Magnetic disk medium with designed textured surfaces and control

Details Magnetic disk medium with designed textured surfaces and control Magnetic disk medium with designed textured surfaces and control

1993-12-21

1996-11-19

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record medium

Disk

428694SG, G11B 582

Patent

active

055769187

ABSTRACT:
In a magnetic disk medium, a substrate is etched to have a designed, controlled topography. A magnetic recording medium and a protective layer are provided over the substrate. A method for controlling production of the surface characteristics of the magnetic disk medium is controlled to optimize surface characteristics for use of the magnetic disk medium in a magnetic disk apparatus that reads information stored on the magnetic disk medium.

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