Invention Application
US20150225872A1 SINGLE CRYSTAL PRODUCTION APPARATUS, CRUCIBLE FOR USE THEREIN, AND METHOD OF PRODUCING SINGLE CRYSTAL
审中-公开
单晶生产设备，可用于其的单晶生产设备及单晶生产方法
- Patent Title: SINGLE CRYSTAL PRODUCTION APPARATUS, CRUCIBLE FOR USE THEREIN, AND METHOD OF PRODUCING SINGLE CRYSTAL
- Patent Title (中): 单晶生产设备，可用于其的单晶生产设备及单晶生产方法
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Application No.: US14424578Application Date: 2013-08-30
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Publication No.: US20150225872A1Publication Date: 2015-08-13
- Inventor: Kazuhito Kamei , Kazuhiko Kusunoki , Nobuyoshi Yashiro , Nobuhiro Okada , Koji Moriguchi , Hironori Daikoku , Motohisa Kado , Hidemitsu Sakamoto
- Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Aichi
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Aichi
- Priority: JP2012-194250 20120904
- International Application: PCT/JP2013/005131 WO 20130830
- Main IPC: C30B19/10
- IPC: C30B19/10 ; C30B29/36 ; C30B19/12 ; C30B19/04 ; C30B19/06
Abstract:
The production apparatus is used in production of single crystals by solution growth techniques. The production apparatus includes a seed shaft, a crucible, and a drive source. The seed shaft has a lower end surface to which a seed crystal is to be attached. The crucible contains a solution from which a single crystal is made. The drive source causes the crucible to rotate, and also varies the rotational speed of the crucible. The inner peripheral surface of the crucible includes a flow control surface which defines a non-circular cross-sectional shape. This single crystal production apparatus is capable of strongly stirring the solution contained in the crucible.
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