What is thick copper PCB?

The thick copper PCB is characterized by a structure with a copper thickness of 105 to 400 μm. These PCBs are used for large (high) current output and optimized thermal management. Thicker copper allows larger PCB cross-sections to be used for high current loads and helps dissipate heat. The most common design is a multilayer or double-sided design. Using this PCB technology, the fine layout structure of the outer layer can also be combined with the thick copper layer of the inner layer.

The performance of thick copper PCB:

Thick copper PCB has the best elongation performance and is not limited by processing temperature. It can be used in hot-melt welding methods, such as blowing oxygen at a high melting point and not brittle at low temperatures. Even in an extremely corrosive atmosphere, copper PCBs will still form a strong, non-toxic passivation protective layer.

Advantages of thick copper PCB:

Thick copper PCBs are widely used in various household appliances, high-tech products, military, medical and other electronic equipment. The application of thicker copper PCB makes the core component of electronic equipment products-the circuit board has a longer service life, and is very helpful for reducing the size of electronic equipment.

 

Among PCB prototypes, thick copper PCB is a special technology, which has certain technical threshold and difficulty in operation, and is expensive. At present, in the PCB prototyping process, PCBWay can reach 2-6 layers (more than 6 layers, need to review), the maximum copper thickness is 10oz, and the minimum through hole is 0.4~0.6mm.