Process for bonding lubricant to magnetic disk
    2.
    发明授权
    Process for bonding lubricant to magnetic disk 有权
    将润滑剂粘结到磁盘上的工艺

    公开(公告)号:US6110330A

    公开(公告)日:2000-08-29

    申请号:US345610

    申请日:1999-06-28

    Abstract: This invention relates to a process for forming a lubricant layer of differing thickness on distinct zones of a maonetic disk of a hard disk drive without heating, inert gas plasma and UV-radiation or E-beam exposition. According to the present invention. an overcoat layer with distinct zones of differing thickness is first sputtered on the disk surface by using distinct masks under different sputtering conditions. A lubricant layer is then uniformly coated on the overcoat layer. Since a part of lubricant is bonded to the overcoat to form a bonded lubricant layer and the thickness of the bonded lubricant layer relates to the overcoat layer's property, a free lubricant layer with zoned thickness is consequently formed, which the free lubricant layer consists of the leftover lubricant. The zoned lubricant layer of the invention hence decreases the flying stiction.

    Abstract translation: 本发明涉及一种用于在不加热,惰性气体等离子体和UV辐射或电子束曝光的情况下在不同区域形成硬盘驱动器的不同区域的不同厚度的润滑剂层的方法。 根据本发明。 首先通过在不同溅射条件下使用不同的掩模,在盘表面上溅射具有不同厚度的不同区域的外涂层。 然后将润滑剂层均匀地涂覆在外涂层上。 由于润滑剂的一部分结合到外涂层以形成粘合的润滑剂层,并且粘合的润滑剂层的厚度涉及外涂层的性质,因此形成了具有分区厚度的自由润滑剂层,自由润滑剂层由 剩余润滑剂。 因此,本发明的分区润滑剂层减少了飞行静止。

    Method for making magnetic disks with uneven distribution of
bonded/unbonded lubricating molecules
    3.
    发明授权
    Method for making magnetic disks with uneven distribution of bonded/unbonded lubricating molecules 失效
    制造粘结/未粘合润滑分子分布不均的磁盘的方法

    公开(公告)号:US6096385A

    公开(公告)日:2000-08-01

    申请号:US26111

    申请日:1998-02-19

    CPC classification number: G11B5/8408 G11B5/725 Y10S428/90

    Abstract: A magnetic disk having improved tribological characteristics in the data zone of the disk surface while retaining a low sliding stiction in the landing zone is disclosed. It contains the conventional elements of a substrate, a magnetic recording layer, a protective overcoat, and a lubricant layer on the protective overcoat. However, the lubricant layer is UV irradiated under a photo mask to cause a radially inner zone and a radially outer zone. The photo mask is designed so that the radially outer zone of the lubricant layer has a ratio of bonded/unbonded lubricant molecules greater than that in the radially inner zone. The reduced proportion of mobile lubricant molecules in the data zone prevents the lubricant molecules from being collected by the magnetic head. On the other hand, a large proportion of the lubricant molecules in the landing zone remained mobile. This allowed the sliding stiction in the landing zone to stay at the desiredly low value. All these were achieved with a uniform-thickness lubricating layer, thus ensuring thermodynamically stability.

    Abstract translation: 公开了一种在盘表面的数据区具有改善的摩擦特性的磁盘,同时保持着陆区中的低滑动静止。 它在保护性外涂层上含有基材,磁记录层,保护外涂层和润滑剂层的传统元件。 然而,在光掩模下对润滑剂层进行UV照射,以形成径向内部区域和径向外部区域。 光掩模被设计成使得润滑剂层的径向外部区域具有大于径向内部区域中的粘合/未粘结润滑剂分子的比例。 数据区中流动润滑剂分子的减少比例阻止润滑剂分子被磁头收集。 另一方面,着陆区的大部分润滑剂分子仍然是移动的。 这使得着陆区的滑动阻力保持在所需的低值。 所有这些都是用均匀厚度的润滑层实现的,因此确保了热力学稳定性。

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