Invention Grant
- Patent Title: 3D integrated circuit structure and method for manufacturing the same
- Patent Title (中): 3D集成电路结构及其制造方法
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Application No.: US13380022Application Date: 2011-02-22
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Publication No.: US08796852B2Publication Date: 2014-08-05
- Inventor: Huilong Zhu
- Applicant: Huilong Zhu
- Applicant Address: CN Beijing
- Assignee: Institute of Microelectronics, Chinese Academy of Sciences
- Current Assignee: Institute of Microelectronics, Chinese Academy of Sciences
- Current Assignee Address: CN Beijing
- Agency: Goodwin Procter LLP
- Priority: CN201010502039 20100930
- International Application: PCT/CN2011/071166 WO 20110222
- International Announcement: WO2012/041034 WO 20120405
- Main IPC: H01L23/48
- IPC: H01L23/48 ; H01L21/768 ; H01L25/065 ; H01L23/00

Abstract:
A 3D integrated circuit structure comprises a first chip, wherein the first chip comprises: a substrate; a semiconductor device formed on the substrate and a dielectric layer formed on both the substrate and the semiconductor device; a conductive material layer formed within a through hole penetrating through both the substrate and the dielectric layer; a stress releasing layer surrounding the through hole; and a first interconnecting structure connecting the conductive material layer with the semiconductor device. By forming a stress releasing layer to partially release the stress caused by the conductive material in the via, the stress caused by mismatch of CTE between the conductive material and the semiconductor (for example, silicon) surrounding it can be reduced, thereby enhancing the performance of the semiconductor device and the corresponding 3D integrated circuit consisting of the semiconductor devices.
Public/Granted literature
- US20120193797A1 3D INTEGRATED CIRCUIT STRUCTURE AND METHOD FOR MANUFACTURING THE SAME Public/Granted day:2012-08-02
Information query
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