METHOD FOR PRODUCING NITRIDE SINGLE CRYSTAL AND AUTOCLAVE FOR USE IN THE METHOD

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United States of America Patent

APP PUB NO 20140205840A1
SERIAL NO

14128474

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Abstract

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There is provided a novel method for producing a nitride single crystal with both a rapid crystal growth rate and high crystal quality, as well as a novel autoclave that can be used in the method. The invention provides a method for producing a Ga-containing nitride single crystal by an ammonothermal method, comprising introducing at least a starting material, an acidic mineralizer and ammonia into an autoclave, and then growing a Ga-containing nitride single crystal under conditions wherein the temperature (T1) at the single crystal growth site is 600° C. to 850° C., the temperature (T1) at the single crystal growth site and the temperature (T2) at the starting material feeder site are in the relationship T1>T2, and the pressure in the autoclave is 40 MPa to 250 MPa, as well as an autoclave that can be used in the method.

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Patent Owner(s)

Patent OwnerAddress
ASAHI KASEI KABUSHIKI KAISHAOSAKA JAPAN OSAKA
TOHOKU UNIVERSITY1-1 KATAHIRA 2-CHOME AOBA-KU SENDAI-SHI MIYAGI 980-8577

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aoki, Kensuke Chiyoda-ku, JP 9 29
Fukuda, Tsuguo Sendai-shi, JP 51 573
Nakamura, Katsuhito Chiyoda-ku, JP 6 44
Yoshida, Kazuo Chiyoda-ku, JP 115 1409

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