Patent ID: 6764721
Filing Date: 2004-07-20
Classification: G11B,Y10S,Y10T

Abstract:
A manufacturing method for a perpendicular magnetic recording medium, comprising:forming an anti-ferromagnetic layer on a non-magnetic substrate; forming a soft magnetic layer on said anti-ferromagnetic layer; forming a magnetic recording layer on said soft magnetic layer; forming a protective layer on said magnetic recording layer; forming a liquid lubricant layer on said protective layer; said anti-ferromagnetic layer is an Mn alloy containing at least Co at 10 atomic % or greater and 50 atomic % or less; during film formation of at least said anti-ferromagnetic layer and said soft magnetic layer, applying a magnetic field of 796 A/m (10 Oe) or greater that is parallel to a radial direction of said non-magnetic substrate.