发明名称 |
METHOD OF MANUFACTURING GLASS SUBSTRATE FOR RECORDING MEDIUM, GLASS SUBSTRATE FOR RECORDING MEDIUM, RECORDING MEDIUM AND HOLDING JIG |
摘要 |
Provided is a method of manufacturing a glass substrate efficiently via prevention of foreign matter adhesion to a glass substrate as to chemical strengthening. Disclosed is a method of manufacturing a glass substrate for a recording medium possessing the step of conducting a chemical strengthening process by which a glass substrate held by a holding jig and the holding jig are immersed in a chemical strengthening solution, and 1st alkali metal ion on a surface of the glass substrate is substituted by 2nd alkali metal ion having a larger ion diameter than that of 1st alkali metal ion contained in the chemical strengthening solution, wherein the holding jig possesses a member of material made of a metal comprising an alkali metal element, or a metal film comprising an alkali metal element to cover a surface of the holding jig from the very beginning of the chemical strengthening process.
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申请公布号 |
US2010062284(A1) |
申请公布日期 |
2010.03.11 |
申请号 |
US20070312799 |
申请日期 |
2007.11.08 |
申请人 |
WATANABE TORU;SASAKI KENICHI |
发明人 |
WATANABE TORU;SASAKI KENICHI |
分类号 |
G11B5/33;B23Q3/00;C03C17/22 |
主分类号 |
G11B5/33 |
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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