利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.013 秒)

    ELG for both MRE sensor height and resistance monitoring
    1.
    发明授权
    ELG for both MRE sensor height and resistance monitoring 失效
    ELG用于MRE传感器高度和电阻监测

    公开(公告)号：US06347983B1

    公开(公告)日：2002-02-19

    申请号：US09589926

    申请日：2000-06-07

    申请人： Shanlin Hao ,  James K. Price ,  Dongming Liu

    发明人： Shanlin Hao ,  James K. Price ,  Dongming Liu

    IPC分类号： B24B100

    CPC分类号： B24B37/04 ,  B24B49/04 ,  B24B49/10 ,  G11B5/1871 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/3166 ,  G11B5/3169 ,  G11B5/3903 ,  Y10S451/908 ,  Y10T29/49036 ,  Y10T29/49037

    摘要： A method and system for lapping a magnetic transducer using an electrical lapping guide is presented. This includes rough lapping the transducer based on a first signal and fine lapping the transducer based on a second signal from a dummy transducer. The dummy transducer can have electrical properties substantially similar to electrical properties of the magnetic transducer. The first signal can include a stripe height calculated as a function of a reference resistor element and an analog resistor element. The second signal can include lap to reader resistance from the dummy transducer and a stripe height calculated from a reference resistor element and an analog resistor element. The dummy transducer can also provide process noise monitoring capability during lapping.

    摘要翻译： 提出了一种使用电研磨导轨研磨磁传感器的方法和系统。 这包括基于第一信号粗糙地研磨传感器，并且基于来自虚拟换能器的第二信号精细研磨换能器。 虚拟换能器可以具有与磁换能器的电气特性基本相似的电气特性。 第一信号可以包括作为参考电阻器元件和模拟电阻器元件的函数计算的条纹高度。 第二信号可以包括来自虚拟换能器的搭接读取器电阻和从参考电阻器元件和模拟电阻器元件计算的条带高度。 虚拟换能器还可以在研磨过程中提供过程噪声监测能力。

    High areal density thin film magnetic head
    3.
    发明授权
    High areal density thin film magnetic head 有权
    高密度薄膜磁头

    公开(公告)号：US06525902B1

    公开(公告)日：2003-02-25

    申请号：US09416234

    申请日：1999-10-12

    申请人： Shouxiang Hu ,  James K. Price ,  Sunita B. Gangopadhyay

    发明人： Shouxiang Hu ,  James K. Price ,  Sunita B. Gangopadhyay

    IPC分类号： G11B531

    CPC分类号： G11B5/313 ,  G11B5/3163 ,  G11B5/3967

    摘要： A method of forming a thin film magnetic recording head includes forming a shared pole having a first pole tip, a first top pole segment having a second pole tip, and a write gap layer between the first pole tip and the second pole tip. A write coil can be formed after the first top pole segment and then a second top pole segment can be formed. The second top pole segment includes a connection to the first top pole segment and a connection to the shared pole. A thin film magnetic head includes a shared pole having a first pole tip, a first top pole segment having a second pole tip, a write gap layer positioned between the first pole tip and the second pole tip, a second top pole segment connected to the first top pole segment and to the shared pole, and a write coil positioned between the second top pole segment and the shared pole.

    摘要翻译： 一种形成薄膜磁记录头的方法包括：形成具有第一极尖的共享极，具有第二极尖的第一顶极段和在第一极尖和第二极尖之间的写间隙层。 可以在第一顶极段之后形成写入线圈，然后可以形成第二顶极段。 第二顶极段包括到第一顶极段的连接和到共享极的连接。 薄膜磁头包括具有第一极尖的共享极，具有第二极尖的第一顶极段，位于第一极尖和第二极尖之间的写间隙层，连接到第二极尖的第二顶极段 第一顶极段和共享极，以及位于第二顶极段和共享极之间的写入线圈。

    Narrow track inductive write head having a two-piece pole
    4.
    发明授权
    Narrow track inductive write head having a two-piece pole 有权
    窄轨感应写头，具有两片极

    公开(公告)号：US06301076B1

    公开(公告)日：2001-10-09

    申请号：US09246448

    申请日：1999-02-09

    申请人： Frank E. Stageberg ,  Kenneth P. Ash ,  James K. Price ,  Feng Wang ,  Elzbieta J. Haftek ,  Allan E. Schultz ,  Richard P. Larson

