Technology
PCB hole sealing
Seal the through-hole with a solder mask layer Seal the through-hole with a solder mask layer

Blocking through holes requires additional procedures. The through-hole can be blocked on one side or both sides. Sometimes, blocked through holes need to be coated with solder resist again.

advantage:

Extra fees are minimal

Almost 100% of the through holes are blocked

Helps prevent solder leakage in SMT process

Helps prevent dust or liquids during use

Disadvantages:

Not suitable for through-hole plugs in BGA area

  • What are the common types of through-hole plugsWhat are the common types of through-hole plugs
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  • Conductive hole plugConductive hole plug
  • Copper plated through-hole closureCopper plated through-hole closure
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