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42 条记录 (耗时 0.038 秒)

    Optical information recording medium
    15.
    发明授权
    Optical information recording medium 失效
    光信息记录介质

    公开(公告)号：US5305303A

    公开(公告)日：1994-04-19

    申请号：US765515

    申请日：1991-09-25

    申请人： Nobuo Akahira ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Kenichi Nagata ,  Noboru Yamada

    发明人： Nobuo Akahira ,  Eiji Ohno ,  Kenichi Nishiuchi ,  Kenichi Nagata ,  Noboru Yamada

    IPC分类号： G11B7/00 ,  G11B7/24 ,  G11B7/30

    CPC分类号： G11B7/24 ,  Y10S430/146

    摘要： An optical information recording medium comprising: a substrate; a recording film in which an optically detectable amount is subjected to change; and at least one additional layer; the recording film and the additional layer being provided on the substrate; information being recorded by partially changing the recording film through irradiation of a laser beam thereto and being reproduced by optically detecting change of the optically detectable amount; the recording film being made of material assuming a plurality of states having different optical constants, respectively; physical conditions of the additional layer being selected such that a differential coefficient of the optically detectable amount relative to the optical con- stants is small in at least one of the states.

    摘要翻译： 一种光学信息记录介质，包括：基板; 其中可光学检测量经历变化的记录膜; 和至少一个附加层; 记录膜和附加层设置在基板上; 通过照射激光束部分地改变记录膜并通过光学检测光学可检测量的变化来再现信息; 记录膜分别由具有不同光学常数的多种状态的材料制成; 选择附加层的物理条件使得在至少一种状态下光学可检测量相对于光学常数的微分系数小。

    Method for fabricating optical information storage medium
    17.
    发明授权
    Method for fabricating optical information storage medium 失效
    光学信息存储介质的制造方法

    公开(公告)号：US5505835A

    公开(公告)日：1996-04-09

    申请号：US199550

    申请日：1994-02-22

    申请人： Yoshitaka Sakaue ,  Eiji Ohno ,  Kazuhisa Ide ,  Kenichi Nagata ,  Noboru Yamada

    发明人： Yoshitaka Sakaue ,  Eiji Ohno ,  Kazuhisa Ide ,  Kenichi Nagata ,  Noboru Yamada

    IPC分类号： C23C14/06 ,  C23C14/34 ,  G11B7/24 ,  G11B7/243 ,  G11B7/257 ,  G11B7/26

    CPC分类号： G11B7/243 ,  C23C14/06 ,  C23C14/34 ,  G11B7/24 ,  G11B7/257 ,  G11B7/26

    摘要： In forming steps of a recording layer or a dielectric layer of a phase change type optical disk by sputtering, a discharge gas which includes at least one of Kr gas and Xe gas is used. Alternatively, at least one of Ar gas and N.sub.2 gas may be further added to the discharge gas. Forming the recording layer or the dielectric layer of the phase change type optical disk in these discharge gases enables preventing of the introduction of the discharge gas into each layer during the forming steps. As a result, the void generation and growth in the recording layer is suppressed. Consequently, the deterioration of the cycle life characteristics due to repeated overwrite operations can be restrained. Therefore, high reliability and long life of the phase change type optical disk is attained.

    摘要翻译： 在通过溅射形成相变型光盘的记录层或电介质层的步骤中，使用包括Kr气体和Xe气体中的至少一种的放电气体。 或者，可以进一步向放电气体中添加Ar气体和N 2气体中的至少一种。 在这些放电气体中形成相变型光盘的记录层或电介质层能够防止在成形步骤期间将放电气体引入各层。 结果，抑制了记录层中的空隙生成和生长。 因此，可以抑制由于重复的重写操作引起的循环寿命特性的劣化。 因此，可以实现相变型光盘的高可靠性和长寿命。