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    Methods for evaluating the effectiveness of protective overcoats for thin film, magnetic disk media
    4.
    发明授权
    Methods for evaluating the effectiveness of protective overcoats for thin film, magnetic disk media 失效
    评估薄膜，磁盘介质保护性外涂层有效性的方法

    公开(公告)号：US5660695A

    公开(公告)日：1997-08-26

    申请号：US375961

    申请日：1995-01-20

    申请人： Nader Mahvan ,  Atef H. Eltoukhy

    发明人： Nader Mahvan ,  Atef H. Eltoukhy

    IPC分类号： G11B5/84 ,  C23C14/34

    CPC分类号： G11B5/84

    摘要： A method for manufacturing thin film magnetic media disks entailing the improvement arising from causing spaced electrical probes to engage spaced portions of an exposed outer surface of a disk overcoat layer; creating a voltage across the spaced electrodes; measuring a function of electrical resistance between the ends of the probes in engagement with the exposed outer surface of the overcoat layer; and employing this measured resistance function generally as a measure of wear properties of the overcoat layer.

    摘要翻译： 一种用于制造薄膜磁性介质盘的方法，其特征在于，由于使间隔开的电探针与盘外涂层的暴露的外表面的间隔部分接合而产生改进; 跨越间隔的电极产生电压; 测量与外涂层的暴露的外表面接合的探针端部之间的电阻函数; 并且通常将该测量的电阻函数用作外涂层的磨损性能的量度。

    Flash chromium interlayer for improved hard disk magnetic recording performance
    5.
    发明授权
    Flash chromium interlayer for improved hard disk magnetic recording performance 失效
    闪光铬夹层，用于改善硬盘磁记录性能

    公开(公告)号：US5462796A

    公开(公告)日：1995-10-31

    申请号：US887187

    申请日：1992-05-21

    申请人： Edward Teng ,  Atef H. Eltoukhy

    发明人： Edward Teng ,  Atef H. Eltoukhy

    IPC分类号： G11B5/66 ,  B32B5/16

    CPC分类号： G11B5/66 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/265

    摘要： A discontinuous flash chrome interlayer of about 5 to 25 .ANG. is incorporated between the upper and lower magnetic recording alloy layers. This flash non-magnetic separation layer is so thin that it is, in fact, a discontinuous layer, so that while the benefits of having some chrome flashed on the surface of the first portion of the magnetic recording alloy are achieved, yet the upper and lower magnetic recording alloy layers are not completely physically separated as they are in disks made according to known sputtering processes.

    摘要翻译： 在上下磁记录合金层之间并入有约5至25安培的不连续的闪铬夹层。 这种闪光非磁性分离层非常薄，实际上是不连续的层，从而实现了在磁记录合金的第一部分的表面上闪闪发光的优点，但是上， 较低的磁记录合金层并不完全物理地分离，因为它们在根据已知的溅射工艺制成的盘中。

    Method for making smooth-surfaced magnetic recording medium
    7.
    发明授权
    Method for making smooth-surfaced magnetic recording medium 失效
    制备光滑表面磁记录介质的方法

    公开(公告)号：US5037515A

    公开(公告)日：1991-08-06

    申请号：US408655

    申请日：1989-09-18

    申请人： Hsiao-Chu Tsai ,  Atef H. Eltoukhy

    发明人： Hsiao-Chu Tsai ,  Atef H. Eltoukhy

    IPC分类号： G11B5/82 ,  C23C14/16 ,  C23C14/18 ,  G11B5/64 ,  G11B5/66 ,  G11B5/73 ,  G11B5/738 ,  G11B5/85 ,  G11B5/851

    CPC分类号： G11B5/7325 ,  C23C14/165 ,  C23C14/185 ,  G11B5/851

    摘要： A high-density thin-film magnetic disc and method of producing the disc. In forming the disc, chromium is sputtered onto a smooth-surfaced, non-metallic substrate, such as a glass substrate, first at room temperature, to form a substratum with a random structure, then at a high temperature, to form a chromium underlayer with anisotropic crystal orientation. A cobalt-based alloy is sputtered onto the underlayer to form the thin film magnetic layer. The disc has high coercivity, low bit shift, and can be operated at a flying height of between 2-4 .mu.inches.

    摘要翻译： 一种高密度薄膜磁盘及其制造方法。 在形成盘时，首先在室温下将铬溅射到光滑表面的非金属基底（例如玻璃基底）上，以形成具有随机结构的基底，然后在高温下形成铬底层 具有各向异性晶体取向。 将钴基合金溅射到底层上以形成薄膜磁性层。 该盘具有高矫顽力，低位偏移，并且可以在2-4英寸之间的飞行高度下操作。