Invention Grant
- Patent Title: Composite substrate for light-emitting element and production method therefor
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Application No.: US15182741Application Date: 2016-06-15
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Publication No.: US09893234B2Publication Date: 2018-02-13
- Inventor: Morimichi Watanabe , Jun Yoshikawa , Tsutomu Nanataki , Katsuhiro Imai , Tomohiko Sugiyama , Takashi Yoshino , Yukihisa Takeuchi , Kei Sato
- Applicant: NGK INSULATORS, LTD.
- Applicant Address: JP Nagoya
- Assignee: NGK Insulators, Ltd.
- Current Assignee: NGK Insulators, Ltd.
- Current Assignee Address: JP Nagoya
- Agency: Burr & Brown, PLLC
- Priority: JP2013-260856 20131218; JP2014-071231 20140331; JP2014-112014 20140530; JP2014-199193 20140929
- Main IPC: H01L29/06
- IPC: H01L29/06 ; H01L33/16 ; C30B9/10 ; C30B19/02 ; C30B25/18 ; C30B29/40 ; H01L21/02 ; H01L33/06 ; H01L33/32 ; H01L33/00
Abstract:
Provided is a light emitting device composite substrate suitable for manufacturing large-area light emitting devices at low cost. The light emitting device composite substrate comprises a substrate composed of an oriented polycrystalline alumina sintered body, and a light emitting functional layer formed on the substrate and having two or more layers composed of semiconductor single crystal grains, wherein each of the two or more layers has a single crystal structure in a direction approximately normal to the substrate.
Public/Granted literature
- US20160293800A1 COMPOSITE SUBSTRATE FOR LIGHT-EMITTING ELEMENT AND PRODUCTION METHOD THEREFOR Public/Granted day:2016-10-06
Information query
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