Invention Grant
- Patent Title: Semiconductor structure having offset passivation to reduce electromigration
- Patent Title (中): 具有偏移钝化以减少电迁移的半导体结构
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Application No.: US13111283Application Date: 2011-05-19
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Publication No.: US08487447B2Publication Date: 2013-07-16
- Inventor: Mario J. Interrante , Gary LaFontant , Michael J. Shapiro , Thomas A. Wassick , Bucknell C. Webb
- Applicant: Mario J. Interrante , Gary LaFontant , Michael J. Shapiro , Thomas A. Wassick , Bucknell C. Webb
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Ira D. Blecker; Katherine S. Brown
- Main IPC: H01L23/48
- IPC: H01L23/48 ; H01L23/52 ; H01L29/40

Abstract:
A semiconductor structure which includes a plurality of stacked semiconductor chips in a three dimensional configuration. There is a first semiconductor chip in contact with a second semiconductor chip. The first semiconductor chip includes a through silicon via (TSV) extending through the first semiconductor chip; an electrically conducting pad at a surface of the first semiconductor chip, the TSV terminating in contact at a first side of the electrically conducting pad; a passivation layer covering the electrically conducting pad, the passivation layer having a plurality of openings; and a plurality of electrically conducting structures formed in the plurality of openings and in contact with a second side of the electrically conducting pad, the contact of the plurality of electrically conducting structures with the electrically conducting pad being offset with respect to the contact of the TSV with the electrically conducting pad.
Public/Granted literature
- US20120292779A1 SEMICONDUCTOR STRUCTURE HAVING OFFSET PASSIVATION TO REDUCE ELECTROMIGRATION Public/Granted day:2012-11-22
Information query
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