| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a magnetic disk by which an yield and the reliability of the magnetic disk is improved and its production cost is reduced by cleaning the edge of a glass substrate and removing a foreign matter on the edge of the glass substrate. Ž<P>SOLUTION: The manufacturing method of the magnetic disk using a circular plate-shaped glass substrate 100 includes a cleaning step to inject a cleaning liquid to the edge of the glass substrate at high pressure. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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