Laser textured magnetic surface micro-ridges/grooves to enhance magnetic recording performance
    1.
    发明授权
    Laser textured magnetic surface micro-ridges/grooves to enhance magnetic recording performance 失效
    激光纹理磁性表面微脊/沟槽,增强磁记录性能

    公开(公告)号:US06320728B1

    公开(公告)日:2001-11-20

    申请号:US09311358

    申请日:1999-05-13

    IPC分类号: G11B582

    CPC分类号: G11B5/82 B23K26/0823

    摘要: A magnetic data storage medium is provided that has a substrate surface with regularly spaced, continuous ridges and grooves thereby to enhance the magnetic layer crystallization orientation. Data storage tracks extend longitudinally along the ridges, the grooves between adjacent ridges providing separation between data tracks on either side of each ridge. To form the substrate surface a focused laser beam is continuously applied to the substrate in a path of generally circumferential direction on the disk surface between inner and outer radii of a data storage zone while the substrate is rotated at a relatively constant first speed and the focused beam is moved radially at a relatively constant second speed.

    摘要翻译: 提供磁数据存储介质,其具有具有规则间隔的连续脊和凹槽的基板表面,从而增强磁层结晶取向。 数据存储轨道沿着脊部纵向延伸,相邻脊之间的沟槽提供每个脊的任一侧的数据轨道之间的间隔。 为了形成衬底表面,聚焦的激光束在数据存储区的内半径和外半径之间的盘表面的大致圆周方向的路径上连续地施加到衬底,同时衬底以相对恒定的第一速度旋转,并且聚焦 光束以相对恒定的第二速度径向移动。