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1. 发明授权

US08792311B2 Transducer head temperature monitoring 有权
标题翻译：传感器头温度监控
公开(公告)号：US08792311B2
公开(公告)日：2014-07-29
申请号：US13023198
申请日：2011-02-08
申请人： Xuan Zheng , Timothy William Stoebe , Jorge Hanchi , Kaizhong Gao
发明人： Xuan Zheng , Timothy William Stoebe , Jorge Hanchi , Kaizhong Gao
IPC分类号： G11B11/00
CPC分类号： G11B5/607 , G11B5/6076 , G11B5/6088 , G11B2005/0021
摘要： Changes in the thermal boundary condition near a close point of an ABS to a media indicate proximity of the ABS with the media. Before contact, heat conduction from the ABS is primarily through convective and/or ballistic heat transfer to air between the ABS and the media. After contact, heat flux primarily flows from the ABS to the media through solid-solid conductive contact. Further, a light source within a HAMR transducer head may create additional thermal variations within the transducer head. These thermal variations create temperature variations within the transducer head. Two resistance temperature sensors on the transducer head at varying distances from the close point and/or light source measure these temperature variations. A temperature difference between the two resistance temperature sensors indicates proximity of the close point to the media and/or light output.
摘要翻译： ABS附近接近介质的热边界条件的变化指示ABS与介质的接近。在接触之前，ABS的热传导主要是通过ABS和介质之间的空气对流和/或弹道传热。接触后，热通量主要通过固体导电接触从ABS流动到介质。此外，HAMR换能器头内的光源可能在换能器头内产生额外的热变化。这些热变化会导致传感器头内的温度变化。传感器头上距离近点和/或光源不同距离的两个电阻温度传感器可测量这些温度变化。两个电阻温度传感器之间的温差指示接近于介质和/或光输出的接近点。

2. 发明授权

US08766382B2 MRAM cells including coupled free ferromagnetic layers for stabilization 有权
标题翻译： MRAM单元包括用于稳定的耦合的自由铁磁层
公开(公告)号：US08766382B2
公开(公告)日：2014-07-01
申请号：US13015320
申请日：2011-01-27
申请人： Haiwen Xi , Kaizhong Gao , Dimitar V. Dimitrov , Song S. Xue
发明人： Haiwen Xi , Kaizhong Gao , Dimitar V. Dimitrov , Song S. Xue
IPC分类号： H01L29/82 , H01L43/08 , G11C11/16
CPC分类号： H01L43/08 , G11C11/16 , G11C11/1675 , Y10T428/1114 , Y10T428/1121
摘要： A free ferromagnetic data storage layer of an MRAM cell is coupled to a free ferromagnetic stabilization layer, which stabilization layer is directly electrically coupled to a contact electrode, on one side, and is separated from the free ferromagnetic data storage layer, on an opposite side, by a spacer layer. The spacer layer provides for the coupling between the two free layers, which coupling is one of: a ferromagnetic coupling and an antiferromagnetic coupling.
摘要翻译： MRAM单元的自由铁磁数据存储层耦合到自由铁磁稳定层，该稳定层在一侧直接电耦合到接触电极，并在相对侧与自由铁磁数据存储层分离，通过间隔层。间隔层提供两个自由层之间的耦合，该耦合是以下之一：铁磁耦合和反铁磁耦合。

3. 发明授权

US08699184B2 Self-aligned bevels for write poles 有权
标题翻译：用于写入极的自对准斜面
公开(公告)号：US08699184B2
公开(公告)日：2014-04-15
申请号：US13595066
申请日：2012-08-27
申请人： Jie Zou , Kaizhong Gao
发明人： Jie Zou , Kaizhong Gao
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/3163
摘要： A method, including depositing a layer of material onto a base portion of a wafer, is disclosed. The layer of material has a first surface adjacent the base portion. The method also includes depositing a pattern of masking material onto a portion of a second surface of the layer. Material from the layer of material that is unprotected by the pattern of masking material is removed from the layer of material. By removing such material a portion of the layer of material is suspended from the base portion.
摘要翻译：公开了一种方法，包括将一层材料沉积在晶片的基部上。材料层具有邻近基部的第一表面。该方法还包括将掩模材料的图案沉积到该层的第二表面的一部分上。从掩模材料图案未被保护的材料层的材料从材料层移除。通过移除这种材料，材料层的一部分从基部悬浮。

