Internal Cavities


Internal Cavity PCBs require an intentional void among internal layers so that a specific area is not in contact with prepreg.


Applications that require portion of inner layer to be open for component assembly and air retention span a wide range of industries:

  • Microwave
  • Military
  • Telecommunications
  • Natural Gas Detection

Fabrication Issues

We have resolved the following fabrication issues for internal cavities:

  • Registration
  • Bleed out of bonding material into cavity
  • Shallow cavity routing
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Sample Boards

Internal Cavity Blind NPTH Via
Mouse over pictures below to see description


Sample Internal Cavity Boards

About Us

Domestic PCB Fabricator

Bare printed circuit board manufacturer (NAICS: 334412)
Romulus, MI (since 1985)
(734) 941-8100

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