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Method of manufacturing an identification card and an identification manufactured, for example, by this method

  • US 4,483,067 A
  • Filed: 09/10/1982
  • Issued: 11/20/1984
  • Est. Priority Date: 09/11/1981
  • Status: Expired due to Fees
First Claim
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1. A method of manufacturing an identification card in which an integrated semiconductor circuit is brought into electrical contact on both sides with conductor patterns on at least one side of a secondary carrier which is subsequently mounted, together with the integrated circuit, in a primary carrier, the integrated circuit being enclosed by a quantity of electrically insulating material which fills a recess in one of said carriers, comprising the steps of:

  • providing the secondary carrier (11) which comprises a conductor pattern (3,

         5) on both sides with at least one plated-through hole (7);

    providing a recess (15) subsequently at the area of said hole (7) in the secondary carrier (11);

    said recess (15) opening into the part (17) of the plated-through hole (7) which remains after the formation of the recess (15);

    arranging the integrated circuit (13) subsequently in the recess (15) and connecting it on one side, by means of an electrically conductive bonding medium (21) and the metal hole plating (18), to the conductor pattern (5) on one side of the secondary carrier (11), and connecting its other sidesubsequently to the conductor pattern (3) on the other side of the secondary carrier (11).

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