4. 发明授权

US08681590B2 Apparatus for increasing data rates in a magnetic head 有权
标题翻译：用于增加磁头数据速率的装置
公开(公告)号：US08681590B2
公开(公告)日：2014-03-25
申请号：US13173811
申请日：2011-06-30
申请人： Hua Zhou , Jie Zou , Kaizhong Gao , Amit Vasant Itagi
发明人： Hua Zhou , Jie Zou , Kaizhong Gao , Amit Vasant Itagi
IPC分类号： G11B11/00
CPC分类号： G11B7/1387 , G11B5/1278 , G11B5/17 , G11B5/3116 , G11B5/3123 , G11B5/314 , G11B7/1384 , G11B2005/0021
摘要： In accordance with certain embodiments, a magnetic head has a coil, which has a lead coil turn positioned between a yoke and an air-bearing surface. In certain embodiments, a magnetic head has a coil, which has a lead coil turn minimally spaced from a main write pole.
摘要翻译：根据某些实施例，磁头具有线圈，该线圈具有位于轭和空气轴承表面之间的引线盘绕圈。在某些实施例中，磁头具有线圈，该线圈具有与主写柱最小间隔的引线盘绕。

5. 发明申请

US20140063657A1 Magnetic Recording Head Having a Pole Tip Shield 有权
标题翻译：具有杆尖屏蔽的磁记录头
公开(公告)号：US20140063657A1
公开(公告)日：2014-03-06
申请号：US13823672
申请日：2010-09-15
申请人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
发明人： Kaizhong Gao , Eric Meloche , Jianhua Xue , Eric S. Linville , Dehua Han , Huaqing Yin
IPC分类号： G11B5/193 , G11B5/187
CPC分类号： G11B5/193 , G11B5/1278 , G11B5/187 , G11B5/315
摘要： A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.
摘要翻译：公开了一种包括极端屏蔽的写入元件。在所公开的实施例中，例如，极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分，以形成具有沿着侧屏蔽部分的长度在下游方向上减小的磁矩的分级侧屏蔽部分。在另一个实施例中，极尖屏蔽包括侧面屏蔽部分，其具有沿磁极末端的侧边缘的部分长度延伸的缩短的长度。在所示的实施例中，侧面屏蔽部分由具有在极尖的前缘前方的凹入部分的成形体形成。凹入部分具有圆形的缩进表面轮廓，其形成圆顶轮廓，用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。

6. 发明授权

US08628867B2 Patterned template with 1xN nucleation site to grain growth for uniform grain size recording media 有权
标题翻译：具有1xN成核位点的图案化模板，用于均匀晶粒尺寸记录介质的晶粒生长
公开(公告)号：US08628867B2
公开(公告)日：2014-01-14
申请号：US12895564
申请日：2010-09-30
申请人： Shuaigang Xiao , Thomas Young Chang , Yingguo Peng , David Kuo , Kaizhong Gao , Thomas Patrick Nolan , Ganping Ju
发明人： Shuaigang Xiao , Thomas Young Chang , Yingguo Peng , David Kuo , Kaizhong Gao , Thomas Patrick Nolan , Ganping Ju
IPC分类号： G11B5/66
CPC分类号： G11B5/7325 , G11B5/84 , G11B5/855
摘要： A perpendicular magnetic media includes a substrate, a patterned template, a seed layer and a magnetic layer. The patterned template is formed on the substrate and includes a plurality of growth sites that are evenly spaced apart from each other. The seed layer is formed over the patterned template and the exposed areas of the substrate. Magnetic material is sputter deposited onto the seed layer with one grain of the magnetic material nucleated over each of the growth sites. The grain size distribution of the magnetic material is reduced by controlling the locations of the growth sites which optimizes the performance of the perpendicular magnetic media.
摘要翻译：垂直磁性介质包括衬底，图案化模板，种子层和磁性层。图案化模板形成在基板上并且包括彼此均匀间隔开的多个生长位点。种子层形成在图案化模板和基板的暴露区域上。将磁性材料溅射沉积到种子层上，其中一颗磁性材料成核在每个生长位点上。通过控制优化垂直磁性介质性能的生长部位的位置来减小磁性材料的粒度分布。

7. 发明授权

US08582250B2 Double biasing for trilayer MR sensors 有权
标题翻译：用于三层MR传感器的双偏置
公开(公告)号：US08582250B2
公开(公告)日：2013-11-12
申请号：US12631183
申请日：2009-12-04
申请人： Jiaoming Qiu , Yonghua Chen , Kaizhong Gao
发明人： Jiaoming Qiu , Yonghua Chen , Kaizhong Gao
IPC分类号： G11B5/33 , G11B5/127
CPC分类号： G11B5/3932 , B82Y25/00 , G01R33/0011 , G01R33/093
摘要： A trilayer magnetoresistive sensor has at least first and second ferromagnetic layers separated by a nonmagnetic layer. A high coercivity permanent magnet bias element biases the first ferromagnetic layer in a first direction. A high moment permanent magnet bias element biases the second ferromagnetic layer in a second direction substantially orthogonal to the first direction.
摘要翻译：三层磁阻传感器至少具有由非磁性层分离的第一和第二铁磁层。高矫顽力永磁体偏置元件沿第一方向偏置第一铁磁层。高瞬间永磁偏置元件在与第一方向大致正交的第二方向上偏置第二铁磁层。

