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62 条记录 (耗时 0.019 秒)

    Magnetoresistive sensor with reduced operating temperature
    1.
    发明授权
    Magnetoresistive sensor with reduced operating temperature 失效
    具有降低工作温度的磁阻传感器

    公开(公告)号：US07064934B2

    公开(公告)日：2006-06-20

    申请号：US10459820

    申请日：2003-06-12

    申请人： Sining Mao ,  William P. Vavra ,  Eric S. Linville

    发明人： Sining Mao ,  William P. Vavra ,  Eric S. Linville

    IPC分类号： G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/093 ,  G11B5/3116 ,  G11B5/3133 ,  G11B5/3903 ,  G11B5/40 ,  G11B2005/0016

    摘要： A magnetoresistive (MR) sensor having reduced operating temperature is disclosed. The MR sensor, which includes an MR stack having a magnetoresistive layer, is configured to operate in a current-perpendicular-to-plane (CPP) mode wherein a sense current flows substantially perpendicular to a longitudinal plane of the magnetoresistive layer. The MR sensor further includes a thermal sink layer positioned with respect to the MR stack to reduce an operating temperature of the magnetoresistive sensor. The thermal sink layer is made of a material having high thermal conductivity, and is preferably separated from the MR stack by a metallic cap or seed layer.

    摘要翻译： 公开了具有降低的工作温度的磁阻（MR）传感器。 包括具有磁阻层的MR堆叠的MR传感器被配置为以电流垂直于平面（CPP）模式工作，其中感测电流基本上垂直于磁阻层的纵向平面流动。 MR传感器还包括相对于MR堆叠定位的散热层，以降低磁阻传感器的工作温度。 散热层由具有高导热性的材料制成，并且优选地通过金属盖或种子层与MR堆叠分离。

    Biasing for tri-layer magnetoresistive sensors
    4.
    发明授权
    Biasing for tri-layer magnetoresistive sensors 有权
    三层磁阻传感器的偏置

    公开(公告)号：US07177122B2

    公开(公告)日：2007-02-13

    申请号：US10694483

    申请日：2003-10-27

    申请人： Chunhong Hou ,  Sining Mao ,  Eric S. Linville ,  Olle Heinonen ,  Xuefei Tang ,  Qing He ,  Eric W. Singleton ,  Song S. Xue

    发明人： Chunhong Hou ,  Sining Mao ,  Eric S. Linville ,  Olle Heinonen ,  Xuefei Tang ,  Qing He ,  Eric W. Singleton ,  Song S. Xue

    IPC分类号： G11B5/33

    CPC分类号： G11B5/3932 ,  G11B5/3909 ,  G11B2005/0018 ,  G11B2005/3996

    摘要： A biasing system for a tri-layer reader stack magnetoresistive sensor is disclosed. The tri-layer reader stack includes a first ferromagnetic free layer, a second ferromagnetic free layer, and a magnetoresistive layer between the first and second ferromagnetic free layers. The free layers are positioned in the tri-layer reader stack such that quiescent state magnetizations of the free layers are antiparallel. A biasing layer is positioned with regard to the tri-layer reader stack, typically separated from the tri-layer reader stack by a nonmagnetic spacer layer. A biasing means is positioned such that a magnetization of the biasing layer is perpendicular to the quiescent state magnetizations of the free layers. This biasing results in the free layers having biased magnetizations directed substantially orthogonal with respect to each other.

    摘要翻译： 公开了一种用于三层读取器堆叠磁阻传感器的偏置系统。 三层读取器堆叠包括第一铁磁自由层，第二铁磁自由层和在第一和第二铁磁性自由层之间的磁阻层。 自由层位于三层读取器堆叠中，使得自由层的静态状态磁化反平行。 偏置层相对于三层读取器堆叠定位，通常通过非磁性间隔层与三层读取器堆叠分离。 偏置装置被定位成使得偏置层的磁化垂直于自由层的静态状态磁化。 该偏置导致自由层具有相对于彼此基本上正交的偏磁化。

    Differential CPP reader for perpendicular magnetic recording
    6.
    发明授权
    Differential CPP reader for perpendicular magnetic recording 有权
    用于垂直磁记录的差分CPP读码器

    公开(公告)号：US07016160B2

    公开(公告)日：2006-03-21

    申请号：US10715695

    申请日：2003-11-18

    申请人： Sining Mao ,  Eric S. Linville ,  Nurul Amin ,  Johannes Van Ek ,  Olle G. Heinonen

    发明人： Sining Mao ,  Eric S. Linville ,  Nurul Amin ,  Johannes Van Ek ,  Olle G. Heinonen

    IPC分类号： G11B5/127

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3948 ,  G11B2005/0008 ,  G11B2005/0029 ,  G11B2005/3996

    摘要： A differential read head comprises one tri-layer reader or a plurality of tri-layer readers operating in a current perpendicular to plane (CPP) mode. The tri-layer readers each comprise a first free layer, a second free layer, and a nonmagnetic layer positioned therebetween. A nonmagnetic spacer is positioned between the plurality of tri-layer readers for electrically connecting the plurality of tri-layer readers in series such that a single CPP sense current representing a differential signal flows serially through the read head. With a single tri-layer reader, the free layers are spaced by a width substantially similar to the transition width of the magnetic medium.

