发明名称 |
Optischer Aufzeichnungsträger. |
摘要 |
In an optical memory of phase transition type such that information is recorded or erased by reversibly changing the phase of a thin recording film between equilibrium phase and non-equilibrium phase in response to a laser beam, the memory is formed with a recording film comprising as the main component an intermetallic compound with a melting point between 300 DEG to 800 DEG C. in accordance with a binary target co-sputtering technique. Since the phase transition temperature of the recording film is higher than room temperatures, the recorded film can stably be kept in non-equilibrium phase state for a long time. Further, since the melting point thereof is lower than 800 DEG C., it is possible to record or erase information in or from the medium in response to a relatively small power laser beam. |
申请公布号 |
DE3783244(T3) |
申请公布日期 |
2000.02.03 |
申请号 |
DE19873783244T |
申请日期 |
1987.02.27 |
申请人 |
KABUSHIKI KAISHA TOSHIBA, KAWASAKI |
发明人 |
KOBAYASHI, TADASHI;SUZUKI, KATSUMI;NAKAMURA, NAOMASA |
分类号 |
G11B11/03;G11B7/24;G11B7/243;(IPC1-7):G11B7/24 |
主分类号 |
G11B11/03 |
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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