发明名称 |
METHOD AND APPARATUS FOR MAKING SINGLE CRYSTAL |
摘要 |
<p>A method and apparatus for pulling up a single crystal from a molten material flowing into a second crucible through a through hole formed at its bottom, said second crucible being placed in a first crucible containing therein a molten material continuously prepared from a plurality of starting materials. A long single crystal can be obtained in one step of pulling up, because the single crystal is pulled up while the molten material is continuously prepared from the plurality of starting materials. Further it is possible to keep a good solid-liquid boundary state, because the single crystal is pulled up from the molten material in the second crucible. <IMAGE></p> |
申请公布号 |
EP0494312(B1) |
申请公布日期 |
1996.10.09 |
申请号 |
EP19910913100 |
申请日期 |
1991.07.24 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
MATSUMOTO, KAZUHISA;TATSUMI, MASAMI;KAWASE, TOMOHIRO |
分类号 |
C30B15/02;C30B15/10;C30B15/12;(IPC1-7):C30B15/12 |
主分类号 |
C30B15/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|