 3‑6oz ♩ 10‑30oz ♬ Quality & reliability test report 𝄞 free prototype
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  • Automotive-Grade PCBs
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  • Automotive-Grade PCBs
  • Description
♪

Thick Copper PCB · ≥3oz

♪ Email your Gerber files – our senior engineers will analyze your design and provide a free DFM report.

♪ Gerber design requirements (outer layer copper ≥3oz)

Copper thickness Inner layer min. line/space (mm) Outer layer min. line/space (mm)
3OZ (105µm) 0.20 / 0.20 0.25 / 0.30
4OZ (140µm) 0.25 / 0.25 0.30 / 0.30
5OZ (175µm) 0.35 / 0.35 0.40 / 0.40
6OZ (210µm) 0.40 / 0.40 0.45 / 0.50

♪ Quality test standards

♪ Thermal stress
288℃ solder float, 10s, 3x
IPC 2: no delamination, no barrel cracks
IPC 3: continuous copper, no micro‑cracks
Ensures hole integrity
♪ Peel strength
90° peel test
≥1.2 N/mm (thick copper requirement)
Low‑stress plating · trace stability
♪ Peel after thermal stress
Peel strength after thermal stress
≥1.0 N/mm
Suitable for reflow soldering
♪ Cross‑section analysis
Microsection examination
Continuous hole copper, no cracks
Ensures hole integrity
♪ Solder mask adhesion
Cross‑hatch (tape) test
5B (no peeling)
Excellent insulation
♪ Board flatness
IPC‑TM‑650 2.4.22
≤0.75%
Suitable for SMT assembly
♪ IPC‑6012 compliant ♪ 100% tested ♪ Full reports available
𝄞 New customer: buy one SMIERY → free prototype. Prototyping fee deducted from volume order.
First order benefit
𝄞 Need thick copper? Email Gerber to – our senior engineers will analyze your design.
email for DFM
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