Magnetic disk and method of producing the same

Details Magnetic disk and method of producing the same Magnetic disk and method of producing the same

2007-01-23

2007-01-23

Bashore, Alain L. (Department: 1762)

Coating processes

Magnetic base or coating

C427S128000, C427S130000, C427S131000, C427S535000, C427S447000

Reexamination Certificate

active

10854256

ABSTRACT:
A magnetic disk includes a substrate on which a nonmagnetic metal layer, a magnetic layer, a carbon-based protection layer, an alcohol-based coupling layer, and a lubrication layer successively formed thereon. The lubrication layer contains a hydroxyl- or a carboxyl-modified compound as a lubricating material. The alcohol-based coupling layer contains, for example, lower alcohol as a main component and is deposited on the carbon-based protection layer, for example, by vapor deposition. The alcohol-based coupling layer may be replaced by a layer containing lower alcohol. The carbon-based protection layer may be deposited by plasma CVD.

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