Heavy copper PCBs
What is a heavy copper PCB?
It is a PCB made with two or more conductive copper layers. The conductive foil appears to be thicker than on standard PCBs. The different inner layers are processed in pairs (on a core) and then bonded together using prepreg as the insulating layer. The layers are then placed in such a way that both sides of the PCB can be used to mount components with additional tracking/electrical connections on the inside of the board. Vias are used as a source of the electrical connections between the different layers of the PCB.
More and more products are using heavy copper PCBs, for example EV-chargers, high current systems and power storage systems.
Please contact your local NCAB Group company if you need further information or assistance, we are happy to help you.
| Feature | NCAB´s technical specification |
|---|---|
| Number of layers | 4 – 22 layers standard, 30 layers advanced, 40 layers prototype, much depending on copper thickness. |
| Technology highlights | Multiple layers of epoxy glass fiber bonded together with multiple layers of copper of varying thicknesses. |
| Materials | High performance FR4, halogen-free FR4 |
| Copper weights (finished) | 18-210µm, advanced 1050µm / 30 Oz |
| Minimum track and gap | 0,075mm / 0,075mm (very much depending on copper thickness) |
| PCB thickness | 0.40mm – 7.0mm, Min thickness depending on number of layers and copper thickness |
| Maxmimum dimensions | 580mm x 1080mm, advanced 610mm x 1400mm |
| Surface finishes available | HASL (SnPb), LF HASL (SnNiCu), OSP, ENIG, Immersion Tin, Immersion Silver, Electrolytic gold, Gold fingers (HASL / LF HASL not recommended) |
| Minimum mechanical drill | 0.20mm |
Download our PCB design guidelines
Use our design guidelines to get your PCB design right from the start.
Contact your local company
Please contact your local NCAB Group company if you need further information or assistance, we are happy to help you.