| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a discrete track medium having satisfactory surface flatness and free from deterioration of magnetic characteristics. SOLUTION: In the manufacturing method of the discrete track medium, a projecting magnetic pattern is formed on a substrate, a non-magnetic body is film-deposited so as to fill a recessed part between the magnetic patterns and an operation for etch-back of the non-magnetic body is repeated twice or more by rotating the substrate in its surface by an angle smaller than one rotation. COPYRIGHT: (C)2009,JPO&INPIT
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