Invention Grant
- Patent Title: Semiconductor substrate, semiconductor device and manufacturing method of semiconductor substrate
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Application No.: US15201533Application Date: 2016-07-04
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Publication No.: US10249788B2Publication Date: 2019-04-02
- Inventor: Kai Cheng
- Applicant: ENKRIS SEMICONDUCTOR, INC.
- Applicant Address: CN Suzhou
- Assignee: ENKRIS SEMICONDUCTOR, INC.
- Current Assignee: ENKRIS SEMICONDUCTOR, INC.
- Current Assignee Address: CN Suzhou
- Agency: Flener IP & Business Law, LLC
- Agent Zareefa B. Flener
- Priority: CN201410006568 20140107
- Main IPC: H01L29/15
- IPC: H01L29/15 ; H01L29/20 ; H01L33/12 ; H01L21/20 ; H01L33/00 ; H01L33/18 ; H01L33/26 ; H01L21/18

Abstract:
A semiconductor substrate, a semiconductor device and a manufacturing method of the semiconductor substrate are provided. The semiconductor substrate comprises a first semiconductor layer and a second semiconductor layer located on the first semiconductor layer. The first semiconductor layer and the second semiconductor layer, as well as semiconductor layers obtained by symmetrically rotating the first semiconductor layer and the second semiconductor layer according to their respective lattice structures, have different cleavage planes in a vertical direction. By providing the semiconductor substrates having composite structures, even if thicknesses of the substrates are not changed, the damages to the semiconductor substrates due to stresses by the semiconductor epitaxial layers can be reduced, thereby decreasing the likelihood of breakage of the semiconductor substrates. Furthermore, the processing difficulty is reduced and the reliability of the semiconductor devices is improved.
Public/Granted literature
- US20160315220A1 SEMICONDUCTOR SUBSTRATE, SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR SUBSTRATE Public/Granted day:2016-10-27
Information query
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