发明名称 |
Optical information storage medium |
摘要 |
An optical information storage medium includes a multilayer structure formed on a substrate. The multilayer structure is formed by a sputtering process in a discharge gas and includes at least a first dielectric layer, a recording layer which shows reversible phase change between an amorphous phase and a crystal phase, and a second dielectric layer. The multilayer structure contains sufficiently small amount of the discharge gas so that a limited amount or less of voids of the discharge gas generates in the recording layer during repeated overwrite operations.
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申请公布号 |
US5750228(A) |
申请公布日期 |
1998.05.12 |
申请号 |
US19950565992 |
申请日期 |
1995.12.01 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
SAKAUE, YOSHITAKA;OHNO, EIJI;IDE, KAZUHISA;NAGATA, KENICHI;YAMADA, NOBORU |
分类号 |
C23C14/06;C23C14/34;G11B7/24;G11B7/243;G11B7/257;G11B7/26;(IPC1-7):B32B3/00 |
主分类号 |
C23C14/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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