Patent ID: 6664136
Filing Date: 2003-12-16
Classification: H01L

Abstract:
A method of manufacturing a semiconductor device comprising:preparing a copper series lead frame including a die pad and a plurality of leads disposed so that inner ends of said leads are positioned along the periphery of said die pad; applying a non-benzotriazole series rustproof agent over the surface of sad lead frame; executing die-bonding for fixing a semiconductor chip onto said die pad in a heating atmospheric air by use of a non-metal series paste; executing wire-bonding for connecting said electrodes on said semiconductor chip to the inner ends of said leads of said lead frame by use of copper wires; forming a resin molded member by sealing said leads with some portions excluded with a resin; forming leads protruding from said resin molded member; and applying a water soluble rustproof agent over said leads protruded from said resin molded member.