- 专利标题： Method for manufacturing glass substrate of information recording medium
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申请号： US10346562申请日： 2003-01-17
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公开(公告)号： US07140203B2公开(公告)日： 2006-11-28
- 发明人: Yasuhiro Saito , Kazuishi Mitani , Tatsuro Umeyama , Koji Okuhata , Toshiaki Hashimoto
- 申请人： Yasuhiro Saito , Kazuishi Mitani , Tatsuro Umeyama , Koji Okuhata , Toshiaki Hashimoto
- 申请人地址： JP Tokyo
- 专利权人： Hoya Corporation
- 当前专利权人： Hoya Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Fish & Richardson P.C.
- 优先权： JP2002-010672 20020118; JP2002-123452 20020425
- 主分类号： C03C21/00
- IPC分类号： C03C21/00 ; C03C19/00 ; C03C15/00
摘要：
Provided is a method for manufacturing a glass substrate for an information recording medium, which is advantageous in that oozing of an alkali and deformation of a texture are suppressed. The glass substrate is chemically reinforced, and a texture is formed in the glass substrate, and then treated with a neutral or alkaline aqueous solution. In the texture forming step, the surface of the glass substrate is etched in a depth of 0.5 to 10 nm.