Patent ID: 6791182
Filing Date: 2004-09-14
Classification: H01L

Abstract:
A semiconductor device comprising:a semiconductor chip; a plurality of inner leads which are comprised of copper or copper alloy and extend around the semiconductor chip; a heat radiation plate which joins to one ends of the plurality of inner leads via an insulative adhesive layer and on which the semiconductor chip is mounted via the adhesive layer or an adhesive different from the adhesive layer; a plurality of metallic fine wires which connect between the semiconductor chip and the plurality of inner leads respectively; and a molding resin which molds the semiconductor chip, the plurality of metallic fine wires and the heat radiation plate, wherein the inner leads are selectively covered by a metal having a higher reference electrode potential than that of copper such that portions of the inner leads which join with the adhesive layer are covered by said metal and other portions of the inner leads which are not joined with the adhesive layer are not covered with said metal.