利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

46 条记录 (耗时 0.033 秒)

    Shield fabrication of magnetic write heads
    13.
    发明授权
    Shield fabrication of magnetic write heads 有权
    磁写头的屏蔽制造

    公开(公告)号：US07877859B2

    公开(公告)日：2011-02-01

    申请号：US11767330

    申请日：2007-06-22

    申请人： Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin

    发明人： Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin

    IPC分类号： G11B5/127 ,  H04R31/00

    CPC分类号： G11B5/11 ,  G11B33/1493 ,  Y10T29/49021 ,  Y10T29/49028 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49155 ,  Y10T29/49165

    摘要： Methods are provided for fabricating a write head with a self aligned wrap around shield and a self aligned flared region of a write pole. A flare point and a track width of a write pole may be fabricated using multiple processes. The multiple processes utilize several masking structures to define the track width and the flare point of the write pole. A mask structure is formed to cover a first portion of the write pole. An edge of the mask structure adjacent to an exposed second portion of the write pole defines a flare point of the write pole. Various structures of the write head, including shield gap layers, a wrap around shield and a flared region (e.g., the yoke) of the write pole may be fabricated from the flare point defined by the mask structure.

    摘要翻译： 提供了用于制造具有围绕屏蔽件的自对准包裹和写入极的自对准扩口区域的写入头的方法。 可以使用多个工艺来制造写极点的闪点和轨道宽度。 多个过程利用几个掩模结构来定义磁道宽度和写入磁极的扩展点。 形成掩模结构以覆盖写入极的第一部分。 掩模结构的与写入极的暴露的第二部分相邻的边缘限定了写入极的扩张点。 写磁头的各种结构，包括屏蔽间隙层，环绕屏蔽层和写磁极的扩口区域（例如磁轭）可以由掩模结构限定的扩口来制造。

    Shaped trailing shield of a perpendicular recording write element
    14.
    发明申请
    Shaped trailing shield of a perpendicular recording write element 有权
    垂直记录写元件的形状的后盾

    公开(公告)号：US20070236831A1

    公开(公告)日：2007-10-11

    申请号：US11399548

    申请日：2006-04-06

    申请人： Xiaodong Che ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin

    发明人： Xiaodong Che ,  Wen-Chien Hsiao ,  Yimin Hsu ,  Vladimir Nikitin

    IPC分类号： G11B5/147

    CPC分类号： G11B5/1278 ,  G11B5/11 ,  G11B5/3116 ,  G11B5/3146

    摘要： Write elements are discussed having a write pole and an associated trailing shield. A leading side of the trailing shield faces a trailing side of the write pole. The leading side of the trailing shield has a shape such that a center portion of the leading side has less of a separation from the trailing side of the write pole than track edge portions of the leading side of the trailing shield. An exemplary shape the leading side of the trailing shield may be a convex shape when viewed from the ABS. The shape of the leading side of the trailing shield causes the trailing shield to shunt less of the magnetic field from the trailing side of the write pole at the track edges so that the written transition at the track edge will not lag behind the written transition at the track center allowing for a straighter transition.

    摘要翻译： 讨论了具有写极点和相关联的后屏蔽的写元件。 后挡板的前端面向写极的后侧。 后挡板的前侧具有这样的形状，使得前侧的中心部分比后挡板的前侧的轨道边缘部分具有比写入极的后侧更小的间隔。 当从ABS观察时，后护罩的前侧的示例性形状可以是凸形。 尾部屏蔽的前端的形状使得后屏蔽件在轨道边缘处从写入极的后侧分流较少的磁场，使得在轨道边缘处的写入的转变不会滞后于在 轨道中心允许更直接的过渡。

    Apparatus for enhancing thermal stability, improving biasing and reducing damage from electrostatic discharge in self-pinned abutted junction heads having a first self-pinned layer extending under the hard bias layers
    15.
    发明授权
    Apparatus for enhancing thermal stability, improving biasing and reducing damage from electrostatic discharge in self-pinned abutted junction heads having a first self-pinned layer extending under the hard bias layers 失效
    用于增强热稳定性，改善偏压并减少在自固定的邻接接头中的静电放电的损伤的装置，其具有在硬偏压层下延伸的第一自固位层

    公开(公告)号：US07092220B2

    公开(公告)日：2006-08-15

    申请号：US10629535

    申请日：2003-07-29

    申请人： Hardayal Singh Gill ,  Wen-Chien Hsiao ,  Jih-Shiuan Luo

    发明人： Hardayal Singh Gill ,  Wen-Chien Hsiao ,  Jih-Shiuan Luo

    IPC分类号： G11B5/39

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  B82Y40/00 ,  G11B5/3903 ,  G11B5/3932 ,  H01F10/3281 ,  H01F41/302

    摘要： A method and apparatus for enhancing thermal stability, improving biasing and reducing damage from electrical surges in self-pinned abutted junction heads. A first self-pinned layer having a first magnetic orientation is provided, wherein the first self-pinned layer has a first end, a second end and central portion. A second self-pinned layer is formed over only the central portion of the first self-pinned layer and an interlayer is disposed between the first and second self-pinned layers. A free layer is formed in a central region over the second self-pinned layer. First and second hard bias layers are formed over the first and second ends of the first self-pinned layer respectively, the first and second hard bias layer abutting the free layer, the first and second end of the first self-pinned layer extending under the hard bias layers at the first and second ends.

