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Davis Zhang
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Saratoga, CA, US
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last 30 patents
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Patent Grant
IIIA-VA group semiconductor single crystal substrate and method for...
Patent number
9,691,617
Issue date
Jun 27, 2017
Beijing Tongmei Xtal Technology Co., Ltd.
Morris Young
C30 - CRYSTAL GROWTH
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last 30 patents
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Patent Application
CONTROLLABLE OXYGEN CONCENTRATION IN SEMICONDUCTOR SUBSTRATE
Publication number
20160053404
Publication date
Feb 25, 2016
BEIJING TONGMEI XTAL TECHNOLOGY CO., LTD.
Morris YOUNG
C30 - CRYSTAL GROWTH
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Patent Application
IIIA-VA GROUP SEMICONDUCTOR SINGLE CRYSTAL SUBSTRATE AND METHOD FOR...
Publication number
20150279678
Publication date
Oct 1, 2015
BEIJING TONGMEI XTAL TECHNOLOGY CO., LTD.
Morris Young
H01 - BASIC ELECTRIC ELEMENTS
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Patent Application
Apparatus and method for reducing impurities in a semiconductor mat...
Publication number
20040173315
Publication date
Sep 9, 2004
Charles Leung
C30 - CRYSTAL GROWTH