Knowledge

Thick copper PCB is a high-performance PCB that is widely used in high-power electronic devices due to its unique performance and characteristics.

1、 Good thermal conductivity
The copper layer thickness of thick copper PCBs is relatively large, usually reaching 10oz in the inner layer and 6oz in the outer layer, which is much thicker than the 1oz thickness of conventional PCBs. The increase in copper layer thickness significantly improves the thermal conductivity of the PCB board, reduces line resistance, lowers component temperature, and thus improves the reliability, stability, and lifespan of the circuit.

2、 Excellent current carrying capacity
The increase in the thickness of the inner and outer layers of the thick copper plate PCB effectively increases the conductive area of the circuit and improves its ability to carry current. In addition, the thick copper PCB also uses distributed inductance technology and blind buried hole technology, greatly reducing the self inductance of the current and enabling it to withstand higher currents. Therefore, in the design of high-power electronic devices, thick copper plate PCBs have unique advantages.

3、 Excellent corrosion resistance

The copper layer of thick copper PCB not only has a large thickness, but also uses pure copper material. This material can effectively improve the corrosion resistance of PCB boards and extend their service life. In addition, in terms of sputtering etching technology for copper layers, the process of thick copper PCB has been highly mature, which can effectively avoid circuit problems caused by uneven etching.

4、 Better mechanical performance
Due to the thicker copper layer of thick copper PCB, the thickness of the entire board is also larger. Therefore, the PCB has better mechanical strength and stiffness, which can better protect circuits in complex physical environments. At the same time, thick copper PCBs can also be stacked in multiple layers according to practical applications, making the overall structure more compact and sturdy.

With the continuous development of electronic products, thick copper PCBs will have more and more widespread applications.