发明名称 Semiconductor device having a bonding pad structure including an annular contact
摘要 A bonding pad structure in a semiconductor device includes a contact pad connected to an interconnect, a bonding pad overlying the contact pad with an intervention of an insulating film and exposed from an opening of a passivation film, and an annular contact disposed between the contact pad and the bonding pad for electric connection therebetween. The annular contact encircles the opening as viewed normal to the substrate surface.
申请公布号 US2006125118(A1) 申请公布日期 2006.06.15
申请号 US20050285057 申请日期 2005.11.23
申请人 ELPIDA MEMORY, INC. 发明人 YAMAZAKI YASUSHI
分类号 H01L23/52;H01L23/48 主分类号 H01L23/52
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