Use of magnetic material for RIE stop layer during damascene main pole formation
    1.
    发明授权
    Use of magnetic material for RIE stop layer during damascene main pole formation 有权
    在镶嵌主磁极形成期间使用磁性材料作为RIE停止层

    公开(公告)号:US08508886B2

    公开(公告)日:2013-08-13

    申请号:US13247883

    申请日:2011-09-28

    IPC分类号: G11B5/31

    摘要: A write head for use in a magnetic disk drive and methods of manufacturing the same. When a non-magnetic reactive ion etching (RIE) stop layer is used in a damascene main pole fabrication process, the leading edge shield and the side shield have a magnetic separation. By replacing a non-magnetic RIE stop layer with a magnetic RIE stop layer, no removal of the RIE stop layer around the main pole is necessary. Additionally, the leading edge shield and the side shield will magnetically join together without extra processing as there will be no magnetic separation between the leading edge shield and the side shield.

    摘要翻译: 用于磁盘驱动器的写入头及其制造方法。 当在非镶嵌主极制造工艺中使用非磁性反应离子蚀刻(RIE)停止层时,前缘屏蔽和侧面屏蔽层具有磁分离。 通过用磁RIE停止层代替非磁性RIE停止层,不需要在主极周围去除RIE停止层。 此外,前缘屏蔽和侧屏蔽将磁性地结合在一起而不需要额外的处理,因为前缘屏蔽和侧屏蔽之间将不会有磁性分离。

    Perpendicular magnetic recording head utilizing a nonmagnetic underlayer layer
    2.
    发明授权
    Perpendicular magnetic recording head utilizing a nonmagnetic underlayer layer 有权
    垂直磁记录头利用非磁性底层

    公开(公告)号:US07911735B1

    公开(公告)日:2011-03-22

    申请号:US11716346

    申请日:2007-03-09

    IPC分类号: G11B5/147 H04R31/00

    摘要: The method and system for providing a perpendicular magnetic recording (PMR) head are described. The PMR head includes a base layer, a nonmagnetic metal underlayer on the base layer, and a PMR pole on the nonmagnetic metal underlayer. The PMR pole has a top that is wider than its bottom. The base layer has a first hardness with respect to a pole trim. The nonmagnetic metal underlayer has a second hardness with respect to the pole trim. The second hardness is less than the first hardness.

    摘要翻译: 描述了用于提供垂直磁记录(PMR)头的方法和系统。 PMR头包括基底层,基底层上的非磁性金属底层和非磁性金属底层上的PMR极。 PMR杆具有比底部更宽的顶部。 基底层具有相对于极修剪的第一硬度。 非磁性金属底层相对于磁极修整具有第二硬度。 第二硬度小于第一硬度。