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43 条记录 (耗时 0.047 秒)

    Self-aligned coil process in magnetic recording heads
    5.
    发明授权
    Self-aligned coil process in magnetic recording heads 有权
    磁记录头中的自对准线圈过程

    公开(公告)号：US08826515B2

    公开(公告)日：2014-09-09

    申请号：US12753620

    申请日：2010-04-02

    申请人： Terence Tin-Lok Lam ,  David Kaimon Lee ,  Edward Hin Pong Lee ,  Changqing Shi

    发明人： Terence Tin-Lok Lam ,  David Kaimon Lee ,  Edward Hin Pong Lee ,  Changqing Shi

    IPC分类号： G11B5/17 ,  G11B5/187

    CPC分类号： G11B5/3116 ,  G11B5/17 ,  G11B5/313 ,  G11B5/3136 ,  G11B5/3163 ,  G11B5/3967 ,  H01F41/041 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49062 ,  Y10T29/49064 ,  Y10T428/1121

    摘要： A write head includes a first pole P1, a P1 pedestal, a first back gap layer plated on top of the first pole P1 leaving a region between the P1 pedestal and the first back gap layer for plating a coil. Further, a first insulation layer is applied on top of the P1 pedestal and the first back gap layer and the region between the P1 pedestal and the first back gap layer. The write head further includes a coil, patterned at least partially on top of the P1 pedestal and the first back gap layer and the region between the P1 pedestal and the first back gap layer, copper plated in the coil patterns, and a second insulation layer is applied to fill the spaces in between the coil turns. The resulting structure is planarized via chemical mechanical polishing.

    摘要翻译： 写头包括第一极P1，P1基座，电镀在第一极P1的顶部上的第一后隙间隔层，留下P1基座和第一后间隙层之间的区域，用于电镀线圈。 此外，第一绝缘层施加在P1基座和第一后间隙层的顶部以及P1基座和第一后间隙层之间的区域。 写入头还包括线圈，其至少部分地形成在P1基座和第一后部间隙层的顶部上，以及P1基座和第一后部间隙层之间的区域，镀在线圈图案中的铜以及第二绝缘层 应用于填充线圈匝间的空间。 所得结构通过化学机械抛光进行平面化。

    SELF-ALIGNED COIL PROCESS IN MAGNETIC RECORDING HEADS
    6.
    发明申请
    SELF-ALIGNED COIL PROCESS IN MAGNETIC RECORDING HEADS 有权
    磁记录头自对准线圈工艺

    公开(公告)号：US20100187199A1

    公开(公告)日：2010-07-29

    申请号：US12753620

    申请日：2010-04-02

    申请人： Terence Tin-Lok Lam ,  David Kaimon Lee ,  Edward Hin Pong Lee ,  Changqing Shi

    发明人： Terence Tin-Lok Lam ,  David Kaimon Lee ,  Edward Hin Pong Lee ,  Changqing Shi

    IPC分类号： G11B5/187

    CPC分类号： G11B5/3116 ,  G11B5/17 ,  G11B5/313 ,  G11B5/3136 ,  G11B5/3163 ,  G11B5/3967 ,  H01F41/041 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49062 ,  Y10T29/49064 ,  Y10T428/1121

    摘要： In one embodiment of the present invention, a write head includes a first pole P1, a P1 pedestal, a first back gap layer plated on top of the first pole P1 leaving a region between the P1 pedestal and the first back gap layer for plating a coil, a first insulation layer applied on top of the P1 pedestal and the first back gap layer and the region between the P1 pedestal and the first back gap layer. The write head further includes a coil, patterned at least partially on top of the P1 pedestal and the first back gap layer and the region between the P1 pedestal and the first back gap layer, copper plated in the coil patterns, and a second insulation layer applied to fill the spaces in between the coil turns. The resulting structure is planarized via chemical mechanical polishing.

    摘要翻译： 在本发明的一个实施例中，写入头包括第一极P1，P1基座，电镀在第一极P1的顶部上的第一后部间隙层，留下P1基座和第一后部间隙层之间的区域，用于电镀 线圈，施加在P1基座上的第一绝缘层和第一后间隙层以及P1基座和第一后间隙层之间的区域。 写入头还包括线圈，其至少部分地形成在P1基座和第一后部间隙层的顶部上，以及P1基座和第一后部间隙层之间的区域，镀在线圈图案中的铜以及第二绝缘层 应用于填充线圈匝间的空间。 所得结构通过化学机械抛光进行平面化。

    Write head with self-cross biased pole for high speed magnetic recording
    7.
    发明授权
    Write head with self-cross biased pole for high speed magnetic recording 有权
    用自交偏置极头写入磁头用于高速磁记录

    公开(公告)号：US07889458B2

    公开(公告)日：2011-02-15

    申请号：US11598418

    申请日：2006-11-13

    申请人： Wen-Chien David Hsiao ,  Terence Tin-Lok Lam ,  Changqing Shi

    发明人： Wen-Chien David Hsiao ,  Terence Tin-Lok Lam ,  Changqing Shi

    IPC分类号： G11B5/31

    CPC分类号： G11B5/1278 ,  G11B5/187 ,  G11B2005/0013 ,  G11B2005/0032

    摘要： A magnetic write head having a magnetic cross yoke arranged to provide a cross magnetic field in a pole tip region of the magnetic head. The cross field, which is perpendicular to the magnetization of write pole, reduces the switching time of the write field, thereby increasing the speed with which the write head can record data. The write head can be a longitudinal write head or a perpendicular write head. In the case of a perpendicular write, the write head can include a write pole arranged to provide a magnetic write field that emits a magnetic field substantially perpendicular with an Air Bearing Surface (ABS). A magnetic cross yoke is formed having ends that are disposed at opposite sides of the pole tip region of the write pole.

