| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a magnetic recording medium of excellent productivity which does not deteriorate a ratio (duty) of a magnetic portion and a separating portion caused by the horizontal expansion of a magnetic characteristic damage, and is manufactured by a simple method. <P>SOLUTION: The method includes a separating portion forming process. The process alters magnetic characteristics of a magnetic recording layer at positions corresponding to concave portions of a mask layer by ion implantation or exposure to an activated halogen-containing reactive gas via the mask layer having a concavo-convex pattern formed thereon by imprinting, thereby forming the separating portion that magnetically separates magnetic portions of the magnetic recording layer in positions corresponding to convex portions of the mask layer. A resist material forming the mask layer varies the shape of the concavo-convex pattern after an imprinting process, and a taper angle of a stepped portion of the concavo-convex pattern in the mask layer when starting the separating portion forming process is between 66° and 88°. <P>COPYRIGHT: (C)2011,JPO&INPIT |
