How to maintain PCBs assembled Surface-mount technology (SMT) is a method for constructing electronic circuits where components are directly mounted onto a PCB's surface using solder pads made of tin-lead, silver, or gold-plated copper. The connection between the PCB and components relies on the quality of these solder joints. The longevity of PCBA boards depends on proper maintenance. A Shenzhen-based PCB manufacturer recommends a semi-annual maintenance routine that includes cleaning dust with special fluid, drying the board, and checking components for overheating or leakage. Annual maintenance should include dust cleaning, testing electrolytic capacitor capacity, replacing old or damaged capacitors, and reapplying thermal grease to high-power devices to ensure effective heat dissipation and prolong the board's lifespan.
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