    摘要翻译： 一种用于增强热稳定性，改善偏压并减少自销接合接头中的电涌的损伤的方法和装置。 提供了具有第一磁性取向的第一自固位层，其中第一自固位层具有第一端，第二端和中心部分。 仅在第一自被钉扎层的中心部分上形成第二自固位层，并且中间层设置在第一和第二自固位层之间。 在第二自固位层上的中心区域形成自由层。 第一和第二硬偏压层分别形成在第一自固位层的第一和第二端上，第一和第二硬偏置层邻接自由层，第一自固位层的第一和第二端延伸在 在第一和第二端的硬偏压层。

    Apparatus having a self-pinned abutted junction magnetic read sensor with hard bias layers formed over ends of a self-pinned layer and extending under a hard bias layer
    16.
    发明授权
    Apparatus having a self-pinned abutted junction magnetic read sensor with hard bias layers formed over ends of a self-pinned layer and extending under a hard bias layer 失效
    具有自固定邻接接合磁读取传感器的装置，其具有形成在自固定层的端部上并在硬偏置层下方延伸的硬偏置层

    公开(公告)号：US07050277B2

    公开(公告)日：2006-05-23

    申请号：US10629319

    申请日：2003-07-29

    申请人： Hardayal Singh Gill ,  Wen-Chien Hsiao ,  Jih-Shiuan Luo

    发明人： Hardayal Singh Gill ,  Wen-Chien Hsiao ,  Jih-Shiuan Luo

    IPC分类号： G11B5/39

    CPC分类号： G11B5/31

    摘要： A method and apparatus for enhancing thermal stability, improving biasing and reducing damage from electrical surges in self-pinned abutted junction heads. The head includes a self-pinned layer, the self-pinned layer having a first end, a second end and central portion, a free layer disposed over the central portion of the self-pinned layer in a central region and a first and second hard bias layers formed over the first and second ends of the self-pinned layer respectively, the first and second hard bias layer abutting the free layer, the first and second end of the self-pinned layer extending under the hard bias layers at the first and second ends.

    摘要翻译： 一种用于增强热稳定性，改善偏压并减少自销接合接头中的电涌的损伤的方法和装置。 头部包括自固位层，自固位层具有第一端，第二端和中心部分，自由层设置在中心区域中的自固位层的中心部分上，第一和第二硬 偏置层分别形成在自固位层的第一和第二端上，第一和第二硬偏置层邻接自由层，自固位层的第一和第二端在第一和第二硬质偏压层的下面延伸， 第二端

    Magnetic recording heads having thin thermally conductive undercoating
    17.
    发明授权
    Magnetic recording heads having thin thermally conductive undercoating 失效
    具有薄导热底涂层的磁记录头

    公开(公告)号：US07035047B2

    公开(公告)日：2006-04-25

    申请号：US10271293

    申请日：2002-10-15

    申请人： Wen-Chien Hsiao ,  Peter Beverley Powell Phipps ,  Yong Shen ,  John Jaekoyun Yang ,  Samuel Wei-san Yuan

    发明人： Wen-Chien Hsiao ,  Peter Beverley Powell Phipps ,  Yong Shen ,  John Jaekoyun Yang ,  Samuel Wei-san Yuan

    IPC分类号： G11B5/147

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/11 ,  G11B5/3103 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/332 ,  G11B5/3967 ,  G11B5/40 ,  G11B2005/3996

    摘要： A magnetic head having read and write elements is provided according to one embodiment. The head includes a substrate. An undercoating is coupled to the substrate. The undercoating has a preferred thickness of between about 1.5 and 0.5 microns or less in a direction perpendicular to the planar surface of the substrate engaging the undercoating. Preferably, the undercoating is reduced to a desired thickness during fabrication using chemical mechanical polishing. The undercoating is constructed of a material having a thermal conductivity greater than that of amorphous Al2O3. An electric contact pad is operatively coupled to a layer positioned between the pad and the undercoating. Electric contact pads of read and write elements are preferably separated from the undercoating by insulation planarization layers. A write element is coupled to the undercoating. The write element has an electrically conductive coil. The new thinner and more thermally conductive undercoating allows more heat to transfer through it from the write element to the substrate.

