Heavy Copper PCB Manufacturing – High Current Heavy Copper Circuit Board
Heavy Copper PCB Manufacturing Advantage
In-house Integration
Complete in-house manufacturing capabilities for heavy copper PCB production, from copper deposition to final testing, ensuring quality control at every stage.
Advanced Equipment
Specialized plating and etching equipment designed for thick copper processing, capable of handling copper weights from 3oz to 60oz reliably.
High-Mix, Low-Volume
Extensive experience handling high-mix, low-volume heavy copper orders with quick turnaround for prototype and pre-production runs.
Advanced Heavy Copper PCB Production Excellence
Heavy Copper Plating
Advanced plating technology for uniform copper deposition on heavy copper boards, ensuring consistent current carrying capacity and thermal performance.
Thermal Management
Integrated thermal management solutions including metal core substrates, IMS technology, and thermal vias for effective heat dissipation.
Trace Design Optimization
Engineering team provides DFM feedback to optimize trace width and spacing for your specific current requirements and thermal constraints.
Multi-layer Heavy Copper
Capability to manufacture multi-layer heavy copper PCBs up to 12 layers with selective heavy copper on specific layers for complex applications.
Heavy Copper PCB Manufacturing Capability
| Specification | Our Capability |
| Copper Weight | 3oz – 20oz (standard), up to 60oz available |
| Number of Layers | 1-12 layers |
| Min Line Width/Spacing | 0.3mm / 0.3mm (heavy copper) |
| Min Hole Size | 0.5mm (depends on copper weight) |
| Max Board Size | 1000mm x 600mm |
| Thermal Management | Metal core, IMS, thermal vias |
| Surface Finish | ENIG, Immersion Tin, HASL, OSP |
| PCB Thickness | 0.8mm – 6.0mm |
Quality Control of Heavy Copper PCB
Quality Control Equipment
- Automated Optical Inspection (AOI)
- Cross-Section Analysis
- Thermal Cycling Test
- Current Carrying Capacity Test
Quality Standard Certificates
- ISO 9001:2015
- ISO 14001:2015
- IPC Class 2/3
- UL Certification
Heavy Copper PCB Application
- Electric Vehicles (EV): Battery management systems (BMS), OBC, DC-DC converters
- Industrial Power: Servo drives, CNC machine controls, robotics power systems
- Renewable Energy: Solar inverters, wind turbine converters, energy storage systems
- Power Supplies: SMPS, UPS systems, battery chargers
- Welding Equipment: Industrial rectifiers, arc welding machines
- Automotive: EV charging stations, automotive electrical systems
Heavy Copper PCB FAQ
What is the difference between heavy copper and standard PCB copper weight?
Standard PCBs typically use 1oz-2oz copper weight. Heavy copper PCBs have copper weights of 3oz or more, allowing them to carry significantly higher currents while reducing heat generation and voltage drop.
What copper weight do I need for my high-current application?
For approximately 3A-4A current capacity, you would need about 4oz copper at 1mm width. Our engineering team can provide specific recommendations based on your current requirements and thermal constraints.
Heavy Copper PCB Solutions
Read our technical articles about heavy copper PCB design best practices and manufacturing considerations for high-current applications.