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1. 发明授权

US08582241B1 Method and system for providing a magnetic transducer having a high moment bilayer magnetic seed layer for a trailing shield 有权
标题翻译：用于提供具有用于后盾的高力矩双层磁性种子层的磁换能器的方法和系统
公开(公告)号：US08582241B1
公开(公告)日：2013-11-12
申请号：US13479095
申请日：2012-05-23
申请人： Chengtao R. Yu , Dehua Han , Ying Hong , Feng Liu , Bo Zhang , Tao Pan
发明人： Chengtao R. Yu , Dehua Han , Ying Hong , Feng Liu , Bo Zhang , Tao Pan
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A method and system for providing a magnetic read transducer is described. The magnetic recording transducer includes a write pole, a nonmagnetic gap, a magnetic seed layer, a trailing shield and coil(s) that energize the write pole. The write pole is configured to write to a media. The nonmagnetic gap is between the write pole and the magnetic seed layer. The magnetic seed layer includes a high moment layer and a magnetic buffer layer. The high moment layer is between the nonmagnetic gap and the magnetic buffer layer. The high moment layer has a saturation magnetization greater than 2.3 T and a first corrosion potential. The magnetic buffer layer has a second corrosion potential less than the first corrosion potential. The magnetic seed layer is between the trailing shield and the nonmagnetic gap layer. The magnetic buffer layer is between the trailing shield and the high moment layer.
摘要翻译：描述了一种用于提供磁读取换能器的方法和系统。磁记录换能器包括对写磁极通电的写磁极，非磁性间隙，磁性种子层，后屏蔽和线圈。写极被配置为写入介质。非磁性间隙位于写极和磁性种子层之间。磁性种子层包括高力矩层和磁性缓冲层。高磁矩层位于非磁性间隙和磁性缓冲层之间。高力矩层具有大于2.3T的饱和磁化强度和第一腐蚀电位。磁缓冲层具有小于第一腐蚀电位的第二腐蚀电位。磁性种子层位于尾部屏蔽和非磁性间隙层之间。磁缓冲层位于后盾和高力矩层之间。

2. 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％/℃。

3. 发明授权

US08724259B1 Conformal high moment side shield seed layer for perpendicular magnetic recording writer 有权
标题翻译：用于垂直磁记录刻录机的保形高力侧屏蔽种子层
公开(公告)号：US08724259B1
公开(公告)日：2014-05-13
申请号：US13493903
申请日：2012-06-11
申请人： Feng Liu , Dehua Han , Yugang Wang , Zhigang Bai , Tao Pan
发明人： Feng Liu , Dehua Han , Yugang Wang , Zhigang Bai , Tao Pan
IPC分类号： G11B5/147
CPC分类号： G11B5/11 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/315 , G11B5/4886
摘要： A perpendicular magnetic recording writer for use in a data storage device, the recording transducer has a magnetic writer pole, a pole tip facing an air bearing surface (ABS). The pole tip has a pole face, leading side wall, a trailing side wall, a first side wall and a second side wall. A trailing side wall nonmagnetic gap layer on the trailing side wall, a first side wall nonmagnetic gap layer deposited on the first side wall, and a second side wall nonmagnetic gap layer deposited on the second side wall. A high magnetic moment seed layer is deposited on the trailing side wall nonmagnetic gap layer, the first side wall nonmagnetic gap layer, and the second side wall nonmagnetic gap layer. In other aspects of the invention shields are provided that have magnetic moments less than the magnetic moment of the seed layers.
摘要翻译：一种在数据存储装置中使用的垂直磁记录刻录机，记录换能器具有磁写入极，极尖面向空气轴承表面（ABS）。极尖具有极面，前侧壁，后侧壁，第一侧壁和第二侧壁。在后侧壁上的后侧壁非磁性间隙层，沉积在第一侧壁上的第一侧壁非磁性间隙层和沉积在第二侧壁上的第二侧壁非磁性间隙层。在后侧壁非磁性间隙层，第一侧壁非磁性间隙层和第二侧壁非磁性间隙层上沉积高磁矩种子层。在本发明的其它方面，提供了具有小于种子层的磁矩的磁矩的屏蔽。

