Invention Grant
- Patent Title: Stress compensation layer to improve device uniformity
- Patent Title (中): 应力补偿层,提高装置的均匀性
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Application No.: US13905438Application Date: 2013-05-30
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Publication No.: US09093528B2Publication Date: 2015-07-28
- Inventor: Yen-Ming Peng , Chen-Chung Lai , Kang-Min Kuo , Bor-Zen Tien
- 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: Eschweiler & Associates, LLC
- Main IPC: H01L29/78
- IPC: H01L29/78 ; H01L23/00 ; H01L23/498 ; H01L21/8234

Abstract:
The present disclosure relates to an integrated chip having one or more back-end-of-the-line (BEOL) stress compensation layers that reduce stress on one or more underlying semiconductor devices, and an associated method of formation. In some embodiments, the integrated chip has a semiconductor substrate with one or more semiconductor devices. A stressed element is located within a back-end-of-the-line stack at a position overlying the one or more semiconductor devices. A stressing layer is located over the stressed element induces a stress upon the stressed element. A stress compensation layer, located over the stressed element, provides a counter-stress to reduce the stress induced on the stressed element by the stressing layer. By reducing the stress induced on the stressed element, stress on the semiconductor substrate is reduced, improving uniformity of performance of the one or more semiconductor devices.
Public/Granted literature
- US20140353833A1 Stress Compensation Layer to Improve Device Uniformity Public/Granted day:2014-12-04
Information query
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