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    Perpendicular write head with high magnetization pole material and method of fabricating the write head
    1.
    发明授权
    Perpendicular write head with high magnetization pole material and method of fabricating the write head 有权
    具有高磁化极材料的垂直写头和制造写头的方法

    公开(公告)号：US06687085B2

    公开(公告)日：2004-02-03

    申请号：US10037932

    申请日：2002-01-04

    申请人： Michael Kevin Minor ,  Robert Earl Rottmayer ,  Michael Allen Seigler ,  Andrew Robert Eckert ,  Mark William Covington

    发明人： Michael Kevin Minor ,  Robert Earl Rottmayer ,  Michael Allen Seigler ,  Andrew Robert Eckert ,  Mark William Covington

    IPC分类号： G11B5147

    CPC分类号： G11B5/187 ,  G11B5/012 ,  G11B5/127 ,  G11B5/1278

    摘要： A write head comprises a yoke including a top pole and a bottom pole, the top pole including a layer of insulating material, a layer of a first magnetic material positioned on a surface of the layer of insulating material, the first magnetic material having a first end positioned adjacent to an air bearing surface of the write pole, and a layer of a second magnetic material positioned on the surface of the layer of insulating material, the second magnetic material having a lower magnetic moment than the first magnetic material and being positioned to conduct magnetic flux between the return pole and the layer of first magnetic material. The method of constructing the write head and a disc drive including the write head are also included.

    摘要翻译： 一个写头包括一个包括顶极和一个底极的磁轭，顶极包括一层绝缘材料，第一个磁性材料层位于绝缘材料层的一个表面上，第一个磁性材料有一个第一个 并且位于与所述写入极的空气支承表面相邻的端部以及位于所述绝缘材料层的表面上的第二磁性材料层，所述第二磁性材料具有比所述第一磁性材料更低的磁矩并且定位成 在返回极和第一磁性材料层之间传导磁通。 还包括构成写入头的方法和包括写入头的盘驱动器。

    Recording heads including a magnetically damped write pole and recording systems including such heads
    2.
    发明授权
    Recording heads including a magnetically damped write pole and recording systems including such heads 有权
    记录头包括磁阻写入磁极和包括这种磁头的记录系统

    公开(公告)号：US07595959B2

    公开(公告)日：2009-09-29

    申请号：US11170035

    申请日：2005-06-29

    申请人： Mark William Covington ,  Ganping Ju ,  Werner Scholz ,  Michael Kevin Minor

    发明人： Mark William Covington ,  Ganping Ju ,  Werner Scholz ,  Michael Kevin Minor

    IPC分类号： G11B5/127

    CPC分类号： G11B5/667 ,  G11B5/1278 ,  G11B5/581 ,  G11B5/6005 ,  Y10T428/115 ,  Y10T428/1186

    摘要： A magnetic recording system is disclosed in which the magnetization dynamics of the write head and recording medium are highly damped. The system may comprise a perpendicular recording head having a write pole, and a recording medium including a hard magnetic recording layer and a soft magnetic underlayer (SUL). The increased magnetic damping in the write pole and SUL suppresses precessional motion of the respective magnetizations, leading to a reduction in transition jitter caused by spurious head field fluctuations. The damping may be increased by providing films or multilayer structures that are doped with rare earth or transition metal elements. Exchange coupled laminates of doped and undoped layers may optimize both the effective damping and write field in the recording system.

    摘要翻译： 公开了一种磁记录系统，其中写头和记录介质的磁化动力学被高度阻尼。 该系统可以包括具有写入极的垂直记录头和包括硬磁记录层和软磁性底层（SUL）的记录介质。 写入磁极和SUL中的增加的磁阻抑制了相应磁化的进动运动，导致由杂散磁头场波动引起的转换抖动的减小。 可以通过提供掺杂有稀土或过渡金属元素的膜或多层结构来增加阻尼。 掺杂和未掺杂层的交换耦合层压板可以优化记录系统中的有效阻尼和写入场。

    Method of making a recording head
    3.
    发明授权
    Method of making a recording head 失效
    制作记录头的方法

    公开(公告)号：US06959483B2

    公开(公告)日：2005-11-01

    申请号：US10441575

    申请日：2003-05-20

    申请人： Billy Wayne Crue ,  Michael Kevin Minor ,  Richard Joseph Bojko

    发明人： Billy Wayne Crue ,  Michael Kevin Minor ,  Richard Joseph Bojko

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  H04R31/00

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/313 ,  G11B5/3163 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T29/49032 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/49073 ,  Y10T29/49401

    摘要： A recording head for use with magnetic recording media has an improved structure, made by a simplified manufacturing process. The electrically insulating materials within the recording head are inorganic. The insulating materials are vacuum deposited, with no need to use a hard bake process that would be required for use of organic insulators. In one embodiment, the write gap is first masked, and then the coil is deposited on the write gap. A slightly larger area is then exposed within the mask, permitting insulation to be deposited over the coil. In a second embodiment, the coil and associated insulation are deposited and then milled to have a tapered configuration. This recording head also places the writing pole on a very flat surface, thereby allowing plated or deposited films to be easily manufactured to correspond to narrow track widths.

    摘要翻译： 与磁记录介质一起使用的记录头具有通过简化制造过程制成的改进的结构。 记录头内的电绝缘材料是无机的。 绝缘材料被真空沉积，不需要使用有机绝缘体所需的硬烘烤工艺。 在一个实施例中，首先掩蔽写入间隙，然后将线圈沉积在写入间隙上。 然后在面罩内暴露稍大的面积，允许绝缘层沉积在线圈上。 在第二实施例中，将线圈和相关联的绝缘体沉积，然后研磨成具有锥形构型。 该记录头还将书写极放置在非常平坦的表面上，从而允许电镀或沉积的膜容易制造以对应于窄的轨道宽度。