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    Method and system for dual element transducer flight height adjustment using combined thermal and electrostatic control
    1.
    发明授权
    Method and system for dual element transducer flight height adjustment using combined thermal and electrostatic control 有权
    使用组合式热静电控制的双元件换能器飞行高度调节方法和系统

    公开(公告)号：US06999265B1

    公开(公告)日：2006-02-14

    申请号：US10981376

    申请日：2004-11-03

    申请人： Erhard Schreck ,  Thao Nguyen ,  Brian Strom ,  Lydia Baril

    发明人： Erhard Schreck ,  Thao Nguyen ,  Brian Strom ,  Lydia Baril

    IPC分类号： G11B21/02

    CPC分类号： G11B5/6017 ,  G11B5/6064

    摘要： A method and system control the flight height of a transducer element of a slider mechanism operating in association with a storage disk. The invention adjusts the flight height of transducer element to a first flight height using an electromechanical control mechanism. The flight height of transducer element then achieves a second flight height using a thermal control mechanism. The thermal control mechanism is associated with a thermally responsive portion of transducer element. By heating the thermally responsive portion, a portion of transducer element becomes sufficiently proximate to the storage disk for the transducer element to respond to physical forces arising from electrostatic induction between transducer element and the storage disk. Flight height adjustment of transducer element from the second flight height to a third flight height may then occur using an electrostatic control mechanism which generates a physical force through electrostatic induction.

    摘要翻译： 方法和系统控制与存储盘相关联的滑块机构的换能器元件的飞行高度。 本发明使用机电控制机构将换能器元件的飞行高度调整到第一飞行高度。 传感器元件的飞行高度然后使用热控制机构实现第二飞行高度。 热控制机构与换能器元件的热响应部分相关联。 通过加热热响应部分，换能器元件的一部分变得足够接近于用于换能器元件的存储盘，以响应由换能器元件和存储盘之间的静电感应产生的物理力。 传感器元件从第二个飞行高度到第三个飞行高度的飞行高度调整可能会使用静电控制机构进行，静电控制机制通过静电感应产生物理力。

    Disk drive head resetting system using slider heater
    2.
    发明授权
    Disk drive head resetting system using slider heater 有权
    使用滑块加热器的磁盘驱动器磁头复位系统

    公开(公告)号：US07042674B1

    公开(公告)日：2006-05-09

    申请号：US11050462

    申请日：2005-02-03

    申请人： Lydia Baril ,  Brian Strom

    发明人： Lydia Baril ,  Brian Strom

    IPC分类号： G11B21/02

    CPC分类号： G11B5/6005 ,  G11B5/314 ,  G11B5/40 ,  G11B5/465 ,  G11B5/607

    摘要： The invention is generally directed to a disk drive head resetting system. The system has a slider with a disk drive head associated therewith. The disk drive head may be on the slider and affixed thereto. A heater is also associated with a slider and spaced apart from the disk drive head. A controller is communicatively coupled to the heater and to the head to transfer a first control signal to the heater and a second control signal to the disk drive head at substantially the same time. The first control signal may be used to generate heat past a blocking temperature of the head to substantially free a magnetic orientation of the head. While the first control signal is being transferred to the heater, a second control signal is transferred to the disk drive head to align a magnetic orientation of the head to a desired magnetic orientation.

    摘要翻译： 本发明一般涉及一种磁盘驱动器磁头复位系统。 该系统具有与其相关联的盘驱动头的滑块。 磁盘驱动器头可以在滑块上并固定在其上。 加热器也与滑块相关联并与盘驱动头间隔开。 控制器通信地耦合到加热器和头部以将第一控制信号传送到加热器，并且基本上同时将第二控制信号传送到盘驱动器头。 第一控制信号可用于产生经过头部的阻挡温度的热量，以实质上释放头部的磁性取向。 当第一控制信号被传送到加热器时，第二控制信号被传送到磁盘驱动器头，以将磁头的磁方向对准所需的磁方向。

