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2020-12-22
With the rapid development of electronic products, PCB printing has been expanded from single-layer to double-layer and high-precision multi-layer boards. Therefore, the circuit board hole processing […]
2020-12-20
Different reasons will cause copper come off from flexible PCB, here we analyze this phenomenon from manifacturing process and raw material aspect: Manufacturing […]
2020-12-19
Copper fall off is a common problem in PCB fabrication. Let’s see the below reasons to learn more about it. 1. The copper foil is […]
2020-12-18
There are two different selective welding processes: drag welding and dip welding. The selective towing process is performed on a single small nozzle solder wave. […]
