Substrate for a magnetic recording medium, the magnetic recordin

Details Substrate for a magnetic recording medium, the magnetic recordin Substrate for a magnetic recording medium, the magnetic recordin

1998-04-24

2000-08-01

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428694TR, 428694SG, 428900, G11B 566

Patent

active

060964456

ABSTRACT:
A non-ferromagnetic metal thin film is formed on a non-ferromagnetic substrate such as a glass substrate. A target principally containing an intermetallic compound is sputtered to form a fine structure having discrete bumps provided on the surface of the substrate. In addition, ring bumps different from the bumps of the intermetallic compound are formed on a contact start/stop zone by a laser or other means, thus completing a magnetic recording medium.

REFERENCES:
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patent: 5662984 (1997-09-01), Honda
patent: 5705287 (1998-01-01), Doerner
patent: 5843561 (1998-12-01), Uwazumi

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