Rigid flex pcb manufacturers main items and methods of incoming inspection

The materials before the SMT assembly mainly include components, PCB, solder paste flux and other assembly process materials. The basic contents of rigid flex pcb manufacturers are component solderability, pin coplanarity, usage performance, PCB size and appearance, solder mask quality, warpage and distortion, solderability, solder mask integrity. The metal percentage, viscosity, powder oxidation amount of the solder paste, the amount of metal contamination of the solder, the activity and concentration of the flux, and the viscosity of the binder. Rigid flex pcb manufacturers have different detection methods for different inspection items.

Main items and basic testing methods for incoming inspection before assembly