Magnetic read head with recessed hard bias and current leads
    1.
    发明授权
    Magnetic read head with recessed hard bias and current leads 有权
    具有凹陷硬偏置和电流引线的磁读头

    公开(公告)号:US07212384B1

    公开(公告)日:2007-05-01

    申请号:US10788653

    申请日:2004-02-27

    IPC分类号: G11B5/39

    CPC分类号: G11B5/3932

    摘要: A read element includes a magnetoresistive sensor having a side and an upper surface that defines an edge. An underlayer overlies the side of the magnetoresistive sensor, and a hard bias layer overlies at least part of the underlayer and defines a hard bias junction with the underlayer. A lead is formed atop the hard bias layer. The hard bias junction is recessed from the edge of the magnetoresistive sensor by a predetermined recess distance, to provide stability and sensitivity to the read element.

    摘要翻译: 读取元件包括具有限定边缘的侧面和上表面的磁阻传感器。 底层覆盖在磁阻传感器的侧面,并且硬偏压层覆盖在底层的至少一部分上并且限定与底层的硬偏压连接。 在硬偏压层顶部形成引线。 硬偏压接合部从磁阻传感器的边缘凹入预定的凹陷距离,以向读取元件提供稳定性和灵敏度。

    Method and system for providing a read transducer having soft and hard magnetic bias structures
    2.
    发明授权
    Method and system for providing a read transducer having soft and hard magnetic bias structures 有权
    用于提供具有软和硬磁偏置结构的读取换能器的方法和系统

    公开(公告)号:US08760823B1

    公开(公告)日:2014-06-24

    申请号:US13332313

    申请日:2011-12-20

    IPC分类号: G11B5/39

    摘要: A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a first shield, a read sensor, at least one soft magnetic bias structure and at least one hard bias structure. The read sensor includes a sensor layer that has at least one edge in the track width direction along the ABS. The soft magnetic bias structure(s) are adjacent to the edge(s) of the sensor layer. The soft magnetic bias structure has a first permeability. The soft bias structure(s) are between the read sensor and the hard bias structure(s). The hard bias structure(s) are adjacent to a portion of the soft bias structure(s) and have a second permeability. The first permeability is at least ten multiplied by the second permeability.

    摘要翻译: 一种方法和系统提供具有空气轴承表面(ABS)的磁换能器。 磁换能器包括第一屏蔽,读取传感器,至少一个软磁偏置结构和至少一个硬偏压结构。 读取传感器包括沿ABS沿轨道宽度方向具有至少一个边缘的传感器层。 软磁偏置结构与传感器层的边缘相邻。 软磁偏置结构具有第一磁导率。 柔性偏置结构位于读取传感器和硬偏置结构之间。 硬偏压结构与软偏压结构的一部分相邻并且具有第二磁导率。 第一渗透率至少为乘以第二渗透率的十倍。

    Method and system for providing a read transducer having an adaptive read sensor track width
    4.
    发明授权
    Method and system for providing a read transducer having an adaptive read sensor track width 有权
    用于提供具有自适应读取传感器轨道宽度的读取换能器的方法和系统

    公开(公告)号:US08599520B1

    公开(公告)日:2013-12-03

    申请号:US13332275

    申请日:2011-12-20

    IPC分类号: G11B5/127 G11B5/39

    摘要: A method and system provide a magnetic read transducer having an air-bearing surface (ABS). The magnetic transducer includes a first shield, a second shield, and a read sensor between the first shield and the second shield. The read sensor extends along a stripe height direction perpendicular to the ABS. A first portion of the read sensor at the ABS has a first width in a track width direction parallel to the ABS. A second portion of the read sensor is recessed from the ABS along the stripe height direction and has a second width in the track width direction. The second width is greater than the first width.