    摘要翻译： 根据一个实施例，提供具有读和写元件的磁头。 头包括基底。 底涂层与基底结合。 底涂层在垂直于与底涂层接触的基材的平坦表面的方向上具有约1.5至0.5微米或更小的优选厚度。 优选地，在使用化学机械抛光的制造期间，底涂层被还原成所需的厚度。 底涂层由热导率大于无定形Al 2 O 3 3的材料构成。 电接触垫可操作地耦合到位于垫和底涂层之间的层。 读取和写入元件的电接触焊盘优选通过绝缘平坦化层与底涂层分离。 写入元件耦合到底涂层。 写入元件具有导电线圈。 新的更薄且更热导热的底涂层允许更多的热量从写入元件转移到衬底。

    Localized pole tip heating device for magnetic head for hard disk drive
    18.
    发明申请
    Localized pole tip heating device for magnetic head for hard disk drive 有权
    用于硬盘驱动器的磁头的本地极尖加热装置

    公开(公告)号：US20050018347A1

    公开(公告)日：2005-01-27

    申请号：US10624656

    申请日：2003-07-21

    申请人： Wen-Chien Hsiao ,  Quan-Chiu Lam

    发明人： Wen-Chien Hsiao ,  Quan-Chiu Lam

    IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/10 ,  G11B5/17 ,  G11B5/31 ,  G11B5/39

    CPC分类号： G11B5/3133 ,  G11B5/012 ,  G11B5/17 ,  G11B5/3103 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/3143 ,  G11B5/3967 ,  G11B2005/0002 ,  G11B2005/0005 ,  G11B2005/0008 ,  G11B2005/0013

    摘要： The magnetic head is formed with a narrow pole tip, and a pole tip heating element is fabricated to reduce the pole tip stress and increase its permeability, such that the magnetization switching speed of the pole tip is increased. The heating element is preferably electrically interconnected within the induction coil circuit of the magnetic head, such that the electrical current flowing through the induction coil also flows through the heating element. In a preferred embodiment, the heating element is fabricated above the second magnetic pole. The heating element is preferably formed with a resistance of approximately 0.2 to 1.0 ohms, such that the approximately 40 mA current that flows through the induction coil and the heating element creates a heating energy of the heating element of approximately 0.3 to 1.6 mW. The heating element can be comprised of a variety of materials such as Cu, W, NiFe, NiCr and IrRh.

    摘要翻译： 磁头形成有窄极尖，并且制造极尖加热元件以减小极尖应力并增加其磁导率，使得极尖的磁化转换速度增加。 加热元件优选地在磁头的感应线圈电路内电互连，使得流过感应线圈的电流也流过加热元件。 在优选实施例中，加热元件制造在第二磁极之上。 加热元件优选地形成有大约0.2至1.0欧姆的电阻，使得流过感应线圈和加热元件的大约40mA的电流产生大约0.3至1.6mW的加热元件的加热能量。 加热元件可以由诸如Cu，W，NiFe，NiCr和IrRh的各种材料组成。

    Current perpendicular to plane magnetoresistance read head design using a current confinement structure proximal to an air bearing surface
    20.
    发明授权
    Current perpendicular to plane magnetoresistance read head design using a current confinement structure proximal to an air bearing surface 有权
    电流垂直于平面磁阻读头设计，使用靠近空气轴承表面的电流限制结构

    公开(公告)号：US08098463B2

    公开(公告)日：2012-01-17

    申请号：US12182701

    申请日：2008-07-30

    申请人： Hardayal S. Gill ,  Werner J. Douglas ,  Wipul P. Jayasekara ,  Wen-Chien Hsiao

    发明人： Hardayal S. Gill ,  Werner J. Douglas ,  Wipul P. Jayasekara ,  Wen-Chien Hsiao

    IPC分类号： G11B5/31

    CPC分类号： G11B5/3983 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3912 ,  G11B5/3929 ,  G11B5/398

    摘要： A current to perpendicular to plane (CPP) magnetoresistance (MR) read head using current confinement proximal to an air bearing surface (ABS) is disclosed. A CPP MR read head includes a first shield, an MR sensor formed on the first shield, and a second shield contacting the MR sensor proximal to an ABS. The CPP MR read head further includes insulating material between the MR sensor and the second shield, where the insulating material is distal to the ABS to electrically isolate the MR sensor from the second shield distal to the ABS. Sense current injected from the second shield through the MR sensor and into the first shield is confined proximal to the ABS at a location where the second shield contacts the MR sensor.

    摘要翻译： 公开了使用靠近空气轴承表面（ABS）的电流限制来垂直于平面（CPP）磁阻（MR）读取头的电流。 CPP MR读取头包括形成在第一屏蔽上的第一屏蔽，MR传感器和接近ABS的MR传感器的第二屏蔽。 CPP MR读取头还包括在MR传感器和第二屏蔽之间的绝缘材料，其中绝缘材料位于ABS的远侧，以将MR传感器与远离ABS的第二屏蔽电隔离。 从第二屏蔽件通过MR传感器注入并进入第一屏蔽层的感应电流在第二屏蔽件接触MR传感器的位置处被限制在ABS附近。