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    Spring loaded head for reduced fly height and tracking control
    1.
    发明申请
    Spring loaded head for reduced fly height and tracking control 有权
    弹簧加载头减少飞行高度和跟踪控制

    公开(公告)号：US20080239579A1

    公开(公告)日：2008-10-02

    申请号：US11729068

    申请日：2007-03-28

    Applicant: Michael Allen Seigler ,  Robert Earl Rottmayer

    Inventor： Michael Allen Seigler ,  Robert Earl Rottmayer

    IPC: G11B5/48

    CPC classification number: G11B5/4826 ,  G11B5/6011

    Abstract: An apparatus includes a body having a first air bearing surface and defining an opening, and a transducer portion having a second air bearing surface and positioned within the opening and coupled to the body by a plurality of spring members extending from the transducer portion to the body.

    Abstract translation: 一种设备包括具有第一空气轴承表面并限定开口的主体和具有第二空气支承表面并且定位在开口内并且通过多个弹簧构件耦合到主体的换能器部分，该弹簧构件从换能器部分延伸到主体 。

    Read/write head having a GMR sensor biased by permanent magnets located between the GMR and the pole shields
    3.
    发明授权
    Read/write head having a GMR sensor biased by permanent magnets located between the GMR and the pole shields 失效
    具有由位于GMR和极屏蔽之间的永磁体偏置的GMR传感器的读/写头

    公开(公告)号：US5883763A

    公开(公告)日：1999-03-16

    申请号：US912827

    申请日：1997-08-19

    Applicant: Samuel W. Yuan ,  Robert Earl Rottmayer ,  Matthew J. Carey

    Inventor： Samuel W. Yuan ,  Robert Earl Rottmayer ,  Matthew J. Carey

    IPC: G11B5/39

    CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/3903 ,  G11B5/3967 ,  G11B2005/3996

    Abstract: A compact read/write head having a biased giant magnetoresistive sensor. Permanent magnet films are placed adjacent to the giant magnetoresistive sensor operating in the current-perpendicular-to the-plane (Cpp) mode and spaced with respect to the sensor by conducting films. These permanent magnet films provide a magnetic bias. The bias field is substantial and fairly uniform across sensor height. Biasing of the giant magnetoresistive sensor provides distinguishable response to the rising and falling edges of a recorded pulse on an adjacent recording medium, improves the linearity of the response, and helps to reduce noise. This read/write head is much simpler to fabricate and pattern and provides an enhanced uniformity of the bias field throughout the sensor.

    Abstract translation: 具有偏置的巨磁阻传感器的紧凑型读/写头。 永磁体膜被放置在与电流垂直于平面（Cpp）模式工作的巨磁阻传感器相邻并且通过导电膜相对于传感器间隔开。 这些永磁体膜提供磁偏置。 偏置场在传感器高度上是相当均匀且相当均匀的。 巨磁阻传感器的偏置对相邻记录介质上的记录脉冲的上升沿和下降沿提供了可区别的响应，提高了响应的线性度，并有助于降低噪声。 这种读/写头比制造和图案要简单得多，并提供整个传感器偏置场的均匀性。

    High density giant magnetoresistive transducer with recessed sensor
    6.
    发明授权
    High density giant magnetoresistive transducer with recessed sensor 失效
    具有凹陷传感器的高密度巨磁阻传感器

    公开(公告)号：US06219205B1

    公开(公告)日：2001-04-17

    申请号：US08541441

    申请日：1995-10-10

    Applicant: Samuel W. Yuan ,  Robert Earl Rottmayer

    Inventor： Samuel W. Yuan ,  Robert Earl Rottmayer

    IPC: G11B539

    CPC classification number: B82Y25/00 ,  B82Y10/00 ,  G11B5/3116 ,  G11B5/3163 ,  G11B5/3166 ,  G11B5/3903 ,  G11B5/40 ,  G11B2005/3996

    Abstract: A magnetic transducer employs a giant magnetoresistive sensor whose sensing surface is separated by a dielectric layer from a magnetically recorded surface carrying recorded data signals to be read back by the transducer. The dielectric layer serves to protect the sensing layer from corrosion, electrostatic discharge from the record surface, mechanical damage from asperities, thermal asperities from heating resulting from close contact between the transducer and the record surface, and damage from exposure during lapping operations. This structure also reduces the readback pulse width and offtrack assymmetry, and improves servo linearity, thereby increasing recording density. The reduced signal amplitude is compensated for by the use of a giant magnetoresistive transducer with an intrinsically large output. The use of the recessed transducer reduces saturation of the transducer due to the record medium flux at reduced signal amplitudes, thereby increasing readback efficiency.

    Abstract translation: 磁传感器采用巨磁电阻传感​​器，其感测表面由介质层与磁记录表面分开，承载记录的数据信号，由传感器回读。 电介质层用于保护感测层免受腐蚀，记录表面的静电放电，粗糙度的机械损伤，由传感器和记录表面之间的紧密接触导致的加热产生的热不均匀性以及研磨操作期间曝光造成的损坏。 这种结构还减少了回读脉冲宽度和偏移不对称性，并且提高了伺服线性度，从而提高了记录密度。 降低的信号幅度通过使用具有固有大输出的巨磁阻换能器来补偿。 凹陷传感器的使用由于信号幅度减小的记录介质通量而降低了传感器的饱和度，从而提高了回读效率。

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