Optical recording medium

Details Optical recording medium Optical recording medium

1998-12-21

2000-08-01

Evans, Elizabeth

Stock material or miscellaneous articles

Circular sheet or circular blank

428 644, 428 645, 428 646, 428913, 43027013, 4304951, 430945, 369283, 369288, B32B 300

Patent

active

060963999

ABSTRACT:
A phase change type optical recording medium of Ge--Sb--Te system wherein number of overwritable operation has been increased is provided. The optical recording medium has a substrate and a recording layer of phase change type on the substrate, and the recording layer contains Ge, Sb and Te as its main elements, and at least one of Ag and Au in total content of 0.2 to less than 2.5 at % (excluding 2.5 at %).

REFERENCES:
patent: 5863702 (1999-01-01), Ohbayashi
patent: 5871881 (1999-02-01), Nishida
patent: 5882759 (1999-03-01), Hirotsune
patent: 5888680 (1999-03-01), Ohbsyashi
patent: 5978349 (1999-01-01), Yoshinari

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