发明申请
- 专利标题: TITANIA-DOPED QUARTZ GLASS AND MAKING METHOD
- 专利标题(中): TITANIA-DOPED QUARTZ玻璃和制造方法
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申请号: US12967175申请日: 2010-12-14
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公开(公告)号: US20110159413A1公开(公告)日: 2011-06-30
- 发明人: Shigeru Maida , Hisatoshi Otsuka , Tetsuji Ueda , Masanobu Ezaki
- 申请人: Shigeru Maida , Hisatoshi Otsuka , Tetsuji Ueda , Masanobu Ezaki
- 申请人地址: JP Tokyo
- 专利权人: SHIN-ETSU CHEMICAL CO., LTD.
- 当前专利权人: SHIN-ETSU CHEMICAL CO., LTD.
- 当前专利权人地址: JP Tokyo
- 优先权: JP2009-294557 20091225
- 主分类号: G03F1/00
- IPC分类号: G03F1/00 ; C03B19/00 ; C03C3/04
摘要:
A titania-doped quartz glass which experiences a reduction in OH group concentration of less than or equal to 100 ppm upon heat treatment at 900° C. for 100 hours is suitable as the EUV lithography member.