Method of making magneto-optical recording medium

Details Method of making magneto-optical recording medium Method of making magneto-optical recording medium

1990-10-25

1993-03-30

Weisstuch, Aaron

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

2041922, 20419226, C23C 1434, G11B 726

Patent

active

051980878

ABSTRACT:
A process for preparing a magneto-optical recording medium is disclosed in which a recording layer is formed from a vertical magnetizing film made of amorphous metal having a magnetization facilitating axis in a vertical direction on a substrate material. A protective film layer of a metal or semi-metal oxide, nitride or sulphide as a main ingredient is formed on the recording layer in a vacuum chamber, and the surface energy of the protective film is raised by etching it with plasma. The close adhesion of a next applied photosetting resin layer is thereby improved.

REFERENCES:
patent: 4832980 (1989-05-01), Ichihara et al.
patent: 4892634 (1990-01-01), Glocker et al.

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