Silica glass crucible and its manufacturing method

专利名称：Silica glass crucible and its manufacturing

method

发明人：岸 弘史,長谷部 幸太,安部 貴裕,藤原 秀樹,北原 江

梨子

申请号：JP2019516369申请日：20180402

公开号：JPWO2018203454A1公开日：20191121

专利附图：

摘要：Problem to be solved: to provide a quartz glass crucible capable ofwithstanding a very long single crystal pulling step such as multi pulling, and amanufacturing method thereof. Solution: the quartz glass crucible 1 is formed of acrucible body 10 having a bottomed cylindrical shape made of quartz glass and a cruciblebody 10 so as to form a crystallization accelerating layer in the vicinity of the surface ofthe crucible body 10 by heating during the pulling up process of the silicon single crystal

by the chalkalski method Coating films 13A and 13b containing crystallizationaccelerating agents formed on the surface are provided. Diagram

申请人：株式会社ＳＵＭＣＯ

地址：東京都港区芝浦一丁目２番１号

国籍：JP

代理人：鷲頭 光宏,緒方 和文

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