发明名称 Vitreous silica crucible and method of manufacturing silicon ingot
摘要 The present invention provides a vitreous silica crucible which can suppress buckling and sidewall lowering of the crucible in multi-pulling. According to the present invention, provided is a vitreous silica crucible for pulling a silicon single crystal, comprising a mineralizer on an inner surface of the crucible, wherein the mineralizer contains at least one atoms selected from the group consisting of Ca, Sr, Ba, Ra, Ti, Zr, Cr, Mo, Fe, Co, Ni, Cu, and Ag, and the concentration of the mineralizer on the inner surface is 1.0×10 5 to 1.0×10 17 atoms/cm 2 .
申请公布号 EP2410080(A1) 申请公布日期 2012.01.25
申请号 EP20110172874 申请日期 2011.07.06
申请人 JAPAN SUPER QUARTZ CORPORATION 发明人 SUDO, TOSHIAKI;KISHI, HIROSHI
分类号 C30B15/10 主分类号 C30B15/10
代理机构 代理人
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