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Method of manufacturing glass substrate for recording medium, glass substrate for recording medium, recording medium and holding jig
Method of manufacturing glass substrate for recording medium, glass substrate for recording medium, recording medium and holding jig
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机译:记录介质用玻璃基板的制造方法,记录介质用玻璃基板,记录介质及保持夹具
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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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