Title:
CRYSTAL GROWTH OF M-PLANE AND SEMIPOLAR PLANES OF(AI, IN, GA, B)N ON VARIOUS SUBSTRATES
Document Type and Number:
WIPO Patent Application WO2008073414
Kind Code:
A8
Abstract:
A method of reducing threading dislocation densities in non-polar such as a-{11-20} plane and m-{1-100} plane or semi-polar such as {10-1n} plane III-Nitrides by employing lateral epitaxial overgrowth from sidewalls of etched template material through a patterned mask. The method includes depositing a patterned mask on a template material such as a non-polar or semi polar GaN template, etching the template material down to various depths through openings in the mask, and growing non-polar or semi-polar III-Nitride by coalescing laterally from the tops of the sidewalls before the vertically growing material from the trench bottoms reaches the tops of the sidewalls. The coalesced features grow through the openings of the mask, and grow laterally over the dielectric mask until a fully coalesced continuous film is achieved.
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Inventors:
KIM KWANG CHOONG (KR)
SCHMIDT MATHEW C (US)
WU FENG (US)
HIRAI ASAKO (US)
MCLAURIN MELVIN B (US)
DENBAARS STEVEN P (US)
NAKAMURA SHUJI (US)
SPECK JAMES S (US)
SCHMIDT MATHEW C (US)
WU FENG (US)
HIRAI ASAKO (US)
MCLAURIN MELVIN B (US)
DENBAARS STEVEN P (US)
NAKAMURA SHUJI (US)
SPECK JAMES S (US)
Application Number:
PCT/US2007/025302
Publication Date:
September 04, 2008
Filing Date:
December 11, 2007
Export Citation:
Assignee:
UNIV CALIFORNIA (US)
KIM KWANG CHOONG (KR)
SCHMIDT MATHEW C (US)
WU FENG (US)
HIRAI ASAKO (US)
MCLAURIN MELVIN B (US)
DENBAARS STEVEN P (US)
NAKAMURA SHUJI (US)
SPECK JAMES S (US)
KIM KWANG CHOONG (KR)
SCHMIDT MATHEW C (US)
WU FENG (US)
HIRAI ASAKO (US)
MCLAURIN MELVIN B (US)
DENBAARS STEVEN P (US)
NAKAMURA SHUJI (US)
SPECK JAMES S (US)
International Classes:
H01L21/00; H01L33/00
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