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    Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel
    1.
    发明授权
    Magnetically soft, high saturation magnetization laminates of iron-cobalt-nitrogen and iron-nickel 有权
    铁 - 钴 - 氮和铁 - 镍的磁软，高饱和磁化层压板

    公开(公告)号：US06778358B1

    公开(公告)日：2004-08-17

    申请号：US10137030

    申请日：2002-05-01

    申请人： Hai Jiang ,  Yingjian Chen ,  Xiaozhong Dang ,  Mohamad T. Krounbi

    发明人： Hai Jiang ,  Yingjian Chen ,  Xiaozhong Dang ,  Mohamad T. Krounbi

    IPC分类号： G11B539

    CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/313 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T428/12465

    摘要： In one aspect, a laminated structure including a first plurality of layers containing primarily-iron FeCoN interleaved with a second plurality of layers containing primarily iron FeNi is disclosed. The structure has an easy axis of magnetization and a hard axis of magnetization, has a magnetic saturation of at least about twenty-three-thousand Gauss, and has a magnetic coercivity measured substantially along its hard axis of magnetization that is less than two Oersted. Additional elements can be added in minority concentrations to form primarily-iron FeCoN layers with increased resistivity. The laminated structure has applicability in various fields in which high saturation magnetization, magnetically soft materials are advantageous, particularly for inductive heads.

    摘要翻译： 一方面，公开了一种叠层结构，其包括主要包含铁FeCoN的第一多个层，所述第一多个层与主要包含铁FeNi的第二多个层交错。 该结构具有容易的磁化轴和硬磁化轴，具有至少约二十三万高斯的磁饱和度，并且具有基本上沿其低于两个奥斯特的硬磁化轴测量的磁矫顽力。 可以以少数浓度添加额外的元素以形成具有增加的电阻率的主要的FeCoN层。 层压结构在各种领域中具有适用性，其中高饱和磁化强度，磁软材料是有利的，特别是对于感应头。

    Thin film write head having a laminated, flat top pole with bottom shaper and method of fabrication
    2.
    发明授权
    Thin film write head having a laminated, flat top pole with bottom shaper and method of fabrication 失效
    薄膜写头，具有具有底部整形器的层叠平顶顶和制造方法

    公开(公告)号：US06975486B2

    公开(公告)日：2005-12-13

    申请号：US10213339

    申请日：2002-08-06

    申请人： Yingjian Chen ,  Xiaozhong Dang ,  Mohamad T. Krounbi ,  George V. Kelley

    发明人： Yingjian Chen ,  Xiaozhong Dang ,  Mohamad T. Krounbi ,  George V. Kelley

    IPC分类号： G11B5/31 ,  G11B5/33 ,  G11B5/147

    CPC分类号： G11B5/313 ,  G11B5/3116 ,  G11B5/3153 ,  G11B5/3163 ,  G11B5/332

    摘要： A writer for high frequency, data storage heads. The writer includes a first magnetic pole upon which a write gap pedestal is formed with an upper pedestal layer of high moment material with a planar upper surface. An electrical coil is formed on the first magnetic pole. A write gap layer is deposited on the upper surface of the upper pedestal layer. The writer includes a second magnetic pole disposed above the first magnetic pole with a magnetic, flat, top pole layer. The second magnetic pole includes a bottom shaper fabricated from high moment material positioned between the coil and the top pole layer. An insulation insert separates the bottom shaper from the upper pedestal layer. The second magnetic pole includes a thin dielectric lamination layer that separates the top pole layer from the bottom shaper to disrupt the path of eddy current in the second magnetic pole.

    摘要翻译： 高频数据存储头的写入器。 写入器包括第一磁极，写入间隙基座形成有具有平坦上表面的高力矩材料的上基座层。 在第一磁极上形成电线圈。 写间隙层沉积在上基座层的上表面上。 写入器包括设置在具有磁性，平坦的顶极层的第一磁极上方的第二磁极。 第二磁极包括由位于线圈和顶极层之间的高力矩材料制成的底部整形器。 绝缘插件将底部整形器与上基座层分开。 第二磁极包括将顶极层与底部整形器分离以破坏第二磁极中涡流的路径的薄介电层压层。

    Coil inductive writer having a low inductance and short yoke length
    3.
    发明授权
    Coil inductive writer having a low inductance and short yoke length 有权
    线圈电感写入器具有低电感和短磁轭长度

    公开(公告)号：US06940688B2

    公开(公告)日：2005-09-06

    申请号：US10277463

    申请日：2002-10-21

    申请人： Hai Jiang ,  Yingjian Chen ,  Xiaozhong Dang ,  James Wang

    发明人： Hai Jiang ,  Yingjian Chen ,  Xiaozhong Dang ,  James Wang

    IPC分类号： G11B5/17 ,  G11B5/31 ,  G11B5/147

    CPC分类号： G11B5/313 ,  G11B5/17 ,  G11B5/3163

    摘要： A method and system for providing a thin film recording head are disclosed. The method and system include providing a first pole, providing a second pole and providing a write gap separating the first pole from the second pole. The method and system further include providing at least one coil having a plurality of turns. A portion of each of the plurality of turns is between the first and the second pole. The plurality of turns wind around the second pole.

