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Heat sink, EMI shield and controller module assembly for a portable radio transceiver

  • US 4,717,989 A
  • Filed: 03/30/1987
  • Issued: 01/05/1988
  • Est. Priority Date: 03/30/1987
  • Status: Expired due to Fees
First Claim
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1. A module for a portable radio, said module comprising in combination:

  • an electrically conductive cover plate having inside and outside surfaces;

    a thermally and electrically conductive module base having a recess sized and shaped to receive said cover plate, said recess including a ledge for supporting said cover plate above the floor of said module recess, said cover plate being attached and electrically connected to said module base over said recess;

    a flexible circuit including a substrate layer having first and second electrical circuit patterns on opposite sides of said substrate layer, a cover layer adhesively bonded over said first electrical circuit pattern, and a solder resist layer over a portion of said second electrical circuit pattern, said flexible circuit being attached to the inside surface of said cover plate;

    whereby said flexible circuit is electromagnetically shielded by said module base and cover plate.

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