8. 发明授权

US08477443B2 Pulse writing for bit patterned and continuous media recording 有权
标题翻译：脉冲写入用于位图和连续介质记录
公开(公告)号：US08477443B2
公开(公告)日：2013-07-02
申请号：US12506748
申请日：2009-07-21
申请人： Kaizhong Gao , Olle Gunnar Heinonen , Jianhua Xue , Wenzhong Zhu
发明人： Kaizhong Gao , Olle Gunnar Heinonen , Jianhua Xue , Wenzhong Zhu
IPC分类号： G11B5/09 , G11B5/03
CPC分类号： G11B20/10009 , B82Y10/00 , G11B5/09 , G11B5/743 , G11B2220/2516 , G11B2220/252
摘要： Data storage systems are provided. Data storage systems illustratively include a writing element and a recording medium. In some embodiments, the writing element generates first and second magnetization fields that respectively record first and second magnetization patterns to the recording medium. In some embodiments, the writing element is de-saturated between recording the first and second magnetization patterns.
摘要翻译：提供数据存储系统。数据存储系统示例性地包括写入元件和记录介质。在一些实施例中，写入元件产生分别将第一和第二磁化模式记录到记录介质的第一和第二磁化场。在一些实施例中，在记录第一和第二磁化模式之间，写入元件被去饱和。

9. 发明申请

US20130100783A1 Recording Head for Heat Assisted Magnetic Recording with a Side Lobe Blocker 有权
标题翻译：记录头用于辅助磁记录与侧挡板
公开(公告)号：US20130100783A1
公开(公告)日：2013-04-25
申请号：US13280981
申请日：2011-10-25
申请人： Mark Henry Ostrowski , Jie Zou , Amit Itagi , Kaizhong Gao
发明人： Mark Henry Ostrowski , Jie Zou , Amit Itagi , Kaizhong Gao
IPC分类号： G11B7/1387
CPC分类号： G11B5/1278 , G11B5/3136 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： An apparatus includes a waveguide having a core layer, a near field transducer having an end positioned adjacent to a first surface, a first magnetic pole having an end positioned adjacent to the first surface, and a side lobe blocker adjacent to the first surface and having portions on opposite sides of the first magnetic pole and the near field transducer, wherein the side lobe blocker forms an aperture at an end of the core layer adjacent to the first surface.
摘要翻译：一种装置包括具有芯层的波导，具有邻近第一表面定位的端部的近场换能器，具有邻近第一表面定位的端部的第一磁极和与第一表面相邻的旁瓣阻挡件，并且具有在第一磁极和近场换能器的相对侧上的部分，其中旁瓣阻挡件在与芯片层的第一表面相邻的端部处形成孔。

10. 发明授权

US08422279B2 STRAM with composite free magnetic element 有权
标题翻译： STRAM与复合自由磁性元件
公开(公告)号：US08422279B2
公开(公告)日：2013-04-16
申请号：US13278247
申请日：2011-10-21
申请人： Yuankai Zheng , Dimitar V. Dimitrov , Dexin Wang , Haiwen Xi , Kaizhong Gao , Olle Heinonen , Wenzhong Zhu
发明人： Yuankai Zheng , Dimitar V. Dimitrov , Dexin Wang , Haiwen Xi , Kaizhong Gao , Olle Heinonen , Wenzhong Zhu
IPC分类号： G11C11/00
CPC分类号： G11C11/1675 , B82Y10/00 , B82Y25/00 , G11C11/16 , G11C11/161 , H01F10/3254 , H01F10/3268 , H01F10/3286 , H01F10/329 , H01L43/08
摘要： Spin-transfer torque memory includes a composite free magnetic element, a reference magnetic element having a magnetization orientation that is pinned in a reference direction, and an electrically insulating and non-magnetic tunneling barrier layer separating the composite free magnetic element from the magnetic reference element. The free magnetic element includes a hard magnetic layer exchanged coupled to a soft magnetic layer. The composite free magnetic element has a magnetization orientation that can change direction due to spin-torque transfer when a write current passes through the spin-transfer torque memory unit.
摘要翻译：自旋转矩存储器包括复合自由磁性元件，具有沿参考方向固定的磁化取向的参考磁性元件以及将复合自由磁性元件与磁性参考元件分离的电绝缘和非磁性隧道势垒层。自由磁性元件包括与软磁性层交换的硬磁性层。复合自由磁性元件具有当写入电流通过自旋转移转矩存储单元时由于自旋转矩传递而改变方向的磁化取向。

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