Invention Grant
- Patent Title: Stress release structures for metal electrodes of semiconductor devices
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Application No.: US12802152Application Date: 2010-06-01
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Publication No.: US08759877B2Publication Date: 2014-06-24
- Inventor: Ishiang Shih , Cindy Xing Qiu , Chunong Qiu , Yi-Chi Shih
- Applicant: Ishiang Shih , Cindy Xing Qiu , Chunong Qiu , Yi-Chi Shih
- Main IPC: H01L29/66
- IPC: H01L29/66 ; H01L29/20 ; H01L29/778

Abstract:
This invention teaches stress release metal electrodes for gate, drain and source in a field effect transistor and stress release metal electrodes for emitter, base and collector in a bipolar transistor. Due to the large difference in the thermal expansion coefficients between semiconductor materials and metal electrodes, significant strain and stresses can be induced in the devices during the fabrication and operation. The present invention provides metal electrode with stress release structures to reduce the strain and stresses in these devices.
Public/Granted literature
- US20110291159A1 Stress release structures for metal electrodes of semiconductor devices Public/Granted day:2011-12-01
Information query
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