Invention Grant
- Patent Title: Protected through semiconductor via (TSV)
- Patent Title (中): 通过半导体通(TSV)保护
-
Application No.: US14678495Application Date: 2015-04-03
-
Publication No.: US09401323B1Publication Date: 2016-07-26
- Inventor: Mukta G. Farooq , Jennifer A. Oakley , Kevin S. Petrarca , Richard P. Volant
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Law Offices of Ira D. Blecker, P.C.
- Main IPC: H01L23/522
- IPC: H01L23/522 ; H01L23/528 ; H01L23/532 ; H01L21/768

Abstract:
A semiconductor structure having a through semiconductor via (TSV) which includes a semiconductor wafer of a semiconductor material and having a front side and a back side; front end of the line (FEOL) components; an insulative annulus extending from the front side to the back side, the insulative annulus having a center including the semiconductor material such that the semiconductor material in the center of the insulative annulus is recessed from the back side to form a recess; a metal filling the recess; a through silicon via (TSV) extending in a straight line from the metal-filled recess, through the center of the semiconductor material in the center of the insulative annulus and into the FEOL components such that there is semiconductor material between the TSV and the insulative annulus.
Information query
IPC分类: