PCB
Blind and buried holes
How to identify blind holes and buried holes from PCB Gerber files?

A simple method is that when you find two or more drilling files in the data, they may have blind buried holes. For example, the Gerber file of a 4-layer PCB has multiple drilling files: TXT1, TXT2, TXT3, TXT4, drl1-2, drl3-4, drl1-4, etc. This board has blind buried holes.


  • Why do blind holes and buried holes appear?Why do blind holes and buried holes appear?
  • When do blind holes and buried holes appear?When do blind holes and buried holes appear?
  • What is a buried hole?What is a buried hole?
  • What is blind hole?What is blind hole?
  • What is the difference between blind holes and buried holes?What is the difference between blind holes and buried holes?
  • The benefits of blind holes and buried holesThe benefits of blind holes and buried holes
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