Method for making an optical recording medium

Details Method for making an optical recording medium Method for making an optical recording medium

1997-12-30

2000-04-18

Angebranndt, Martin

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430945, 4302731, 3692755, 3692752, 428 646, 428694GR, 428 644, G11B 726

Patent

active

060513632

ABSTRACT:
A method for preparing an optical recording medium of phase change type is provided. This recording medium comprises a substrate, a recording layer, and a lower and an upper dielectric layers provided in direct contact with the recording layer. In this method, a step of an exposure treatment wherein the surface of the lower dielectric layer is exposed to an oxidative atmosphere is conducted after forming the lower dielectric layer on the substrate and before forming the recording layer on the lower dielectric layer. A step of a heat treatment wherein said lower dielectric layer is heat treated may be carried out in addition to the exposure treatment.

REFERENCES:
patent: 4847132 (1989-07-01), Takao et al.
patent: 4984231 (1991-01-01), Yasuoka et al.
patent: 5395735 (1995-03-01), Nagata et al.
patent: 5479382 (1995-12-01), Nishida et al.
patent: 5688574 (1997-11-01), Tamura et al.

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