Key Processes in Printed Circuit Assembly The assembly process starts with the application of solder paste to the PCB using a stencil, which ensures proper adhesion of components during soldering. Components are then precisely placed onto the PCB by automated machines, aligning them with the solder paste. Reflow soldering is employed to melt the solder paste and form secure bonds between the components and the PCB, a crucial step for Surface Mount Technology (SMT). After assembly, PCBs undergo thorough inspection and testing, utilizing methods like Automated Optical Inspection (AOI) and X-ray inspection to verify functionality and reliability. The process concludes with the final assembly, where the PCBs are integrated into the final product, potentially involving further assembly tasks such as housing and wiring.
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