A kind of cover plate of PCB back drill

A kind of cover plate of PCB back drill

CN
  • CN 204,414,730 U
  • Filed: 12/30/2014
  • Issued: 06/24/2015
  • Est. Priority Date: 12/30/2014
  • Status: Active Grant
First Claim
Patent Images

1. the cover plate of a PCB back drill, for PCB back drill Drilling operation, it is characterized in that, the cover plate of described PCB back drill comprises phenolic resins insulating medium layer and the aluminium foil suppressed in phenolic resins insulating medium layer lower surface of fitting, and described phenolic resins insulating medium layer comprises individual or multiple prepregs of fitting.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×