Invention Grant
- Patent Title: Structure and formation method of damascene structure
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Application No.: US15171893Application Date: 2016-06-02
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Publication No.: US09721836B2Publication Date: 2017-08-01
- Inventor: Tai-Yen Peng , Chia-Tien Wu , Jye-Yen Cheng
- Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Applicant Address: TW Hsin-Chu
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
- Current Assignee Address: TW Hsin-Chu
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Main IPC: H01L23/532
- IPC: H01L23/532 ; H01L21/768 ; H01L23/528 ; H01L23/522

Abstract:
A structure and a formation method of a semiconductor device are provided. The semiconductor device includes a semiconductor substrate and a first conductive feature over the semiconductor substrate. The semiconductor device also includes a first dielectric layer over the semiconductor substrate and surrounding the first conductive feature. The semiconductor device further includes a second conductive feature over the first conductive feature, and the second conductive feature extends into the first conductive feature. In addition, the semiconductor device includes a second dielectric layer over the first dielectric layer and surrounding the second conductive feature. The semiconductor device also includes an etch stop layer between the first dielectric layer and the second dielectric layer. The etch stop layer surrounds the first conductive feature, and a bottom surface of the second conductive feature is above the etch stop layer.
Public/Granted literature
- US20160276221A1 STRUCTURE AND FORMATION METHOD OF DAMASCENE STRUCTURE Public/Granted day:2016-09-22
Information query
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