发明名称 Expanded pad structure
摘要 A pad for connecting electrical chips in microelectronic circuits includes a bump built up on the connecting pad that had a dimension of the base that is less than that of the pad to prevent the bump from overlapping the edges of the pad and damaging or cracking the underlying structure of the chip during thermocompression bonding of leads to the bump.
申请公布号 US4258382(A) 申请公布日期 1981.03.24
申请号 US19780921493 申请日期 1978.07.03
申请人 NATIONAL SEMICONDUCTOR CORPORATION 发明人 HARRIS, JAMES M.
分类号 H01L21/603;H01L23/485;(IPC1-7):H01L23/48 主分类号 H01L21/603
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