4. 发明授权

US09123359B1 Magnetic recording transducer with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields and method of fabrication 有权
标题翻译：磁记录传感器，具有溅射反铁磁耦合三层电镀铁磁屏蔽和制造方法
公开(公告)号：US09123359B1
公开(公告)日：2015-09-01
申请号：US12976916
申请日：2010-12-22
申请人： Dehua Han , Ming Sun , Feng Liu , Jinqiu Zhang , Shaoping Li , Lieping Zhong , Xiaoqi Liu , Tao Pan
发明人： Dehua Han , Ming Sun , Feng Liu , Jinqiu Zhang , Shaoping Li , Lieping Zhong , Xiaoqi Liu , Tao Pan
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/315 , G11B5/3163
摘要： A magnetic recording transducer for use in a data storage device is described. The transducer has a main writer pole and magnetic shields adjacent to the main writer pole. The magnetic shields include a first plated soft ferromagnetic layer, a second plated soft ferromagnetic layer, and an antiferromagnetic coupling (AFC) trilayer between the first plated soft ferromagnetic layer and the second plated soft ferromagnetic layer. The AFC trilayer includes a first AFC layer of sputtered ferromagnetic material; a second AFC layer of a nonmagnetic antiferromagnetic exchange material, and a third AFC layer of sputtered ferromagnetic material. Shields with AFC trilayers in leading, side, and/or trailing shields, as well as between shields are provided. A method of fabricating is also provided.
摘要翻译：描述了用于数据存储装置的磁记录传感器。传感器有一个主要的写入极和磁屏蔽，靠近主要的写入极。磁屏蔽包括第一镀层软铁磁层，第二电镀软铁磁层和第一镀层软铁磁层与第二电镀软铁磁层之间的反铁磁耦合（AFC）三层。 AFC三层包括溅射铁磁材料的第一AFC层; 非磁性反铁磁交换材料的第二AFC层和溅射的铁磁材料的第三AFC层。提供了前导，侧面和/或尾部屏蔽以及屏蔽之间的AFC三层屏蔽罩。还提供了一种制造方法。

5. 发明授权

US08582238B1 Systems and methods for providing perpendicular magnetic writers having gradient magnetic moment side shields 有权
标题翻译：用于提供具有梯度磁矩侧屏蔽的垂直磁性写入器的系统和方法
公开(公告)号：US08582238B1
公开(公告)日：2013-11-12
申请号：US13279105
申请日：2011-10-21
申请人： Feng Liu , Zhigang Bai , Dehua Han , Ming Sun , Yugang Wang , Tao Pan
发明人： Feng Liu , Zhigang Bai , Dehua Han , Ming Sun , Yugang Wang , Tao Pan
IPC分类号： G11B5/33
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： Systems and methods for providing perpendicular magnetic writers having gradient magnetic moment side shields are provided. In one case, the system includes a pole having a leading edge and trailing edge, a leading shield positioned closer to the leading edge than the trailing edge, the leading shield having a leading shield moment, a trailing shield positioned closer to the trailing edge than the leading edge, the trailing shield having a trailing shield moment greater than the leading shield moment, and a side shield positioned along side of the pole, the side shield including a gradient magnetic moment progressing from a first side shield moment to a second side shield moment, where the first side shield moment is about equal to the leading shield moment, and where the second side shield moment is about equal to the trailing shield moment and positioned closer to the trailing shield than the leading shield.
摘要翻译：提供了用于提供具有梯度磁矩侧屏蔽的垂直磁性写入器的系统和方法。在一种情况下，系统包括具有前缘和后缘的杆，位于比后缘更靠近前缘的前护罩，前护罩具有前屏蔽力矩，位于靠近后缘的后挡板比所述前缘，所述后挡板具有大于所述前屏蔽力矩的后屏蔽力矩，以及沿所述杆的侧面定位的侧屏蔽，所述侧屏蔽包括从第一侧屏蔽力矩到第二侧屏蔽的梯度磁矩其中第一侧面屏蔽力矩大约等于前导屏蔽力矩，并且其中第二侧面屏蔽力矩大约等于尾部屏蔽力矩，并且位于比前导屏蔽件更靠近尾部屏蔽件的位置。