    Low thermal coefficient of resistivity on-slider tunneling magneto-resistive shunt resistor
    4.
    发明授权
    Low thermal coefficient of resistivity on-slider tunneling magneto-resistive shunt resistor 有权
    电阻率低热导系数隧道磁阻分流电阻的低热系数

    公开(公告)号：US07706109B2

    公开(公告)日：2010-04-27

    申请号：US11582851

    申请日：2006-10-17

    申请人： Mark Nichols ,  Bill Edward Higgins ,  Michael Mallary ,  Lydia Baril

    发明人： Mark Nichols ,  Bill Edward Higgins ,  Michael Mallary ,  Lydia Baril

    IPC分类号： G11B5/39 ,  G11B5/40

    CPC分类号： G11B5/455 ,  G11B5/6005

    摘要： A slider includes a Tunneling Magneto-Resistive (TuMR) read sensor and a shunt resistor connected in parallel. The shunt resistor may be located in a read structure of the slider. The shunt resistor may reduce a total resistance of the read structure and any corresponding impedance mismatch between the read structure, a transmission line, and a preamplifier. The shunt resistor may be made of a material having a near zero thermal coefficient of resistivity (TCR) to test a quality of the TuMR read sensor. The TuMR read sensor may be deemed defective if its TCR deviates from a population average by a specific criterion. The TuMR read sensor may include a MgO tunneling barrier to improve signal strength. The TuMR read sensor may include a free layer that is able to be saturated with a perpendicular background field to calculate a more accurate TCR of the TuMR read sensor.

    摘要翻译： 滑块包括并联连接的隧道磁阻（TuMR）读取传感器和分流电阻。 分流电阻器可以位于滑块的读取结构中。 分流电阻器可以减小读结构的总电阻以及读结构，传输线和前置放大器之间的任何相应的阻抗失配。 分流电阻器可以由具有接近零的电阻率热阻（TCR）的材料制成，以测试TuMR读取传感器的质量。 如果TMR读取传感器的TCR偏离了一个特定标准的总体平均值，则可能被认为是有缺陷的。 TuMR读取传感器可以包括用于提高信号强度的MgO隧道势垒。 TuMR读取传感器可以包括能够用垂直背景场饱和的自由层，以计算TuMR读取传感器的更准确的TCR。

    System for measuring magnetostriction employing a plurality of external magnetic field rotation harmonics
    6.
    发明授权
    System for measuring magnetostriction employing a plurality of external magnetic field rotation harmonics 失效
    使用多个外部磁场旋转谐波测量磁致伸缩的系统

    公开(公告)号：US06664783B1

    公开(公告)日：2003-12-16

    申请号：US10197313

    申请日：2002-07-15

    申请人： Lydia Baril ,  Kenneth Donald Mackay

    发明人： Lydia Baril ,  Kenneth Donald Mackay

    IPC分类号： G01R3312

    CPC分类号： G01R33/18

    摘要： A system for measuring the magnetostriction coefficient &lgr; of a sample material applied to a substrate element fixed at one end leaving the other end free to be deflected. An external rotating magnetic field of rotation frequency f and intensity Hext is applied to the cantilever substrate element the amplitude Am of the deflection of the free end is measured at each of a plurality of rotation frequency harmonics {fm} by, for example, using a plurality of lock-in amplifiers. The harmonic deflection amplitudes {Am} are combined to determine the magnetostriction coefficient &lgr; of the sample material. At an Hext equal to the sample saturation moment Msat and assuming a 15 Oe sample anisotropy Hk and coupling bias Hp, the error in the saturation magnetostriction coefficient &lgr;S measured according to this invention may be reduced by 80% to 90% over the error seen when using only the second harmonic deflection amplitudes A2.

