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1. 发明授权

US08786983B1 Magnetic writer having a low aspect ratio two layer coil 有权
标题翻译：具有低纵横比的两层线圈的磁性写入器
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。

2. 发明授权

US08488272B1 Magnetic recording transducer having side shields 有权
标题翻译：具有侧面屏蔽的磁记录传感器
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。

3. 发明授权

US08514517B1 Systems and methods for providing hybrid coils for magnetic write heads 有权
标题翻译：用于为磁写头提供混合线圈的系统和方法
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

4. 发明授权

US08797684B1 Magnetic writer configured for high data rate recording 有权
标题翻译：磁记录器配置为高数据速率记录
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。

5. 发明授权

US08166631B1 Method for fabricating a magnetic recording transducer having side shields 有权
标题翻译：制造具有侧屏蔽的磁记录换能器的方法
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。

6. 发明授权

US09053715B1 System for providing a transducer having a split main pole 有权
标题翻译：用于提供具有分裂主极的换能器的系统
公开(公告)号：US09053715B1
公开(公告)日：2015-06-09
申请号：US13075070
申请日：2011-03-29
申请人： Lisha Wang , Tao Pan , Sining Mao , Zhigang Bai , Feng Liu , Zhanjie Li
发明人： Lisha Wang , Tao Pan , Sining Mao , Zhigang Bai , Feng Liu , Zhanjie Li
IPC分类号： G11B5/147 , G11B5/31
CPC分类号： G11B5/3116 , G11B5/1278 , Y10T29/49044
摘要： A method and system for providing a magnetic recording head is described. The magnetic recording head has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The magnetic recording head includes a main pole, at least one auxiliary pole, a nonmagnetic spacer, and at least one coil. The main pole includes a first main pole piece and a second main pole piece. The first main pole piece includes a pole tip occupying a portion of the ABS and a back edge distal from the ABS. The second main pole piece has a front surface. The auxiliary pole(s) have a front recessed from the ABS and are magnetically coupled with the main pole. The nonmagnetic spacer is between the back edge of the first main pole piece and the front surface of the second main pole piece. The coil(s) are for energizing the main pole.
摘要翻译：描述了一种用于提供磁记录头的方法和系统。磁记录头具有在使用期间被配置为驻留在介质附近的空气轴承表面（ABS）。磁记录头包括主极，至少一个辅助极，非磁性间隔物和至少一个线圈。主极包括第一主极片和第二主极片。第一主极件包括占据ABS的一部分的极尖和远离ABS的后边缘。第二主极片具有前表面。辅助极具有从ABS凹入的前部并与主极磁耦合。非磁性间隔物位于第一主极片的后边缘和第二主极片的前表面之间。线圈用于激励主极。

7. 发明授权

US08405930B1 Method and system for providing a transducer having dual, ABS recessed auxiliary poles on opposite sides of a main pole with non-magnetic spacer adjoining back portion of main pole and positioned between auxiliary poles 有权
标题翻译：用于提供具有在主极的相对侧上具有双ABS ABS辅助极的传感器的方法和系统，其具有邻接主极的后部并且位于辅助极之间的非磁性间隔
公开(公告)号：US08405930B1
公开(公告)日：2013-03-26
申请号：US13070279
申请日：2011-03-23
申请人： Zhanjie Li , Zhigang Bai , Feng Liu , Yugang Wang
发明人： Zhanjie Li , Zhigang Bai , Feng Liu , Yugang Wang
IPC分类号： G11B5/147
CPC分类号： G11B5/3116 , G11B5/1278 , Y10T29/49044
摘要： A method and system for providing a magnetic recording head is described. The magnetic recording head has an ABS configured to reside in proximity to a media during use. The magnetic recording head includes a main pole, first and second auxiliary poles, a backgap, a nonmagnetic spacer, and at least one coil. The main pole includes a pole tip occupying a portion of the ABS and a back edge distal from the ABS. Each auxiliary pole has a front recessed from the ABS and a back portion. A portion of the main pole distal from the ABS resides between the auxiliary poles. The auxiliary poles are magnetically coupled with the main pole. The backgap magnetically couples the back portions of the auxiliary poles. The nonmagnetic spacer adjoins the back edge of the main pole and is between the auxiliary poles. The coil(s) energize the main pole.
摘要翻译：描述了一种用于提供磁记录头的方法和系统。磁记录头具有被配置为在使用期间驻留在介质附近的ABS。磁记录头包括主极，第一和第二辅助极，后隙，非磁性间隔物和至少一个线圈。主杆包括占据ABS的一部分的极尖和远离ABS的后边缘。每个辅助杆具有从ABS的前凹部和后部。远离ABS的主极的一部分位于辅助极之间。辅助极与主极磁耦合。后隙磁耦合辅助杆的后部。非磁性隔离物邻接主极的后边缘并在辅助极之间。线圈给主极通电。

