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Patent Searching and Data


Title:
METHOD OF PREPARING SINGLE CRYSTAL SUBSTRATE, SINGLE CRYSTAL SUBSTRATE PREPARED THEREBY, LIGHT-EMITTING DEVICE INCLUDING SAID SINGLE CRYSTAL SUBSTRATE AND METHOD OF PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2010/036002
Kind Code:
A3
Abstract:
A method for preparing a single crystal substrate, a single crystal substrate prepared thereby, and a light-emitting device including a single crystal substrate and its preparation method are disclosed. The method for preparing a single crystal substrate comprises a step wherein a lower epitaxial layer is grown on a base substrate, a step wherein at least a part of an electric potential region in the lower epitaxial layer is optionally removed, a step wherein an electric potential prevention element is formed in the electric potential region that has been removed, and a step wherein an upper epitaxial layer is formed on the lower epitaxial layer on which the electric potential prevention element has been formed.

Inventors:
PARK TAE-YOUNG (KR)
PARK SEONG-JU (KR)
Application Number:
KR2009/005384
Publication Date:
July 08, 2010
Filing Date:
September 22, 2009
Export Citation:
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Assignee:
KWANGJU INST SCI & TECH (KR)
PARK TAE-YOUNG (KR)
PARK SEONG-JU (KR)
International Classes:
H01L33/12
Foreign References:
JP2001326384A2001-11-22
US20020192959A12002-12-19
JP2003243702A2003-08-29
Attorney, Agent or Firm:
E-SANG PATENT & TRADEMARK LAW FIRM (3F. Woodo Bldg, 82-2Yangjae-dong, Seocho-gu, Seoul 137-890, 137-890, KR)
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