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Flexible printed circuits and methods of fabricating and forming plated thru-holes therein

  • US 4,715,928 A
  • Filed: 09/19/1986
  • Issued: 12/29/1987
  • Est. Priority Date: 09/27/1985
  • Status: Expired due to Fees
First Claim
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1. A method of making flexible printed circuits comprising the steps of(a) providing a sheet of metal,(b) covering at least a first area of the metal sheet with a sheet of flexible material,(c) covering a second area of the metal sheet at least in part coterminous with the first area with a rigid printed circuit board material,(d) bonding the flexible material and the rigid material to the metal sheet,(e) etching the metal sheet to form a circuit pattern and(f) bonding additional flexible material and rigid printed circuit board to the flexible material and rigid printed circuit board material, respectfully, of steps (b) and (c) to sandwich the circuit pattern formed in step (e) therebetween.

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