Fabrication method for perpendicular magnetic recording media

Details Fabrication method for perpendicular magnetic recording media Fabrication method for perpendicular magnetic recording media

2005-04-27

2009-12-22

Kornakov, Michael (Department: 1792)

Coating processes

Magnetic base or coating

Magnetic coating

C427S131000, C428S611000, C428S690000, C428S800000, C428S846000, C428S900000, C204S192380

Reexamination Certificate

active

07635498

ABSTRACT:
A perpendicular magnetic recording medium and method thereof, includes a nonmagnetic substrate; a soft magnetic under layer; an intermediate layer; a bilayer magnetic recording layer; a protective layer; and a liquid lubricant layer. According to a following order, the soft magnetic under layer, the intermediate layer, the bilayer magnetic recording layer, the protective layer, and the liquid lubricant layer are sequentially stacked on the nonmagnetic substrate. The bilayer magnetic recording layer includes a first magnetic layer including a CoCr alloy crystalline film, and a second magnetic layer including a rare earth-transition metal alloy noncrystalline film.

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