Patent ID: 6294411
Filing Date: 2001-09-25
Classification: H01L,Y10T

Abstract:
A method of manufacturing a resin-encapsulated semiconductor device whose package is formed by covering a semiconductor chip with a resin, comprising:the first step of connecting a pad of said semiconductor chip mounted on a lead frame to an inner lead of said lead frame by a bonding wire;the second step of, using molds constituted by an upper mold having a mold cavity moving unit which can move upward/downward and a lower mold integrated with said upper mold to form an inner space, setting a portion of said semiconductor device including said semiconductor chip and said bonding wire in the inner space of said molds;the third step of moving said mold cavity moving unit downward to press an upper portion of said bonding wire, through direct contact such that said mold cavity moving unit regulates the height and movement of said bonding wire while said resin is inserted into the inner space of said molds, and then filling the inner space of said molds with said resin; andthe fourth step, performed after completing said third step, of returning said mold cavity moving unit to a surface position of said package and then filling a nonfilling space, formed by returning said mold cavity moving unit, with said resin.