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Flexible printed circuit board having integrated circuit die or the like affixed thereto

  • US 4,677,528 A
  • Filed: 01/27/1986
  • Issued: 06/30/1987
  • Est. Priority Date: 05/31/1984
  • Status: Expired due to Term
First Claim
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1. A flexible circuit board assembly, suitable for insertion into a protective housing, said flexible circuit board assembly comprising in combination:

  • a first flexible layer having a printed circuit geometrical pattern;

    first and second integrated circuit dies bonded respectively to first and second areas of said first flexible layer, said dies being electrically connected to said printed circuit pattern;

    first and second intermediate layers each having an opening for respectively receiving said first and second dies, each of said intermediate layers having first and second surfaces wherein each of said first surfaces is bonded to said first flexible layer and each of said second surfaces respectively extends beyond said first and second dies, said first and second intermediate layers being separated by a gap; and

    first and second cover layers respectively bonded to said second surface of said first and second intermediate layers, thereby encapsulating said first and second dies;

    whereby said assembly can be folded along said gap and inserted into said protective cover.

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