Invention Grant
- Patent Title: Wafer bow reduction
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Application No.: US15649733Application Date: 2017-07-14
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Publication No.: US10714338B2Publication Date: 2020-07-14
- Inventor: Peter Ward
- Applicant: Anvil Semiconductors Limited
- Applicant Address: GB Warwickshire
- Assignee: ANVIL SEMICONDUCTORS LIMITED
- Current Assignee: ANVIL SEMICONDUCTORS LIMITED
- Current Assignee Address: GB Warwickshire
- Agency: Tarolli, Sundheim, Covell & Tummino LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1ab07af
- Main IPC: C30B25/18
- IPC: C30B25/18 ; H01L21/02 ; H01L29/739 ; H01L29/16 ; H01L29/66 ; H01L29/08 ; C30B25/02 ; C30B29/06 ; C30B29/36 ; H01L29/34 ; H01L29/78 ; H01L29/861

Abstract:
We describe a method for reducing bow in a composite wafer comprising a silicon wafer and a silicon carbide layer grown on the silicon wafer. The method includes applying nitrogen atoms during the growth process of the silicon carbide layer on the silicon wafer so as to generate a compressive stress within the composite wafer.
Public/Granted literature
- US20170323790A1 WAFER BOW REDUCTION Public/Granted day:2017-11-09
Information query
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