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    Perpendicular magnetic recording writer main pole having imbedded non-magnetic core and de-coupled pole tip
    1.
    发明申请
    Perpendicular magnetic recording writer main pole having imbedded non-magnetic core and de-coupled pole tip 有权
    垂直磁记录器主极嵌有非磁芯和脱耦极头

    公开(公告)号：US20090168237A1

    公开(公告)日：2009-07-02

    申请号：US12005786

    申请日：2007-12-27

    申请人： Wen-Chien David Hsiao ,  Ming Jiang ,  Changqing Shi

    发明人： Wen-Chien David Hsiao ,  Ming Jiang ,  Changqing Shi

    IPC分类号： G11B5/127 ,  B44C1/22

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

    摘要： Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The structure provides a pole tip separated from a rear pole by a non-magnetic separation layer located adjacent the flare point. The rear pole contains an imbedded non-magnetic layer. The separated pole tip and imbedded layer aid in the high data rate recording as well as the erasure performance of the write pole structure. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the placement of the throat height of the shield is self aligned to the flare point of the write pole.

    摘要翻译： 公开了用于制造薄膜垂直记录写头的方法和结构。 该结构提供了通过位于火炬点附近的非磁性分离层与后极分离的极尖。 后极包含嵌入的非磁性层。 分离的极尖和嵌入层有助于高数据速率记录以及写柱结构的擦除性能。 该制造涉及沉积具有相互高蚀刻选择性的两个不同的氧化物层。 该特征允许构建写极结构，其中轨道宽度独立于耀斑点的位置。 该过程还产生一种结构，其中屏蔽件的喉部高度的放置与写入极的扩张点自对准。

    Perpendicular magnetic recording writer main pole having imbedded non-magnetic core and de-coupled pole tip
    2.
    发明授权
    Perpendicular magnetic recording writer main pole having imbedded non-magnetic core and de-coupled pole tip 有权
    垂直磁记录器主极嵌有非磁芯和脱耦极头

    公开(公告)号：US08179634B2

    公开(公告)日：2012-05-15

    申请号：US12005786

    申请日：2007-12-27

    申请人： Wen-Chien David Hsiao ,  Ming Jiang ,  Changqing Shi

    发明人： Wen-Chien David Hsiao ,  Ming Jiang ,  Changqing Shi

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

    摘要： Methods and structures for the fabrication of a thin film, perpendicular recording write head are disclosed. The structure provides a pole tip separated from a rear pole by a non-magnetic separation layer located adjacent the flare point. The rear pole contains an imbedded non-magnetic layer. The separated pole tip and imbedded layer aid in the high data rate recording as well as the erasure performance of the write pole structure. The fabrication involves the deposition of two different oxide layers which have mutually high etch selectivities. This characteristic allows a write pole structure to be built wherein the track width is independent of the location of the flare point. The process also produces a structure wherein the placement of the throat height of the shield is self aligned to the flare point of the write pole.

    摘要翻译： 公开了用于制造薄膜垂直记录写头的方法和结构。 该结构提供了通过位于火炬点附近的非磁性分离层与后极分离的极尖。 后极包含嵌入的非磁性层。 分离的极尖和嵌入层有助于高数据速率记录以及写柱结构的擦除性能。 该制造涉及沉积具有相互高蚀刻选择性的两个不同的氧化物层。 该特征允许构建写极结构，其中轨道宽度独立于耀斑点的位置。 该过程还产生一种结构，其中屏蔽件的喉部高度的放置与写入极的扩张点自对准。

    Write head with self-cross biased pole for high speed magnetic recording
    3.
    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
    4.
    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
    6.
    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。

    PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A SHORT THROAT HEIGHT WRAP AROUND TRAILING SHIELD
    8.
    发明申请
    PERPENDICULAR MAGNETIC RECORDING HEAD HAVING A SHORT THROAT HEIGHT WRAP AROUND TRAILING SHIELD 有权
    具有短暂的高度的磁带记录头

    公开(公告)号：US20090103211A1

    公开(公告)日：2009-04-23

    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 ,  G11B5/11

    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 oft 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，并且还极大地有助于制造，避免与用于限定后屏蔽的制造工艺中的变化和偏差相关的问题。

    Method and system for calibrating an electronic lapping guide for a beveled pole in a magnetic recording transducer
    10.
    发明授权
    Method and system for calibrating an electronic lapping guide for a beveled pole in a magnetic recording transducer 有权
    用于校准磁记录传感器中斜面极的电子研磨导轨的方法和系统

    公开(公告)号：US08291743B1

    公开(公告)日：2012-10-23

    申请号：US12473159

    申请日：2009-05-27

    申请人： Changqing Shi ,  Ming Jiang

    发明人： Changqing Shi ,  Ming Jiang

    IPC分类号： G01N37/00 ,  G11B27/36

    CPC分类号： G11B5/3166 ,  G11B5/3169

    摘要： A method and system for calibrating an electronic lapping guide (ELG) for transducer(s) having an ABS and a magnetic structure are described. The magnetic structure has a desired thickness, a bevel, and a flare point a distance from the ABS. The method and system include providing at least three ELGs. A first ELG has first and second edges first and second distances from the ABS. A second ELG has third and fourth edges third and second distances from the ABS. A third ELG has fifth and sixth edges fourth and second distances from the ABS. The first, third, and fourth distances correspond to a stripe height and an offset. The first, third, and fourth distance and/or the second distance corresponds to an intersection between the bevel and the desired thickness. The method and system also include measuring resistances of the ELGs, and calibrating the ELG(s) utilizing the offset and resistances.

    摘要翻译： 描述了用于校准具有ABS和磁性结构的换能器的电子研磨导轨（ELG）的方法和系统。 磁性结构具有所需的厚度，斜面和距离ABS的距离的火炬点。 该方法和系统包括提供至少三个ELG。 第一ELG具有第一和第二边缘和ABS之间的第二距离。 第二ELG具有距ABS的第三和第四边缘第三和第二距离。 第三ELG具有从ABS的第五和第六边缘第四和第二距离。 第一，第三和第四距离对应于条纹高度和偏移。 第一，第三和第四距离和/或第二距离对应于斜面和期望厚度之间的交点。 该方法和系统还包括测量ELG的电阻，并利用偏移和电阻校准ELG。