    发明人： Frank E. Stageberg ,  Kenneth P. Ash ,  James K. Price ,  Feng Wang ,  Elzbieta J. Haftek ,  Allan E. Schultz ,  Richard P. Larson

    IPC分类号： G11B5147

    CPC分类号： G11B5/3967 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3153 ,  G11B5/3163 ,  Y10T29/49025 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044

    摘要： A two-piece pole for an inductive write head has a first pole piece in the tip region contiguous the gap and confronting the other pole across the gap. The first pole piece has a width defining the gap width of the write head at the air bearing surface. A second pole piece is connected to the first pole piece and extends to the back gap. At least a portion of the second pole piece is connected to the first pole piece and has a width larger than the width of the first pole piece. The second pole piece means has surfaces within the pole tip region that intersect at external corners facing the gap, at least two surfaces of each of these external corners being joined at an obtuse angle so that none of said external corner is a sharp external corner, thereby minimizing fringe fields. In one form, a pole cap between the first and second pole pieces has a trapezoidal configuration forming the obtuse angles.

    摘要翻译： 用于感应式写入头的两片式极头具有尖端区域中的与间隙连接的第一极片，并且将另一极对面跨越间隙。 第一极片具有限定写入头在空气支承表面处的间隙宽度的宽度。 第二极靴连接到第一极靴并延伸到后隙。 第二极靴的至少一部分连接到第一极靴，其宽度大于第一极靴的宽度。 第二极靴装置具有在极尖区域内的面向间隙的外角处的表面，这些外角中的每一个的至少两个表面以钝角连接，使得所述外角部都不是尖锐的外角， 从而最小化边缘场。 在一种形式中，第一和第二极片之间的极帽具有形成钝角的梯形构造。

    Planar writer for merged GMR recording head
    6.
    发明授权
    Planar writer for merged GMR recording head 有权
    平面作家兼并GMR录音头

    公开(公告)号：US06477007B1

    公开(公告)日：2002-11-05

    申请号：US09649985

    申请日：2000-08-29

    申请人： Alexander M. Shukh ,  Edward S. Murdock ,  Steven A. Mastain ,  James K. Price

    发明人： Alexander M. Shukh ,  Edward S. Murdock ,  Steven A. Mastain ,  James K. Price

    IPC分类号： G11B5147

    CPC分类号： G11B5/3146 ,  G11B5/3109 ,  G11B5/3116 ,  G11B5/313 ,  Y10S977/934

    摘要： A magnetic recording head having an air bearing surface comprises a writer having a substantially planar single piece top pole, a shared pole and a conductive coil. The top pole and shared pole are separated by a write gap region. A magnetic stud is positioned adjacent the write gap region near the air bearing surface. The magnetic stud provides a uniform magnetic flux supply to the write gap region. The magnetic stud has a variable height along the air bearing surface. An inner surface of the magnetic stud substantially conforms to an outer surface of the conductive coil. The shared pole includes a recess, and at least a portion of the conductive coil is positioned in the recess. The recess in the shared pole is filled with an insulator that substantially surrounds the portion of the conductive coil positioned in the recess. A capping layer is formed on the portion of the conductive coil positioned in the recess. The shared pole includes a common top surface comprising a top surface of the magnetic stud, a top surface of the insulator and a top surface of the capping layer. The common top surface is made substantially planar by chemical-mechanical polishing.

    摘要翻译： 具有空气轴承表面的磁记录头包括具有基本上平面的单片顶极，共享极和导电线圈的写入器。 顶极和共用极被写入间隙区分开。 磁性螺柱位于靠近空气轴承表面的写入间隙区域附近。 磁性螺柱为写入间隙区域提供均匀的磁通量。 磁性螺柱沿空气轴承表面具有可变的高度。 磁性螺柱的内表面基本上符合导电线圈的外表面。 共享极包括凹部，并且导电线圈的至少一部分定位在凹部中。 共享极中的凹部填充有基本上围绕定位在凹部中的导电线圈的部分的绝缘体。 在位于凹部中的导电线圈的部分上形成覆盖层。 共享极包括公共顶表面，其包括磁柱的顶表面，绝缘体的顶表面和覆盖层的顶表面。 公共顶表面通过化学机械抛光制成基本平坦的。