Title:
情報記録媒体とその製造方法
Document Type and Number:
Japanese Patent JP4722960
Kind Code:
B2
Abstract:
An information recording medium which ensures high reliability and favorable overwrite cyclability is provided, even when an interface layer is not provided between a recording layer and a dielectric layer. The recording layer 4 and the dielectric layers 2 and 6 are formed on the surface of the substrate 1. In the recording layer 4, a phase change is generated between a crystal phase and an amorphous phase by irradiation of light or application of an electric energy. The dielectric layers 2 and 6 are Zr-Zn-S-O-based material layers comprising Zr, Zn, S and O, preferably consisting essentially of a material expressed, for example, with the formula (ZrO2)X(Zn-S)100-X (mol %) wherein X is in the range of 50<=X<=80.
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Inventors:
Rie Kojima
Haruhiko Dobita
Noboru Yamada
Haruhiko Dobita
Noboru Yamada
Application Number:
JP2008085703A
Publication Date:
July 13, 2011
Filing Date:
March 28, 2008
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
B32B3/02; B32B9/04; B41M5/26; G11B7/24; G11B7/243; G11B7/2433; G11B7/2437; G11B7/254; G11B7/257; G11B7/26; G11B7/0045; G11B7/256; H01L45/00
Domestic Patent References:
| JP2000348380A | ||||
| JP2002260281A |
Foreign References:
| WO2000054982A1 |
Attorney, Agent or Firm:
Samejima Mutsumi
Kyousei Tamura
Genban Sanae
Kyousei Tamura
Genban Sanae