公开(公告)号：US08797686B1

公开(公告)日：2014-08-05

申请号：US12978242

申请日：2010-12-23

申请人： Zhigang Bai ,  Peng Luo ,  Shaoping Li ,  Ut Tran

发明人： Zhigang Bai ,  Peng Luo ,  Shaoping Li ,  Ut Tran

IPC分类号： G11B5/31 ,  G11B5/23

CPC分类号： G11B5/3163 ,  G11B5/1278 ,  G11B5/232 ,  G11B5/235 ,  G11B5/3116 ,  G11B5/315

摘要： A magnetic recording transducer for use in a data storage device includes a writer pole with a ABS surface, trailing edge bevel and a trailing shield. The effective throat height of the writer main pole is reduced by the use two gap layers between the writer main pole and the trailing shield. A first gap layer is on and in contact with the writer pole trailing surface, and a second gap layer is on a section of the first gap layer on the writer pole trailing edge bevel, from a point removed from the ABS surface and absent from a part on a section of the first gap layer on the writer pole trailing edge bevel nearest the ABS. A method of fabricating the transducer is also provided.

摘要翻译： 用于数据存储装置的磁记录传感器包括具有ABS表面的写入极，后缘斜面和后屏蔽。 通过使用写主机和后盾之间的两个间隙层，减小了作者主极的有效喉部高度。 第一间隙层与写入器极后表面接触并接触，并且第二间隙层位于写入器极后缘斜面上的第一间隙层的一部分上，从从ABS表面移除的点不在 部分位于最靠近ABS的作者极后缘的第一间隙层的一部分。 还提供了制造换能器的方法。

公开(公告)号：US08488272B1

公开(公告)日：2013-07-16

申请号：US13433587

申请日：2012-03-29

申请人： Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

发明人： Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

IPC分类号： G11B5/127

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A magnetic recording transducer includes a main pole including a nose portion, the nose portion terminating at an air-bearing surface (ABS). The magnetic recording transducer further includes at least one coil having a coil front distal from the ABS, and at least one side shield, the at least one side shield extending from at the ABS to not further than the coil front.

摘要翻译： 磁记录传感器包括一个主极，其包括一个鼻部，鼻部终止在空气轴承表面（ABS）处。 磁记录传感器还包括至少一个线圈，其具有远离ABS的线圈前端，以及至少一个侧屏蔽，所述至少一个侧屏蔽件从ABS延伸到不超过线圈前端。

公开(公告)号：US08514517B1

公开(公告)日：2013-08-20

申请号：US13174619

申请日：2011-06-30

申请人： Sharat Batra ,  Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

发明人： Sharat Batra ,  Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

IPC分类号： G11B5/17

CPC分类号： G11B5/17 ,  G11B5/1278 ,  G11B5/3123 ,  G11B5/3136 ,  G11B2005/0005

摘要： Systems and methods for providing hybrid coils for magnetic write heads used in disk drives are described. One such system includes a magnetic read/write head including a read transducer, and a write transducer including a pair of write poles, a hybrid coil including a first coil having a pancake coil configuration including at least one turn positioned between the pair of write poles, and a second coil having a helical coil configuration including a plurality of turns positioned between the pair of write poles, the second coil coupled to the first coil, where the at least one turn of the first coil is interleaved with the turns of the second coil.

摘要翻译： 描述了用于为磁盘驱动器中使用的写磁头提供混合线圈的系统和方法。 一种这样的系统包括包括读取换能器的磁读/写头和包括一对写磁极的写换能器，包括具有扁平线圈配置的第一线圈的混合线圈，该扁平线圈配置包括位于一对写极之间的至少一匝 以及具有螺旋线圈结构的第二线圈，其包括位于所述一对写入极之间的多个匝，所述第二线圈耦合到所述第一线圈，其中所述第一线圈的所述至少一个匝与所述第二线圈的匝相交叉 线圈

公开(公告)号：US08276258B1

公开(公告)日：2012-10-02

申请号：US12198657

申请日：2008-08-26

申请人： Ut Tran ,  Zhigang Bai

发明人： Ut Tran ,  Zhigang Bai

IPC分类号： G11B5/127 ,  H04R31/00

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

摘要： A method and system provide a magnetic transducer that includes an underlayer and a first nonmagnetic layer on the underlayer. The method and system include providing a first trench in the first nonmagnetic layer. The first trench has at least one edge corresponding to at least one side shield. The method and system also include providing a second nonmagnetic layer in the first trench and providing a second trench in the second nonmagnetic layer. The method and system include providing the main pole. At least part of the main pole resides in the second trench. The method and system further include removing at least a portion of the second nonmagnetic layer between the edge(s) and the main pole. The method and system also provide the side shield(s) in the first trench. The side shield(s) extend from at least an air-bearing surface location to not further than a coil front location.