6. 发明授权

US08441756B1 Method and system for providing an antiferromagnetically coupled writer 有权
标题翻译：提供反铁磁耦合作者的方法和系统
公开(公告)号：US08441756B1
公开(公告)日：2013-05-14
申请号：US12970423
申请日：2010-12-16
申请人： Ming Sun , Dehua Han , Jose A. Medina , Ming Jiang , Ying Hong , Feng Liu , Jian X. Shen
发明人： Ming Sun , Dehua Han , Jose A. Medina , Ming Jiang , Ying Hong , Feng Liu , Jian X. Shen
IPC分类号： G11B5/39
CPC分类号： G11B5/187 , G11B5/3116 , G11B5/3163
摘要： A method and system for fabricating a magnetic transducer are described. The magnetic transducer includes a pole and a nonmagnetic intermediate layer adjacent to the pole. The pole has a paddle and a pole tip including a plurality of sidewalls. The pole includes a first magnetic pole layer, at least one antiferromagnetic coupling (AFC) structure on the first magnetic pole layer, and a second magnetic pole layer on the AFC structure(s). At least a portion of the first magnetic pole layer resides on the sidewalls of the pole tip. The paddle has a paddle width in a track width direction. The pole tip has a pole tip width in a track width direction that is less than the paddle width.
摘要翻译：描述了用于制造磁换能器的方法和系统。磁换能器包括极和邻近极的非磁性中间层。极具有桨和包括多个侧壁的极尖。所述极包括第一磁极层，在所述第一磁极层上的至少一个反铁磁耦合（AFC）结构和所述AFC结构上的第二磁极层。第一磁极层的至少一部分位于极尖的侧壁上。桨叶在轨道宽度方向上具有桨叶宽度。极尖具有小于桨宽度的轨道宽度方向上的极尖宽度。

7. 发明授权

US08520337B1 Perpendicular magnetic recording writer pole with leading and trailing bevel side wall angles at air bearing surface 有权
标题翻译：垂直磁记录笔杆，空气轴承表面具有前后斜面侧壁角
公开(公告)号：US08520337B1
公开(公告)日：2013-08-27
申请号：US13436712
申请日：2012-03-30
申请人： Feng Liu , Zhigang Bai , Yugang Wang , Jinqiu Zhang , Ying Hong , Tao Pan
发明人： Feng Liu , Zhigang Bai , Yugang Wang , Jinqiu Zhang , Ying Hong , Tao Pan
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A perpendicular magnetic recording transducer with leading and trailing bevel side wall angles at air bearing surface for use in a data storage device is provided. The transducer includes a magnetic writer pole having a pole tip facing an air bearing surface (ABS). The pole tip includes a pole tip face having a leading edge, a trailing edge, a first side wall, and a second side wall. The first side wall includes a first side wall section adjoining the leading edge and a second side wall section adjoining the trailing edge. The first side wall section is at a first angle measured from a perpendicular center line dividing the trailing edge. The second side wall section is at a second angle measured from a perpendicular center line dividing the trailing edge. The second angle is greater than three degrees. The first angle is greater than the second angle.
摘要翻译：提供了一种用于数据存储装置的在空气轴承表面具有前后倾斜侧壁角度的垂直磁记录传感器。换能器包括具有面向空气轴承表面（ABS）的极尖的磁性写入极。极尖包括具有前缘，后缘，第一侧壁和第二侧壁的极尖端面。第一侧壁包括邻接前缘的第一侧壁部分和与后缘相邻的第二侧壁部分。第一侧壁部分是从分割后缘的垂直中心线测量的第一角度。第二侧壁部分是从分割后缘的垂直中心线测量的第二角度。第二个角度大于三度。第一角度大于第二角度。

8. 发明授权

US08705205B1 Magnetic recording head having a dual sidewall angle 有权
标题翻译：具有双重侧壁角度的磁记录头
公开(公告)号：US08705205B1
公开(公告)日：2014-04-22
申请号：US13169685
申请日：2011-06-27
申请人： Yunfei Li , Lijie Guan , Ying Hong , Zhigang Bai , Jinqiu Zhang , Yugang Wang , Feng Liu , Tao Pan
发明人： Yunfei Li , Lijie Guan , Ying Hong , Zhigang Bai , Jinqiu Zhang , Yugang Wang , Feng Liu , Tao Pan
IPC分类号： G11B5/127
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A magnetic transducer having an air-bearing surface (ABS) is described. The magnetic transducer includes a pole and at least one coil for energizing the pole. The pole has a pole tip proximate to the ABS, a yoke distal from the ABS, and a bottom surface including a bottom bevel. At least the yoke includes at least one sidewall having a first angle and a second angle. The first angle is between the bottom surface and the at least one sidewall. The second angle is a constant distance along the at least one sidewall from the first angle.
摘要翻译：描述了具有空气轴承表面（ABS）的磁换能器。磁换能器包括极和用于激励极的至少一个线圈。杆具有靠近ABS的极尖端，远离ABS的轭，以及包括底部斜面的底表面。至少轭包括具有第一角度和第二角度的至少一个侧壁。第一角度在底表面和至少一个侧壁之间。第二角度是从第一角度沿着至少一个侧壁的恒定距离。