    摘要翻译: 一种方法和系统提供具有空气轴承表面(ABS)的磁读取换能器。 磁换能器包括在第一屏蔽和第二屏蔽之间的第一屏蔽,第二屏蔽和读取传感器。 读取传感器沿垂直于ABS的条带高度方向延伸。 ABS处的读取传感器的第一部分具有平行于ABS的轨道宽度方向上的第一宽度。 读取传感器的第二部分沿着条带高度方向从ABS凹入,并且在轨道宽度方向上具有第二宽度。 第二宽度大于第一宽度。

    Method and apparatus for controlling magnetostriction in a spin valve sensor
    5.
    发明授权
    Method and apparatus for controlling magnetostriction in a spin valve sensor 失效
    用于控制自旋阀传感器中的磁致伸缩的方法和装置

    公开(公告)号:US07318947B1

    公开(公告)日:2008-01-15

    申请号:US10931622

    申请日:2004-08-31

    IPC分类号: B05D5/12

    摘要: A method and system for providing a magnetic element are described. The method and system include providing a pinned layer, fabricating a metallic spacer layer and oxidizing a portion of the spacer layer in an environment including at least oxygen and a gas inert with respect to the spacer layer to provide an oxide layer. The method and system also include creating a free layer. The oxide layer is between a remaining metallic portion of the spacer layer and the free layer. In one aspect, the system includes a chamber and a gas diffusion apparatus within the chamber. The gas diffusion apparatus includes a plurality of nozzles and defines a plane. The gas exits each of the plurality of nozzles in a cone having an apex angle. The nozzles are directed at a nozzle tilt angle of at least half of the apex angle from the plane and the spacer layer.

    摘要翻译: 描述了一种用于提供磁性元件的方法和系统。 该方法和系统包括提供被钉扎层,制造金属间隔层并在包括至少氧和相对于间隔层惰性的气体的环境中氧化间隔层的一部分以提供氧化物层。 该方法和系统还包括创建一个自由层。 氧化物层位于间隔层的剩余金属部分和自由层之间。 在一个方面,该系统包括室内的气体扩散装置。 气体扩散装置包括多个喷嘴并限定一个平面。 气体以具有顶角的锥体离开多个喷嘴中的每一个。 喷嘴以与顶板和间隔层的顶角的至少一半的喷嘴倾斜角度定向。

    Method and system for providing a stable spin filter
    6.
    发明授权
    Method and system for providing a stable spin filter 失效
    提供稳定的自旋过滤器的方法和系统

    公开(公告)号:US07307818B1

    公开(公告)日:2007-12-11

    申请号:US10837381

    申请日:2004-04-30

    IPC分类号: G11B5/39 G11B5/127

    摘要: A method and system for providing a spin filter is disclosed. The method and system include providing a pinned layer, a free layer, and a conductive nonmagnetic spacer layer between the pinned layer and the free layer. The method and system also include providing a spin filter layer and a capping layer on the spin filter layer. The spin filter layer is adjacent to the free layer. The spin filter layer is on an opposite side of the free layer as the nonmagnetic spacer layer and includes at least Pt and/or Rh. The capping layer has a specular reflection layer therein. In one aspect, the specular reflection layer allows specular reflection of current carriers traveling from the spin filter layer to the specular reflection layer. In another aspect, the specular reflection layer includes at least Ta, Ti, Zr, Hf, Nb, Al, Mo, W, Si, Cr, V, Ni, Co, and Fe.

    摘要翻译: 公开了一种用于提供自旋过滤器的方法和系统。 该方法和系统包括在钉扎层和自由层之间提供钉扎层,自由层和导电非磁性间隔层。 该方法和系统还包括在自旋过滤层上提供自旋过滤层和覆盖层。 自旋过滤层与自由层相邻。 自旋过滤层位于自由层的与非磁性间隔层相反的一侧,并且至少包括Pt和/或Rh。 盖层在其中具有镜面反射层。 在一个方面,镜面反射层允许从自旋过滤层行进到镜面反射层的电流载流子的镜面反射。 另一方面,镜面反射层至少包括Ta,Ti,Zr,Hf,Nb,Al,Mo,W,Si,Cr,V,Ni,Co和Fe。