What Are The Quality Standards For PCB Boards
1. Whether the surface of THE PCB is smooth and level, whether there are bump points or scratches.There is no leakage hole through hole, wrong hole or copper foil around the phenomenon of being drilled.
2. Integrity of wire graphics, cover the PCB circuit board with photographic film, and determine whether the width and shape of wire meet the requirements.There is no trachoma or broken line on the printed line, there is no jagged notch on the edge of the line, there is no short wire that should not be connected.
3. Whether the size of outer edge of PCB circuit board meets the requirements.
Ii. PCB board connectivity inspection standard
Multilayer PCB board needs to be tested for connectivity.A multimeter is usually used to check whether the PCB circuit board is connected.
Iii. PCB circuit board weldability inspection standard
Check the wetting ability of solder to PCB board graphics when soldering components to PCB board.