Micro-texture media made by polishing of a selectively irradiate

Details Micro-texture media made by polishing of a selectively irradiate Micro-texture media made by polishing of a selectively irradiate

1998-04-09

2000-09-12

Ahmad, Nasser

Coating processes

Direct application of electrical, magnetic, wave, or...

Magnetic field or force utilized

427128, 427130, 427131, 427132, B05D 306

Patent

active

061174998

ABSTRACT:
A method of manufacturing a magnetic disk comprises the steps of: a) providing a substrate with a layer of an amorphous multi-component material at its surface; b) irradiating the amorphous layer (e.g. by applying heat from a heating element, laser beam, or the like) to thereby create micro-structurally changed regions in the amorphous layer; and c) chemo-mechanically polishing the amorphous layer to produce micro-texture features at or near the micro-structurally changed regions. The disk is then completed by depositing additional layers such as an underlayer, a magnetic layer, a protective overcoat, etc.

REFERENCES:
patent: 5062021 (1991-10-01), Ranjan
patent: 5108781 (1992-04-01), Ranjan

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