    摘要翻译： 一种磁性写头，具有设置成在磁头的磁极尖端区域中提供交叉磁场的磁性交叉磁轭。 与写入磁极的磁化方向垂直的交叉场减少写入场的切换时间，从而提高写入头可以记录数据的速度。 写头可以是纵向写头或垂直写头。 在垂直写入的情况下，写入头可以包括写极，该写极被布置成提供发射与空气轴承表面（ABS）基本垂直的磁场的磁写入场。 形成磁性交叉轭，其端部设置在写入极的极尖区域的相对侧。

    Write head with self-cross biased pole for high speed magnetic recording
    8.
    发明申请
    Write head with self-cross biased pole for high speed magnetic recording 有权
    用自交偏置极头写入磁头用于高速磁记录

    公开(公告)号：US20080112078A1

    公开(公告)日：2008-05-15

    申请号：US11598418

    申请日：2006-11-13

    申请人： Wen-Chien David Hsiao ,  Terence Tin-Lok Lam ,  Changqing Shi

    发明人： Wen-Chien David Hsiao ,  Terence Tin-Lok Lam ,  Changqing Shi

    IPC分类号： G11B5/17

    CPC分类号： G11B5/1278 ,  G11B5/187 ,  G11B2005/0013 ,  G11B2005/0032

    摘要： A magnetic write head having a magnetic cross yoke arranged to provide a cross magnetic field in a pole tip region of the magnetic head. The cross field, which is perpendicular to the magnetization of write pole, reduces the switching time of the write field, thereby increasing the speed with which the write head can record data. The write head can be a longitudinal write head or a perpendicular write head. In the case of a perpendicular write, the write head can include a write pole arranged to provide a magnetic write field that emits a magnetic field substantially perpendicular with an Air Bearing Surface (ABS). A magnetic cross yoke is formed having ends that are disposed at opposite sides of the pole tip region of the write pole. A magnetic cross field that extends across the pole tip region of the write pole slightly alters the direction of the magnetization of the write pole. If the head is a longitudinal head, it can include first and second magnetic poles separated in the pole tip region by a write gap. The cross yoke can be arranged to produce a cross field that extends across the pole tip region defined by the first and second magnetic poles.

    摘要翻译： 一种磁性写头，具有设置成在磁头的磁极尖端区域中提供交叉磁场的磁性十字架。 与写入磁极的磁化方向垂直的交叉场减少写入场的切换时间，从而提高写入头可以记录数据的速度。 写头可以是纵向写头或垂直写头。 在垂直写入的情况下，写入头可以包括写极，该写极被布置成提供发射与空气轴承表面（ABS）基本垂直的磁场的磁写入场。 形成磁性交叉轭，其端部设置在写入极的极尖区域的相对侧。 延伸穿过写入极的极尖区域的磁交叉场稍微改变写入极的磁化方向。 如果头部是纵向头部，则可以包括通过写入间隙在磁极尖端区域中分离的第一和第二磁极。 交叉轭可以被布置成产生跨越由第一和第二磁极限定的极尖区域延伸的交叉场。

    Perpendicular magnetic recording head having a notched trailing shield
    10.
    发明授权
    Perpendicular magnetic recording head having a notched trailing shield 有权
    垂直磁记录头具有带槽口的后挡板

    公开(公告)号：US08111479B2

    公开(公告)日：2012-02-07

    申请号：US11877570

    申请日：2007-10-23

    申请人： Tsung Yuan Chen ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Vladimir Nikitin ,  Changqing Shi

    发明人： Tsung Yuan Chen ,  Wen-Chien David Hsiao ,  Yimin Hsu ,  Vladimir Nikitin ,  Changqing Shi

    IPC分类号： G11B5/127 ,  G11B5/23

    CPC分类号： G11B5/3116 ,  G11B5/1278

    摘要： A magnetic write head for perpendicular magnetic data recording having a trailing shield with a two step throat height. The trailing shield is formed over a non-magnetic bump that forms a notch in the leading edge of the trailing shield. This notch defines a first, smaller throat height closest to the write pole and a larger throat height away from the write pole. The smaller throat height near the write pole prevents excess magnetic flux from leaking to the write pole, thereby ensuring efficient strong write field. The larger trailing shield throat height away from the write pole prevents magnetic saturation of the trailing shield and also greatly facilitates manufacturing avoiding problems related to variations and deviations in manufacturing processes used to define the trailing shield.

    摘要翻译： 用于垂直磁数据记录的磁写头，具有具有两段喉部高度的后挡板。 后挡板形成在非磁性凸块上，该非磁性凸块在后挡板的前缘形成凹口。 该凹口限定了最靠近写入极的第一较小的喉部高度和远离写入极的较大的喉部高度。 写极附近的较小的喉部高度可防止过多的磁通量泄漏到写入极，从而确保有效的强写入场。 远离写入极的较大的后屏蔽喉部高度防止尾部屏蔽层的磁饱和，并且还极大地促进制造，避免与用于限定后屏蔽的制造工艺的变化和偏差相关的问题。