
基本信息:
- 专利标题: β-Ga2O3系基板的制造方法和结晶层叠结构体的制造方法
- 申请号:CN201280050469.5 申请日:2012-10-12
- 公开(公告)号:CN103917700B 公开(公告)日:2020-05-22
- 发明人: 增井建和 , 山冈优
- 申请人: 株式会社田村制作所 , 株式会社光波
- 申请人地址: 日本东京都
- 专利权人: 株式会社田村制作所,株式会社光波
- 当前专利权人: 株式会社田村制作所
- 当前专利权人地址: 日本东京都
- 代理机构: 北京市隆安律师事务所
- 代理人: 徐谦
- 优先权: 2011-226554 2011.10.14 JP
- 国际申请: PCT/JP2012/076523 2012.10.12
- 国际公布: WO2013/054919 JA 2013.04.18
- 进入国家日期: 2014-04-14
- 主分类号: C30B29/16
- IPC分类号: C30B29/16 ; C30B33/02 ; H01L21/20
Provided are: a method for producing a ²-Ga 2 O 3 substrate of which changes in donor concentration in a reducing atmosphere or an inert gas atmosphere are suppressed; and a method for producing a crystal laminate structure that can epitaxially grow a high-quality crystal film having low variability of quality in a reducing atmosphere or an inert gas atmosphere. The method for producing a ²-Ga 2 O 3 substrate includes a step for cutting out a ²-Ga 2 O 3 substrate from a ²-Ga 2 O 3 crystal containing a group IV element; annealing processing in an atmosphere containing a reducing atmosphere and/or an inert gas atmosphere is performed on the ²-Ga 2 O 3 crystal before cutting out the ²-Ga 2 O 3 substrate, or on the cut-out ²-Ga 2 O 3 substrate.
公开/授权文献:
- CN103917700A β-Ga2O3系基板的制造方法和结晶层叠结构体的制造方法 公开/授权日:2014-07-09