Reversible optical information medium

Details Reversible optical information medium Reversible optical information medium

1997-07-10

1999-08-10

Evans, Elizabeth

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428 641, 428 642, 428 644, 428 645, 428 646, 428 647, 428457, 428688, 428913, 43027013, 4304951, 430945, 3692751, 3692754, 369283, 369288, B32B 302

Patent

active

059356723

ABSTRACT:
A description is given of an reversible optical information medium comprising a substrate, a first dielectric layer, a phase-change recording layer on the basis of Ge--Sb--Te, a second dielectric layer, and a metal mirror layer. The recording layer comprises an alloy having the composition Ge.sub.50x Sb.sub.40-40x Te.sub.60-10x in atom %, wherein

REFERENCES:
patent: 5289453 (1994-02-01), Ohno et al.
patent: 5474826 (1995-12-01), Honguh et al.
patent: 5581539 (1996-12-01), Horie et al.
patent: 5641606 (1997-06-01), Suzuki et al.
patent: 5652037 (1997-07-01), Ohkawa et al.

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