Optical recording medium and process for producing the same

Details Optical recording medium and process for producing the same Optical recording medium and process for producing the same

1988-02-16

1989-06-13

Robinson, Ellis P.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428212, 428213, 428333, 428409, 428412, 428422, 428457, 428696, 428913, 346 76L, 3461351, 369272, 369284, 369288, 430945, B32B 104

Patent

active

048392073

ABSTRACT:
Disclosed herein is an optical recording medium for recording informations by irradiating the optical recording medium with a laser beam to form a hole or a deformed part thereon, said optical recording medium comprising a substrate and a recording layer containing at least Te, Se and F in the amounts of from 35 to 94.9 atomic % of Te, from 5 to 25 atomic % of Se and from 0.1 to 40 atomic % of F, produced by a reactive sputtering, said Se being derived from selenium fluoride and a sputtering target of Te or a sputtering target comprising Te-Se-alloy, and a process for producing the same.

REFERENCES:
patent: 4348461 (1982-09-01), Terao et al.
patent: 4385305 (1983-05-01), Terao et al.
patent: 4451914 (1989-05-01), LaBudde et al.
patent: 4592939 (1986-06-01), Temple et al.
patent: 4719594 (1988-01-01), Young et al.
patent: 4735888 (1988-04-01), Takeoka et al.
Philips Technical Review, vol. 41, No. 11/12, 1983/84, pp. 313,324, Eindhoven, NL; L. Vriens et al "Digital Optical Recording with Tellurium Alloys".
Patent Abstracts of Japan, vol. 8, No. 217 (E-270) (1964) 4 Oct. 1984 & JP A 59 103 314 (Seiko Denshi Kogyo K.K.) 14-06-1984.
Journal of Applied Physics, vol. 50, Nov. 79, pp. 6881-6886, Tokyo, JP; M. Terao et al: "Chalcogenide thin films for laser-beam recordings by thermal creation of holes".

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