1. Open the PCB design drawing on the computer, light up the short-circuited network, and see where is the closest, the easiest to connect to. Pay […]

Copper pour is to use the unused space on the PCB as a reference surface and then fill it with solid copper. These copper areas are […]

B. Decontamination and Copper Sinking Purpose: Metallize the through hole 1. The substrate of the circuit board is composed of copper foil, glass fiber, and epoxy […]

The purpose of blackening and browning: A. Remove contaminants such as oil and impurities on the surface. B. Enlarge the surface of the copper foil, thereby […]