Common problems in PCB Design (1)

Common problems in PCB Design (1)


Pad overlap

1. pads (except surface welded plate) overlap that means hole overlap ,in the drilling process because many drilling in a drill hole lead to broken, causing damage.

2, Two holes in the multilayer board overlap, such as one hole position is the isolating disk, the other hole position is the connection disc (the flower welding pad), so that the negative is painted as the isolation disk, resulting in the scrapping of the board.