When engineers design new print circuit boards or have some small modifications, normally we test the boards. Prototype PCB assembly is most favorable.
How do ensure that boards have no bigger mistakes for PCB assembly production? It's necessary to prototype PCB assembly to verify/test your boards.
Analyzing printed circuit board data and optimizing printed circuit board layout can save the total cost of mass production.
PCB assembly=PCB+Components+assembly
PCB SMT assembly process is as below step by step.
Stencil fabrication
Incoming inspection
Components baking
Components feeding
Auto-Loading
Solder Paste printing
SPI
Pick&place
Inspection before reflow
Reflow Soldering
AOI
SMT QA
DIP (through-hole PCB assembly)
Wave soldering
Hand soldering
Cosmetic Inspection
100%test PCB assembly inspection
Functional test ( as customer's request)
Packing &Shipment