9. 发明授权

US08760819B1 Magnetic recording sensor with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields 有权
标题翻译：磁性记录传感器与电镀铁磁屏蔽之间的溅射反铁磁耦合三层
公开(公告)号：US08760819B1
公开(公告)日：2014-06-24
申请号：US12978145
申请日：2010-12-23
申请人： Feng Liu , Dehua Han , Ming Sun , Yimin Guo
发明人： Feng Liu , Dehua Han , Ming Sun , Yimin Guo
IPC分类号： G11B5/11 , G11B5/33
CPC分类号： G11B5/3912
摘要： A magnetic recording sensor for use in a data storage device is described. The sensor has a magnetoresistive sensing element and magnetic shields shielding the magnetoresistive sensing element. The magnetic shields include a first plated soft ferromagnetic layer, a second plated soft ferromagnetic layer, and an antiferromagnetic coupling (AFC) trilayer between the first plated soft ferromagnetic layer and the second plated soft ferromagnetic layer. The AFC trilayer includes a first AFC layer of sputtered ferromagnetic material; a second AFC layer of a nonmagnetic antiferromagnetic exchange material, and a third AFC layer of sputtered ferromagnetic material. Shields with AFC trilayers in bottom, side, and/or top shields, and well as between shields are provided. A method of fabricating is also provided.
摘要翻译：描述了用于数据存储装置的磁记录传感器。传感器具有磁阻感测元件和屏蔽磁阻感测元件的磁屏蔽。磁屏蔽包括第一镀层软铁磁层，第二电镀软铁磁层和第一镀层软铁磁层与第二电镀软铁磁层之间的反铁磁耦合（AFC）三层。 AFC三层包括溅射铁磁材料的第一AFC层; 非磁性反铁磁交换材料的第二AFC层和溅射的铁磁材料的第三AFC层。提供了在底部，侧面和/或顶部屏蔽以及屏蔽之间的AFC三层玻璃的屏蔽。还提供了一种制造方法。

10. 发明授权

US08792208B1 Method for providing side shields having non-conformal regions for a magnetic recording transducer 有权
标题翻译：用于提供具有用于磁记录换能器的非共形区域的侧屏蔽的方法
公开(公告)号：US08792208B1
公开(公告)日：2014-07-29
申请号：US13481158
申请日：2012-05-25
申请人： Feng Liu , Yugang Wang , Zhigang Bai , Hongzhou Jiang , Tao Pan , Shaoping Li
发明人： Feng Liu , Yugang Wang , Zhigang Bai , Hongzhou Jiang , Tao Pan , Shaoping Li
IPC分类号： G11B5/11
CPC分类号： G11B5/3163 , G11B5/1278 , G11B5/3116 , G11B5/315
摘要： A method and system provide a magnetic recording transducer having air-bearing surface (ABS). The magnetic recording transducer includes a pole, a side shield, a nonmagnetic gap between the side shield and the pole and at least one coil for energizing the pole. The pole has a pole tip proximate to the ABS. The side shield includes at least one nonconformal portion that extends from a throat height in a stripe height direction perpendicular to the ABS and is nonconformal with the pole. The spacing between the nonconformal portion(s) of the side shield and the pole varies based on a distance from the ABS.
摘要翻译：一种方法和系统提供具有空气轴承表面（ABS）的磁记录换能器。磁记录传感器包括极，侧屏蔽，侧屏蔽和极之间的非磁性间隙，以及至少一个用于激励磁极的线圈。极杆具有靠近ABS的极尖。所述侧护罩包括至少一个非整形部分，其从与所述ABS垂直的条带高度方向上的喉部高度延伸并且与所述杆不一致。侧护罩的非共形部分和极之间的间距基于距离ABS的距离而变化。

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