Grooved optical data storage device including a chalcogenide mem

Details Grooved optical data storage device including a chalcogenide mem Grooved optical data storage device including a chalcogenide mem

1985-08-26

1988-01-12

Hecker, Stuart N.

Static information storage and retrieval

Radiant energy

Amorphous

365215, 346137, 346 76L, 369277, 369286, 430945, G11C 1300, G11B 370

Patent

active

047195940

ABSTRACT:
Disclosed is an optical data storage device having incorporated therein an optical data storage medium. The optical data storage device is switchable between at least two detectable states by the application of projected beam and energy thereto. The optical data storage device has a first substantially transparent substrate with a first polymeric adhesive layer thereon characterized by grooves in the form of lands and valleys, a first inorganic encapsulating layer, a layer of the state changeable chalcogenide memory material, a second inorganic encapsulating layer, an adhesive layer, and a second substantially transparent substrate adherant to the adhesive layer.

REFERENCES:
patent: 4417331 (1983-11-01), Takaoka et al.
patent: 4449138 (1984-05-01), Ando
patent: 4461807 (1984-07-01), Mori et al.
patent: 4606017 (1986-08-01), Broer et al.

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