    摘要翻译： 公开了一种用于提供薄膜记录头的方法和系统。 该方法和系统包括提供第一极，提供第二极，并提供将第一极与第二极分开的写入间隙。 该方法和系统还包括提供具有多个匝的至少一个线圈。 多个匝中的每一个的一部分在第一和第二极之间。 多个转动绕第二个极点。

    Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the same
    4.
    发明授权
    Write head having a recessed, magnetic adjunct pole formed atop a main pole, and method of making the same 有权
    具有形成在主极上方的凹入的磁性辅助极的写头及其制造方法

    公开(公告)号：US06906894B2

    公开(公告)日：2005-06-14

    申请号：US10903977

    申请日：2004-07-29

    申请人： Yingjian Chen ,  Xiaozhong Dang ,  Francis H. Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

    发明人： Yingjian Chen ,  Xiaozhong Dang ,  Francis H. Liu ,  Kroum Stoev ,  Hai Jiang ,  Yugang Wang ,  Xizeng Shi

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/147

    CPC分类号： G11B5/1278 ,  G11B5/3109 ,  Y10T29/49034 ,  Y10T29/49044

    摘要： A read/write head and method of making the same are used in a data storage system, such as a disk drive, for perpendicular magnetic recording of data. The head employs a two-layer pole design with a main pole made of sputtered high moment magnetic material, and an adjunct pole made of electroplated soft magnetic film. The main pole is used to write data onto the medium, and is formed over the write coil. The adjunct pole is substantially recessed from the air bearing surface and is formed over the main pole. The present head design significantly enhances the magnetic write field, and substantially reduces side-writing that result in accidental erasure of data in adjacent tracks on the magnetic recording medium.

    摘要翻译： 读/写头及其制造方法用于数据存储系统，例如磁盘驱动器，用于数据的垂直磁记录。 头部采用双层极设计，其主极由溅射高磁矩材料制成，电极由电镀软磁膜制成。 主极用于将数据写入介质，并形成在写入线圈上。 辅助杆从空气轴承表面基本上凹入并且形成在主极上。 本头设计显着增强了磁写入场，并且基本上减少了导致磁记录介质上的相邻轨道中的数据的意外擦除的侧写。

    GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers
    8.
    发明授权
    GMR sensor with shallow contiguous junction and bias layers aligned with free sensor layers 失效
    GMR传感器具有与自由传感器层对准的浅连续结和偏置层

    公开(公告)号：US07286329B1

    公开(公告)日：2007-10-23

    申请号：US10788656

    申请日：2004-02-27

    申请人： Yingjian Chen ,  Wei Zhang ,  Mohamad T. Krounbi ,  Satoru Araki ,  Jinqiu Zhang

    发明人： Yingjian Chen ,  Wei Zhang ,  Mohamad T. Krounbi ,  Satoru Araki ,  Jinqiu Zhang

    IPC分类号： G11B5/39

    CPC分类号： G01R31/318357 ,  G11B5/3932

    摘要： A magnetic sensor is disclosed having a shallow contiguous junction. Such a sensor is can greatly increase yield for mass-produced heads, especially for large wafers. The magnetic bias layers can be aligned with a free layer of the sensor, improving performance. Milling may be terminated prior to penetration of an antiferromagnetic layer, so that for example the antiferromagnetic layer may extend significantly beyond the free and pinned layers of the sensor.

    摘要翻译： 公开了一种具有浅连续结的磁传感器。 这种传感器可以大大提高批量生产头部的产量，特别是对于大型晶片。 磁偏置层可以与传感器的自由层对准，从而提高性能。 铣削可以在穿透反铁磁层之前终止，使得例如反铁磁层可以显着地延伸超过传感器的自由和固定层。

    Magnetic sensor with underlayers promoting high-coercivity, in-plane bias layers
    9.
    发明授权
    Magnetic sensor with underlayers promoting high-coercivity, in-plane bias layers 失效
    磁性传感器具有底层，促进高矫顽力，面内偏置层

    公开(公告)号：US07639457B1

    公开(公告)日：2009-12-29

    申请号：US10788765

    申请日：2004-02-27

    申请人： Yingjian Chen ,  Wei Zhang ,  Jinqiu Zhang ,  Haifeng Wang ,  Satoru Araki ,  Mohamad T. Krounbi

    发明人： Yingjian Chen ,  Wei Zhang ,  Jinqiu Zhang ,  Haifeng Wang ,  Satoru Araki ,  Mohamad T. Krounbi

    IPC分类号： G11B5/39 ,  G11B5/127

    CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/098 ,  G11B5/3163 ,  G11B5/3932 ,  G11B2005/3996 ,  H01F10/3272

    摘要： A magnetic sensor is disclosed comprising an antiferromagnetic layer; a first ferromagnetic layer disposed over the antiferromagnetic layer, the first ferromagnetic layer having a magnetization that is pinned by the antiferromagnetic layer; a second ferromagnetic layer disposed over the first ferromagnetic layer, the second ferromagnetic layer having a magnetization that rotates due to an applied magnetic field; a third ferromagnetic layer disposed adjacent to an end of the second ferromagnetic layer, the third ferromagnetic layer having a primarily in-plane magnetization providing a magnetic field to stabilize the end of the second ferromagnetic layer; an amorphous, metallic, nonmagnetic underlayer disposed adjacent to the antiferromagnetic layer; and a crystalline seed layer disposed between the underlayer and the third ferromagnetic layer, the seed layer having a crystalline structure that promotes the in-plane magnetization of the third ferromagnetic layer.

    摘要翻译： 公开了一种磁传感器，其包括反铁磁层; 设置在所述反铁磁层上的第一铁磁层，所述第一铁磁层具有由所述反铁磁层固定的磁化; 设置在所述第一铁磁层上的第二铁磁层，所述第二铁磁层具有由施加的磁场旋转的磁化; 与所述第二铁磁层的端部相邻设置的第三铁磁层，所述第三铁磁层具有主要的面内磁化，提供磁场以稳定所述第二铁磁层的端部; 邻近反铁磁层设置的无定形金属非磁性底层; 以及设置在所述底层和所述第三铁磁层之间的结晶种子层，所述种子层具有促进所述第三铁磁层的平面内磁化的晶体结构。