Magneto-optical disk

Details Magneto-optical disk Magneto-optical disk

1993-11-09

1997-02-18

Kiliman, Leszek

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

20419226, 2041922, 428694DF, 428694NF, 428694AM, 428800, 428 643, 360 59, 360114, 360131, 360135, 365122, 369 13, G11B 566, C23C 1400

Patent

active

056038143

ABSTRACT:
A method of making a magneto-optical disk. A first AlGeN dielectric film is formed by reactive sputtering on a substrate. Two targets, one of aluminum and one of germanium, are used in the sputtering in a mixed atmosphere having at least nitrogen gas. Alternatively, a single target using an aluminum germanium alloy can be used. A magnetic film is formed on top of this dielectric film. A second dielectric film is then formed on top of the magnetic film. An adhesive film is formed on top of the second dielectric film and a second substrate adhered thereto.

REFERENCES:
patent: 5055353 (1991-10-01), Yamamoto
patent: 5283133 (1994-02-01), Tsutsumi

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