METHOD OF MANUFACTURING MAGNETIC RECORDING MEDIUM HAVING DISCRETE TRACK STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a discrete track structure, for manufacturing a discrete track structure in a simple method with good productivity while maintaining satisfactory accuracy of the discrete track structure and favorable magnetic separation performance between tracks.

SOLUTION: The method includes steps of: forming an aluminum film on a nonmagnetic substrate; executing an anodizing process on the aluminum film to form an alumina layer including nano-holes in a self-organizing manner; forming a resist pattern exposing recording track regions; and depositing a magnetic material in the nano-holes in the recording track regions. The method can further include a step of forming recessed parts at positions forming the nano-holes with a nano imprint method. The method can further include a step of forming a first underlayer of titanium and a second underlayer of gold.

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