    摘要翻译： 用于测量施加到固定在一端的衬底元件的样品材料的磁致伸缩系数λ的系统，使另一端自由偏转。 将旋转频率f和强度Hext的外部旋转旋转磁场施加到悬臂基板元件，通过例如使用多个旋转频率谐波{fm}中的每一个在多个旋转频率谐波{fm}中测量自由端的偏转的振幅Am 多个锁定放大器。 组合谐波偏转振幅{Am}以确定样品材料的磁致伸缩系数λ。 在等于样本饱和时刻Msat的Hext和假设15 Oe采样各向异性Hk和耦合偏置Hp的情况下，根据本发明测量的饱和磁致伸缩系数λS中的误差可以比所看到的误差减小80％至90％ 仅使用二次谐波偏转幅度A2。

    Disk drive head reset for parked head using closely spaced magnet
    7.
    发明授权
    Disk drive head reset for parked head using closely spaced magnet 有权
    使用紧密间隔的磁铁的磁盘驱动器磁头复位

    公开(公告)号：US07474510B1

    公开(公告)日：2009-01-06

    申请号：US11031333

    申请日：2005-01-07

    申请人： Lydia Baril ,  Albert J Wallash

    发明人： Lydia Baril ,  Albert J Wallash

    IPC分类号： G11B5/54 ,  G11B21/22

    CPC分类号： G11B21/12 ,  G11B5/3903 ,  G11B5/465 ,  G11B2005/001

    摘要： A disk drive includes a magnet (152) for resetting a corresponding head (138). The magnet (152) is located on or close to a load/unload ramp (140′) that is used to park the head (138), such that the magnet (152) is spaced from its corresponding parked head (138) by distance of no more than about 1 millimeter when the head (138) is parked. The magnet (152) may be either a permanent magnet or an electromagnetic which induces a magnetic field upon the head (138) to reset its magnetization.

    摘要翻译： 磁盘驱动器包括用于复位相应磁头（138）的磁体（152）。 磁体（152）位于或靠近用于停放头部（138）的装载/卸载斜坡（140'），使得磁体（152）与其对应的停放头部（138）间隔距离 当头部（138）停放时不大于约1毫米。 磁体（152）可以是在磁头（138）上引起磁场以重置其磁化的永磁体或电磁体。

    Low thermal coefficient of resistivity on-slider tunneling magneto-resistive shunt resistor
    8.
    发明申请
    Low thermal coefficient of resistivity on-slider tunneling magneto-resistive shunt resistor 有权
    电阻率低热导系数隧道磁阻分流电阻的低热系数

    公开(公告)号：US20070091512A1

    公开(公告)日：2007-04-26

    申请号：US11582851

    申请日：2006-10-17

    申请人： Mark Nichols ,  Bill Higgins ,  Michael Mallary ,  Lydia Baril

    发明人： Mark Nichols ,  Bill Higgins ,  Michael Mallary ,  Lydia Baril

    IPC分类号： G11B5/33 ,  G11B5/187

    CPC分类号： G11B5/455 ,  G11B5/6005

    摘要： A slider includes a Tunneling Magneto-Resistive (TuMR) read sensor and a shunt resistor connected in parallel. The shunt resistor may be located in a read structure of the slider. The shunt resistor may reduce a total resistance of the read structure and any corresponding impedance mismatch between the read structure, a transmission line, and a preamplifier. The shunt resistor may be made of a material having a near zero thermal coefficient of resistivity (TCR) to test a quality of the TuMR read sensor. The TuMR read sensor may be deemed defective if its TCR deviates from a population average by a specific criterion. The TuMR read sensor may include a MgO tunneling barrier to improve signal strength. The TuMR read sensor may include a free layer that is able to be saturated with a perpendicular background field to calculate a more accurate TCR of the TuMR read sensor.

    摘要翻译： 滑块包括并联连接的隧道磁阻（TuMR）读取传感器和分流电阻。 分流电阻器可以位于滑块的读取结构中。 分流电阻器可以减小读结构的总电阻以及读结构，传输线和前置放大器之间的任何相应的阻抗失配。 分流电阻器可以由具有接近零的电阻率热阻（TCR）的材料制成，以测试TuMR读取传感器的质量。 如果TMR读取传感器的TCR偏离了一个特定标准的总体平均值，则可能被认为是有缺陷的。 TuMR读取传感器可以包括用于提高信号强度的MgO隧道势垒。 TuMR读取传感器可以包括能够用垂直背景场饱和的自由层，以计算TuMR读取传感器的更准确的TCR。