In PCB proofing, a layer of copper is bonded on the fr-4 surface. When copper thickness ≥ 2OZ is carried out, it is defined as thick copper plate. Its thickness is different, the actual usable place is also very different.
The application of thick copper plate in PCB proofing is basically ubiquitous. It can be used in a wide range of industries, including a variety of household appliances, new technology products, national defense, diagnosis and treatment and other electronic equipment. Thick copper plate has good widening performance, heat resistance, ultra-low temperature, corrosion resistance, so that electronic equipment goods have a longer life, in addition to the volume of electronic equipment has a very large simplification of assistance. In particular, it is necessary to operate higher voltage and current flow of electronic equipment must be thick copper plate.
4L FR4 PCB
2OZ copper in each layer