8. 发明授权

US08837081B1 Laminated touchdown sensor for hard disk drives 有权
标题翻译：用于硬盘驱动器的层压触地传感器
公开(公告)号：US08837081B1
公开(公告)日：2014-09-16
申请号：US13312107
申请日：2011-12-06
申请人： Chengtao R. Yu , Dehua Han , Ying Hong , Feng Liu , Laurence L. Chen , Zhanjie Li , Zhigang Bai , Yu Lo , Yunfei Ding
发明人： Chengtao R. Yu , Dehua Han , Ying Hong , Feng Liu , Laurence L. Chen , Zhanjie Li , Zhigang Bai , Yu Lo , Yunfei Ding
IPC分类号： G11B5/127
CPC分类号： G11B5/6076
摘要： A method and system provide a touchdown sensor for use in disk drive. The touchdown sensor includes a sensor layer including a plurality of magnetic layers interleaved with at least one nonmagnetic layer. The plurality of magnetic layers are magnetically coupled and single domain. Further, the sensor has a temperature coefficient of resistivity (TCR) of at least 0.15%/° C.
摘要翻译：一种方法和系统提供用于磁盘驱动器的触地传感器。触地传感器包括传感器层，传感器层包括与至少一个非磁性层交错的多个磁性层。多个磁性层是磁耦合的和单一的结构域。此外，传感器的电阻率（TCR）的温度系数至少为0.15％/℃。

9. 发明授权

US08547659B1 System for providing a transducer having a main coil and an additional coil separated from the main pole by a write shield 有权
标题翻译：用于提供具有主线圈和通过写屏蔽与主极分离的附加线圈的换能器的系统
公开(公告)号：US08547659B1
公开(公告)日：2013-10-01
申请号：US13103872
申请日：2011-05-09
申请人： Zhigang Bai , Zhanjie Li , Sharat Batra
发明人： Zhigang Bai , Zhanjie Li , Sharat Batra
IPC分类号： G11B5/127 , G11B5/17
CPC分类号： G11B5/3116 , G11B5/17 , G11B5/3123
摘要： A method and system for providing a magnetic recording head is described. The magnetic recording head has an air-bearing surface (ABS) configured to reside in proximity to a media during use. The head includes a first coil, a second coil, a main pole, and a third coil. The first coil has a first plurality of turns and is configured to carry a first write current in a first direction. The second coil has a second plurality of turns and is configured to carry a second write current in a second direction. The main pole is between the first coil and the second coil. The third coil has a third plurality of turns configured to carry a third write current in a third direction.
摘要翻译：描述了一种用于提供磁记录头的方法和系统。磁记录头具有在使用期间被配置为驻留在介质附近的空气轴承表面（ABS）。头包括第一线圈，第二线圈，主极和第三线圈。第一线圈具有第一多个匝并且被配置为沿第一方向承载第一写入电流。第二线圈具有第二多个匝，并被配置为在第二方向上承载第二写入电流。主极在第一线圈和第二线圈之间。第三线圈具有构造为在第三方向上承载第三写入电流的第三多个匝。

10. 发明授权

US08276258B1 Method for fabricating a magnetic recording transducer 有权
标题翻译：磁记录传感器的制造方法
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。

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