Patent ID: 6518649
Filing Date: 2003-02-11
Classification: H01L,H05K

Abstract:
A tape carrier type semiconductor device, comprising:a semiconductor chip having connecting bumps formed on the obverse side thereof; a tape carrier comprising a tape substrate and an interconnect pattern, including connecting inner leads, formed on the tape substrate, the obverse side of the semiconductor chip being totally covered by the tape substrate while the bumps and the inner leads are bonded to each other, wherein the bumps comprise gold and the inner leads are gold plated so that the bumps comprising gold and the inner leads are thermally compression-bonded to each other and the inner leads penetrate into the corresponding bumps comprising gold to create bonding, and wherein portions of the inner leads which are bonded to and penetrate into the bumps comprising gold have a width of from 10 to 35 &mgr;m.