PCB Design Tips: Why Perfboard is Not Suitable for Soldering
1 min
PCB Design Tips:
Perfboard should be made of immersion gold instead of HASL.
HASL is also called hot air leveling (HSAL). Its processing method is to immerse the board vertically down into the liquid tin liquid through the guide rail, then lift it up, and blow the flat surface with strong hot air. The residual tin liquid in the hole of the "board" flows out from the hole under the action of hot air, and part of it may stick to the adjacent pad, thus forming a short circuit failure. For this kind of "perforated board", it is recommended to use immersion gold surface technology to avoid such short circuit of HASL.
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