Title:
EPITAXIAL WAFER, AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2024/075430
Kind Code:
A1
Abstract:
Provided is a method for producing an epitaxial wafer, the method comprising: a step for exposing a substrate 10 comprising a β-Ga2O3-based single crystal and containing a donor impurity to a GaCl gas and an O2 gas to allow an epitaxial film 12 comprising the β-Ga2O3-based single crystal to grow on a main surface 11 of the substrate 10 by an HVPE method, thereby forming an epitaxial wafer 1; and a step for subjecting the epitaxial wafer 1 to an annealing treatment at a temperature of 1200°C or higher under a nitrogen atmosphere.
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Inventors:
LIN CHIA-HUNG (JP)
SASAKI KOHEI (JP)
SASAKI KOHEI (JP)
Application Number:
PCT/JP2023/030992
Publication Date:
April 11, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
NOVEL CRYSTAL TECH INC (JP)
International Classes:
C30B29/16; C30B33/02; H01L21/20; H01L21/365
Foreign References:
JP2014210707A | 2014-11-13 | |||
JP2015091740A | 2015-05-14 | |||
JP2016039194A | 2016-03-22 | |||
JP2013058636A | 2013-03-28 | |||
CN109056058A | 2018-12-21 |
Attorney, Agent or Firm:
HIRATA & PARTNERS (JP)
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