Method of making magneto-optical recording disk
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United States of America Patent
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Feb 11, 1992
Grant Date -
N/A
app pub date -
Oct 10, 1990
filing date -
Dec 1, 1989
priority date (Note) -
Expired
status (Latency Note)
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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.
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