Method of making magneto-optical recording disk

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

1990-10-10

1992-02-11

Weisstuch, Aaron

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

20419216, 20419222, 20419226, 428694, 428698, C23C 1434

Patent

active

050873407

ABSTRACT:
A magneto-optical recording disk comprises a transparent substrate on which a magneto-optical recording layer made of a rare earth-transition metal alloy having an uniaxial magnetic anisotropy is sandwiched by a pair of dielectric layers is characterized that the dielectric layers are deposited in an amorphous state by means of a low pressure sputtering method.

REFERENCES:
patent: 4684454 (1987-08-01), Gardner
patent: 4954232 (1990-09-01), Yamada et al.
patent: 4957604 (1990-09-01), Steininger
patent: 4959136 (1990-09-01), Hatwar

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