摘要翻译： 一种方法和系统提供一种磁传感器，其包括底层上的底层和第一非磁性层。 该方法和系统包括在第一非磁性层中提供第一沟槽。 第一沟槽具有至少一个对应于至少一个侧面屏蔽的边缘。 该方法和系统还包括在第一沟槽中提供第二非磁性层，并在第二非磁性层中提供第二沟槽。 该方法和系统包括提供主极。 主极的至少一部分位于第二沟槽中。 所述方法和系统还包括在所述边缘和所述主极之间移除所述第二非磁性层的至少一部分。 该方法和系统还在第一沟槽中提供侧屏蔽。 侧护罩从至少一个空气轴承表面位置延伸到不超过线圈前部位置。

公开(公告)号：US08228633B1

公开(公告)日：2012-07-24

申请号：US12196131

申请日：2008-08-21

申请人： Ut Tran ,  Zhigang Bai

发明人： Ut Tran ,  Zhigang Bai

IPC分类号： G11B5/23

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

摘要： A method and system provide a magnetic transducer that includes an air-bearing surface (ABS). The magnetic transducer includes an underlayer and a main pole residing on the underlayer. The main pole includes a front and a rear. The front resides at the ABS, while the rear is distal from the ABS. The main pole also includes a first portion having a first magnetic moment and a second portion having a second magnetic moment. The first portion has a front face at the ABS and terminates between the ABS and the rear of the main pole. A part of the second portion resides on the first portion, while another part of the second portion resides between the first portion of the main pole and the rear of the main pole. The first magnetic moment is less than the second magnetic moment.

摘要翻译： 一种方法和系统提供包括空气轴承表面（ABS）的磁换能器。 磁换能器包括底层和位于底层上的主极。 主杆包括前部和后部。 前部位于ABS，而后部位于ABS的远端。 主极还包括具有第一磁矩的第一部分和具有第二磁矩的第二部分。 第一部分在ABS处具有前表面并且终止于ABS和主极的后部之间。 第二部分的一部分位于第一部分上，而第二部分的另一部分位于主极的第一部分和主极的后部之间。 第一个磁矩小于第二个磁矩。

公开(公告)号：US08786983B1

公开(公告)日：2014-07-22

申请号：US13532658

申请日：2012-06-25

申请人： Feng Liu ,  Zhanjie Li ,  Zhigang Bai ,  Ut Tran ,  Kevin K. Lin

发明人： Feng Liu ,  Zhanjie Li ,  Zhigang Bai ,  Ut Tran ,  Kevin K. Lin

IPC分类号： G11B5/17

CPC分类号： G11B5/17 ,  G11B5/3123

摘要： A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a write pole and at least one coil. The write pole has a pole tip and a yoke. The coil(s) energize the write pole. The coil(s) include a plurality of turns a first distance from the pole and at least one additional turn a second distance from the pole. The first distance is different from the second distance. The at least one additional turn extends over at least part of two of the plurality of turns, has a length in a stripe height direction perpendicular to the ABS and has a height in a down track direction. The length is greater than the height.

摘要翻译： 一种方法和系统提供具有空气轴承表面（ABS）的磁换能器。 磁换能器包括写极和至少一个线圈。 写极具有极尖和轭。 线圈使写入极点通电。 所述线圈包括与所述极点第一距离的多个匝和距离所述极点至少一个第二距离的至少一个附加匝。 第一距离与第二距离不同。 所述至少一个附加转弯在所述多个匝中的两个匝中的至少一部分上延伸，具有垂直于所述ABS的条带高度方向上的长度，并且具有向下轨道方向的高度。 长度大于高度。

公开(公告)号：US08797684B1

公开(公告)日：2014-08-05

申请号：US13331020

申请日：2011-12-20

申请人： Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

发明人： Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

IPC分类号： G11B5/17

CPC分类号： G11B5/3123

摘要： A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a write pole and a coil. The write pole has a pole tip and a yoke. The coil energizes the write pole and includes a plurality of turns. A turn of the plurality of turns has a first portion and a second portion. The first portion has a first length in a stripe height direction substantially perpendicular to the ABS. The second portion has a second length in the stripe height direction. The second length is greater than the first length and extends at least to at least one adjacent turn.

