Optical recording medium and fabrication method therefor

Details Optical recording medium and fabrication method therefor Optical recording medium and fabrication method therefor

1998-05-12

2000-08-15

Evans, Elizabeth

Stock material or miscellaneous articles

Circular sheet or circular blank

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

Patent

active

061033308

ABSTRACT:
The invention provides a method of fabricating an optical recording medium comprising a phase change type recording layer containing at least one element selected from In, Ag, Te and Sb. The recording layer is formed by a sputtering technique wherein sputtering is carried out while an inert gas and an oxygen gas are introduced in a vacuum chamber in a sputtering system, so that the number of overwritable cycles can be increased by simple means.

REFERENCES:
patent: 5271978 (1993-12-01), Vazan
patent: 5688574 (1997-11-01), Tamura et al.
patent: 5891542 (1999-04-01), Tominaga et al.
patent: 5906874 (1999-05-01), Takahashi et al.

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