Perpendicular write head having a stepped flare structure and method of manufacture thereof
    6.
    发明授权
    Perpendicular write head having a stepped flare structure and method of manufacture thereof 有权
    具有阶梯式火炬结构的垂直写头及其制造方法

    公开(公告)号:US08797685B2

    公开(公告)日:2014-08-05

    申请号:US12646879

    申请日:2009-12-23

    IPC分类号: G11B5/127

    摘要: A magnetic write head for data recording having a magnetic write pole with a stepped magnetic shell structure that defines a secondary flare point. The secondary flare point defined by the magnetic shell portion can be more tightly controlled with respect to its distance from the air bearing surface (ABS) of the write head than can a traditional flare point that is photolithographically on the main pole structure. This allows the effective flare point of the write head to be moved much closer to the ABS than would otherwise be possible using currently available tooling and photolithography techniques. The write head also includes a non-magnetic spacer layer formed over the magnetic shell structure that is recessed from the ABS by a distance that is greater than that of the magnetic shell portion. A magnetic shield is formed over the magnetic shell and non-magnetic spacer.

    摘要翻译: 一种用于数据记录的磁写头,具有限定二次闪光点的阶梯状磁性壳结构的磁性写入极。 由磁性壳体部分限定的次级火炬点可以相对于与写入磁头的空气轴承表面(ABS)的距离比在主极结构上光刻的传统闪光点更加严格地控制。 这使得使用当前可用的工具和光刻技术可以使写入头的有效喇叭点移动得更接近ABS。 写头还包括形成在磁性壳结构上的非磁性间隔层,其从ABS凹陷的距离大于磁性壳部分的距离。 在磁性壳体和非磁性间隔物上形成磁屏蔽。