摘要翻译： 一种方法和系统提供具有空气轴承表面（ABS）的磁换能器。 磁换能器包括写极和线圈。 写极具有极尖和轭。 线圈激励写入极并且包括多个匝。 多个匝的转动具有第一部分和第二部分。 第一部分具有基本上垂直于ABS的条带高度方向上的第一长度。 第二部分在条带高度方向上具有第二长度。 第二长度大于第一长度并至少延伸至至少一个相邻的匝。

公开(公告)号：US08576517B1

公开(公告)日：2013-11-05

申请号：US13597091

申请日：2012-08-28

申请人： Ut Tran ,  Zhigang Bai

发明人： Ut Tran ,  Zhigang Bai

IPC分类号： G11B5/127

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

摘要： A magnetic recording transducer is provided. The magnetic recording transducer comprises a main pole including a nose portion, the nose portion terminating at an air-bearing surface (ABS). The magnetic recording transducer further comprises at least one coil having a coil front distal from the ABS, and at least one side shield. The at least one side shield extends from at the ABS to not further than the coil front.

摘要翻译： 提供磁记录传感器。 磁记录传感器包括一个主极，它包括一个鼻部，鼻部终止于空气轴承表面（ABS）。 磁记录传感器还包括至少一个具有远离ABS的线圈前端的线圈和至少一个侧屏蔽。 所述至少一个侧护罩从ABS处延伸到不超过线圈前端。

公开(公告)号：US08339738B1

公开(公告)日：2012-12-25

申请号：US13528007

申请日：2012-06-20

申请人： Ut Tran ,  Zhigang Bai

发明人： Ut Tran ,  Zhigang Bai

IPC分类号： G11B5/127

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

摘要： A method for fabricating a magnetic transducer having an air-bearing surface (ABS) is provided. The method comprises providing an underlayer, and providing a main pole residing on the underlayer and having a front and a rear. The step of providing a main pole further includes providing a first portion having a first magnetic moment, the first portion having a front face at the ABS and terminating between the ABS and the rear of the main pole, and providing a second portion having a second magnetic moment. A part of the second portion resides on the first portion, and another part of the second portion resides between the first portion of the main pole and the rear of the main pole. The first magnetic moment is less than the second magnetic moment.

摘要翻译： 提供一种制造具有空气轴承表面（ABS）的磁换能器的方法。 该方法包括提供底层，并提供驻留在底层上并具有前后的主极。 提供主极的步骤还包括提供具有第一磁矩的第一部分，第一部分在ABS处具有前表面并终止于ABS和主极的后部之间，并且提供具有第二磁体的第二部分 磁力矩 第二部分的一部分位于第一部分上，第二部分的另一部分位于主极的第一部分和主极的后部之间。 第一个磁矩小于第二个磁矩。

公开(公告)号：US08166631B1

公开(公告)日：2012-05-01

申请号：US12199624

申请日：2008-08-27

申请人： Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

发明人： Ut Tran ,  Zhigang Bai ,  Kevin K. Lin

IPC分类号： G11B5/17 ,  H04R31/00

CPC分类号： G11B5/315 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3163 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method provides a magnetic transducer that includes an underlayer and a nonmagnetic layer on the underlayer. The method includes providing a plurality of trenches in the nonmagnetic layer. A first trench of corresponds to a main pole, while at least one side trench corresponds to at least one side shield. The method also includes providing mask covering the side trench(es) and providing the main pole. At least a portion of the main pole resides in the first trench. The method also includes removing at least a portion of the nonmagnetic layer residing between the side trench(es) and the main pole. The method also includes providing at least one side shield. The shield(s) extend from at least an air-bearing surface location to not further than a coil front location.

摘要翻译： 一种方法提供一种磁传感器，其包括底层上的底层和非磁性层。 该方法包括在非磁性层中提供多个沟槽。 第一沟槽对应于主极，而至少一个侧沟槽对应于至少一个侧屏蔽。 该方法还包括提供覆盖侧沟槽并提供主极的掩模。 主极的至少一部分位于第一沟槽中。 该方法还包括去除位于侧沟槽和主极之间的非磁性层的至少一部分。 该方法还包括提供至少一个侧屏蔽。 屏蔽件至少从空气轴承表面位置延伸到不超过线圈前部位置。