Heavy Copper
(67 reviews)
Heavy Copper
Heavy Copper PCB
High current capacity boards with thick copper layers for power electronics
Key Features
High Current
Up to 20A per trace
Thick Copper
3-10 oz copper weight
Thermal Management
Excellent heat spreading
Power Applications
Industrial power systems
Specifications
| Copper Weight | 3-10 oz (105-350μm) |
| Current Capacity | Up to 20A |
| Layer Count | 2-20 layers |
| Thickness | 1.6mm - 6.0mm |
| Applications | Power supplies, Motor drives |
Engineering considerations
Manufacturing review before quote
Heavy copper designs should be reviewed against current capacity, thermal spreading, copper distribution, etching limits, drill capability, and the final assembly process before the stackup is fixed.
- Confirm finished copper weight, current target, allowable temperature rise, and whether the quoted value is starting foil or finished copper.
- Review via count, hole size, plating, copper balance, and thermal paths where high-current nets change layers.
- Share board thickness, isolation, terminal style, and assembly requirements because heavy copper changes drilling, etching, soldering, and panel planning.
Typical applications
Power supplies, Motor drives