Flying probe testing machine, PCB open and short test machine. Electrical test

For small orders, we use flying probe testing machine to test open and short of pcb, E-Test is very critical for PCB, expecially for these with fine lines and small holes.

This is the only way for any PCB manufacturer to ensure the PCB board shipped have zero shorts or opens. Visual inspection can never be 100% effective. Especially, if the defect is under the solder mask or in the vias, electrical test is the only way to make sure the quality.