Heavy Copper PCB
Extreme Heavy Copper PCB Manufacturing
3oz to 50oz Finished Copper • True Mass Production Capability • 2026 Edition
What is Heavy Copper PCB?
Heavy copper PCB refers to printed circuit boards with copper thickness ≥ 3oz (105μm) on inner or outer layers. Standard copper weight in conventional PCBs is typically 1oz (35μm) or 2oz (70μm).
In 2026, with the rapid development of 800V/1200V EV platforms, next-generation SiC/GaN power modules, AI data center power delivery, and solid-state battery systems, copper thickness commonly ranges from 3oz to 30oz in industrial applications, and in extreme cases, can reach 40oz to 50oz per square foot for ultra-high-power applications.
Our Heavy Copper PCB Capabilities (Industry-Leading, 2026)
Maximum Copper Weight (2026 Expanded)
| Layer Type | 2024 Capability | 2026 New Capability |
|---|---|---|
| Outer Layers | 3oz – 40oz | 3oz – 50oz |
| Inner Layers | 3oz – 30oz | 3oz – 40oz |
Maximum Layer Count with Heavy Copper (2026 Record)
| Copper Weight | 2024 Max Layers | 2026 Max Layers |
|---|---|---|
| 20oz – 30oz | 24 layers | 32 layers |
| 30oz – 40oz | 12 layers | 20 layers |
| 40oz – 50oz | 6 layers | 12 layers |
Minimum Trace Width / Spacing (2026 Mass Production Proven)
| Copper Weight | Min Trace Width | Min Spacing | Min Drill | 2026 Improvement |
|---|---|---|---|---|
| 3oz – 6oz | 0.25mm | 0.25mm | 0.25mm | -17% vs 2024 |
| 8oz – 12oz | 0.35mm | 0.30mm | 0.35mm | -13% vs 2024 |
| 16oz – 20oz | 0.45mm | 0.45mm | 0.45mm | -10% vs 2024 |
| 25oz – 30oz | 0.65mm | 0.65mm | 0.55mm | -19% vs 2024 |
| 40oz | 1.00mm | 1.00mm | 0.70mm | -17% vs 2024 |
| 50oz (NEW 2026) | 1.50mm | 1.50mm | 1.00mm | Industry First |
Industries & Applications We Serve (2026 Expanded)
Electric Vehicles & Next-Gen Mobility
- ▸ 800V/1200V SiC inverter: 20-30oz, 12-20L
- ▸ 1MW+ Ultra-fast Charger: 30-50oz, 8-16L
- ▸ Solid-state Battery BMS: 12-16oz, 8-12L
- ▸ eVTOL Power Systems: 20-30oz, 12-16L
AI Computing & Data Center Power
- ▸ NVIDIA GB200/GB300: 16-20oz, 20-28L
- ▸ AMD MI400 Accelerator: 12-16oz, 16-24L
- ▸ 48V-1V VRM Modules: 10-14oz, 12-20L
- ▸ Liquid-cooled Power PCB: 16oz + channels
Renewable Energy & Grid Infrastructure
- ▸ 1500V+ String Inverter: 20-30oz, 10-16L
- ▸ Energy Storage PCS: 20-30oz, 12-20L
- ▸ Grid-forming Inverter: 16-20oz, 12-16L
- ▸ Offshore Wind Converter: 20-40oz, 12-20L
Military, Aerospace & Defense
- ▸ Radar T/R Module: 20-30oz + PTFE
- ▸ Directed Energy Weapon: 40-50oz, 8-12L
- ▸ Satellite Power Systems: 16oz polyimide
- ▸ Submarine Distribution: 40-50oz, 8-12L
Rail & Heavy Transportation
- ▸ High-speed Rail Traction: 20-40oz, 12-20L
- ▸ Metro Auxiliary Power: 16-20oz, 8-12L
- ▸ Electric Mining Truck: 30-50oz, 8-16L
- ▸ Marine Propulsion: 30-40oz, 12-16L
Industrial Power & Automation
- ▸ Humanoid Robot Driver: 12-16oz, 8-12L
- ▸ Industrial Welding: 20oz + copper coin
- ▸ High-power Servo: 12-20oz, 8-16L
- ▸ Semiconductor Fab: 20-30oz, 12-20L
Why We Are Different (2026 Competitive Advantages)
Mass Production Scale
20,000+ sqm
Monthly 12-20oz capacity
3x larger than competitors
Zero Failures
200,000+ pcs
Since 2021, zero field failures
5-year proven track record
Tightest Trace
0.45mm @ 20oz
45% smaller than industry avg
Reduces board size by 30%
Fastest Delivery
5 days
First article for ≤12oz
15 days for 20oz (vs 45 days avg)
2026 Production Statistics
50,000+
sqm/month (3-10oz)
20,000+
sqm/month (12-20oz)
8,000+
sqm/month (25-30oz)
2,000+
sqm/month (40-50oz)
Customer Testimonials (2026 Real Projects)
"We have been working with this factory since 2021 for our 800V EV power modules. In 2026, they helped us move to 1200V SiC platform with 30oz heavy copper — something only 2 factories in the world could quote. Their 0.65mm trace at 30oz allowed us to shrink the inverter by 35%. Zero field failures across 80,000 units shipped."
VP of Hardware Engineering
Tesla Tier-1 Supplier, USA
Project: 30oz, 20-layer, 800V to 1200V upgrade
"For our NVIDIA GB200 power delivery module, we needed 20oz heavy copper with 24-layer count and direct liquid cooling channel integration. This factory was the only one who could mass-produce it within 15 days. Their engineering team worked with us to optimize the power plane layout, improving current distribution by 22%."
Principal Power Architect
Hyperscale Data Center, USA
Project: 20oz, 24-layer with liquid cooling channels
"We switched to their 40oz heavy copper PCB for our megawatt-class EV charger in 2025. The traditional busbar approach was too heavy and complex. Their embedded busbar PCB solution reduced weight by 60% and assembly time by 50%. Now we are designing all new 1MW+ chargers with their heavy copper technology."
Chief Engineer
Leading EV Charging Infrastructure Company, Germany
Project: 40oz embedded busbar PCB, 1MW charger
Pricing Guide (2026, Transparent)
*Prices shown are 2026 rates, approximately 8–12% lower than 2024 due to process optimization and scale. Final pricing depends on board size, drill count, surface finish, and order quantity.
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True Extreme Heavy Copper. True Mass Production. True Zero Excuses.
We don't just make heavy copper PCBs. We make the most advanced heavy copper PCBs on the planet — and we deliver them faster than anyone else.