发明名称 |
CRUCIBLE AND SINGLE CRYSTAL GROWTH METHOD USING CRUCIBLE |
摘要 |
Provided are a crucible which prevents polycrystal formation to easily allow growth of optical part material single crystals, and a single crystal growth method employing the crucible. The crucible has a smooth surface of about Rmax 3.2 s as the surface roughness of the wall surface 1 H, concave curved plane 1 J, cone surface 1 F and convex curved plane 1 L of the starting material carrying section 1 D and the wall surface 1 K of the seed carrying section 1 E, which constitute the inner surface of the crucible of a crucible body 1 A.
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申请公布号 |
US2008173234(A1) |
申请公布日期 |
2008.07.24 |
申请号 |
US20080968916 |
申请日期 |
2008.01.03 |
申请人 |
SUMIYA KEIJI;SENGUTTUVAN NACHIMUTHU;ISHIBASHI HIROYUKI |
发明人 |
SUMIYA KEIJI;SENGUTTUVAN NACHIMUTHU;ISHIBASHI HIROYUKI |
分类号 |
C30B35/00;C30B11/00;C30B29/12 |
主分类号 |
C30B35/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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