    摘要翻译： 差分读取头包括在垂直于平面（CPP）模式的电流中操作的一个三层读取器或多个三层读取器。 三层读取器各自包括位于其间的第一自由层，第二自由层和非磁性层。 非磁性间隔件位于多个三层读取器之间，用于串联电连接多个三层读取器，使得表示差分信号的单个CPP感测电流串行地流过读取头。 使用单个三层读取器，自由层间隔开与磁介质的过渡宽度基本相似的宽度。

    Discrete track media
    8.
    发明授权
    Discrete track media 有权
    离散轨道媒体

    公开(公告)号：US08298611B2

    公开(公告)日：2012-10-30

    申请号：US12178443

    申请日：2008-07-23

    申请人： Nurul Amin ,  Sining Mao

    发明人： Nurul Amin ,  Sining Mao

    IPC分类号： G11B5/00

    CPC分类号： G11B5/84 ,  B26D3/16 ,  B82Y10/00 ,  G11B5/64 ,  G11B5/66 ,  G11B5/743 ,  G11B5/82 ,  G11B5/851 ,  G11B5/865 ,  Y10T83/04

    摘要： A method of fabricating a discrete track magnetic recording media. A base layer is provided onto which repeating and alternating magnetic layer and non-magnetic layers are deposited. The thickness of the magnetic layer corresponds to the width of the track of the recording media. A cylindrical rod can be used as the base layer, such that the alternating magnetic and non-magnetic layers spiraling or concentric layers around the rod. The resulting media layer can be cut or sliced into individual magnetic media or used to imprint other media discs with the discrete pattern of the media layer.

    摘要翻译： 一种制造离散轨道磁记录介质的方法。 提供基层，沉积重复和交替的磁性层和非磁性层。 磁性层的厚度对应于记录介质的轨道的宽度。 可以使用圆柱形棒作为基层，使得交替的磁性和非磁性层围绕杆螺旋或同心层。 所得到的介质层可以被切割或切成单独的磁性介质，或用于用介质层的离散图案印刷其它介质盘。

    Differential CPP reader for perpendicular magnetic recording
    9.
    发明申请
    Differential CPP reader for perpendicular magnetic recording 有权
    用于垂直磁记录的差分CPP读码器

    公开(公告)号：US20050105219A1

    公开(公告)日：2005-05-19

    申请号：US10715695

    申请日：2003-11-18

    申请人： Sining Mao ,  Eric Linville ,  Nurul Amin ,  Johannes Van Ek ,  Olle Heinonen

    发明人： Sining Mao ,  Eric Linville ,  Nurul Amin ,  Johannes Van Ek ,  Olle Heinonen

    IPC分类号： G11B5/00 ,  G11B5/127 ,  G11B5/33 ,  G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3948 ,  G11B2005/0008 ,  G11B2005/0029 ,  G11B2005/3996

    摘要： A differential read head comprises one tri-layer reader or a plurality of tri-layer readers operating in a current perpendicular to plane (CPP) mode. The tri-layer readers each comprise a first free layer, a second free layer, and a nonmagnetic layer positioned therebetween. A nonmagnetic spacer means is positioned between the plurality of tri-layer readers for electrically connecting the plurality of tri-layer readers in series such that a single CPP sense current representing a differential signal flows serially through the read head. With a single tri-layer reader, the free layers are spaced by a width substantially similar to the transition width of the magnetic medium.

    摘要翻译： 差分读取头包括在垂直于平面（CPP）模式的电流中操作的一个三层读取器或多个三层读取器。 三层读取器各自包括位于其间的第一自由层，第二自由层和非磁性层。 非磁性间隔装置位于多个三层读取器之间，用于串联电连接多个三层读取器，使得表示差分信号的单个CPP感测电流串行流过读取头。 使用单个三层读取器，自由层间隔开与磁介质的过渡宽度基本相似的宽度。

    Structures and materials to stabilize active layers in VGMR head using AFM transverse bias
    10.
    发明授权
    Structures and materials to stabilize active layers in VGMR head using AFM transverse bias 有权
    使用AFM横向偏压来稳定VGMR头中有源层的结构和材料

    公开(公告)号：US06738235B1

    公开(公告)日：2004-05-18

    申请号：US09813411

    申请日：2001-03-21

    申请人： Sining Mao

    发明人： Sining Mao

    IPC分类号： G11B5127

    CPC分类号： G11B5/3929

    摘要： A stabilized vertical GMR head is provided and includes a GMR stack having a pair of free magnetic layers having a first edge and a second edge. A pair of soft magnetic layers is also included and positioned so that one of the soft magnetic layers is adjacent to the first edge and another of the soft magnetic layers is adjacent to the second edge. A pair of AFM layers is included and positioned so that one of the AFM layers is adjacent to one of said soft magnetic layers and another of said AFM layers being adjacent to other of said soft magnetic layers.

    摘要翻译： 提供稳定的垂直GMR磁头，并且包括具有一对具有第一边缘和第二边缘的自由磁性层的GMR堆叠。 还包括并定位一对软磁性层，使得一个软磁性层与第一边缘相邻，另一个软磁性层与第二边缘相邻。 包括并定位一对AFM层，使得AFM层中的一个与所述软磁性层中的一个相邻，并且所述AFM层中的另一个与所述软磁性层中的其它层相邻。