发明名称 GEOMETRY FOR A PNP SILICON TRANSISTOR WITH OVERLAY CONTACTS
摘要 A semiconductor device having an expanded guard ring overlying substantially the entire surface of a region except for at least one island therein. A relatively thin protective coating overlies the guard ring and a relatively thick protective coating overlies the island. A terminal connector contact for a wire-bonded or flip-chip device formed on the relatively thick island portion of the protective coating, which is more suitable for withstanding bonding pressure. One form of this device includes a PNP transistor having an expanded P+ guard ring overlying a substantial portion of the collector surface noncontiguously closely surrounding the base region of the transistor. Islands of original P-type material having a relatively thick oxide coating thereon are left within the expanded P+ guard ring to support wire-bonding or flip-chip contact pads.
申请公布号 US3697828(A) 申请公布日期 1972.10.10
申请号 USD3697828 申请日期 1970.12.03
申请人 GENERAL MOTORS CORP. 发明人 JAMES A. OAKES
分类号 H01L21/60;H01L23/482;H01L29/00;(IPC1-7):H01L5/06 主分类号 H01L21/60
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