Heat dissipation

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. Read More

This article introduces the design specifications and types of PCB shielding cases, focusing on material selection, heat dissipation design, batch soldering, maintenance methods, and cost considerations. Three main soldering forms are proposed: single piece soldering, detachable two-piece soldering, and shielding case clip + single shielding case. It emphasizes the importance of selecting the appropriate design scheme based on actual application scenarios. Read More