Write pole design
    11.
    发明授权

    公开(公告)号:US08619509B1

    公开(公告)日:2013-12-31

    申请号:US13569408

    申请日:2012-08-08

    IPC分类号: G11B11/00

    摘要: In an example, a method comprises aligning a central axis of a paddle portion on a write pole circuit to be substantially perpendicular to an adjacent magnetic surface, and bending a central axis of an extended tip portion relative to the central axis of the paddle portion. In another example, a transducer head comprises a write pole circuit having a paddle portion with a central axis, and an extended tip portion with a central axis, the central axis of the extended tip portion angled from the central axis of the paddle portion. In another example, a magnetic circuit comprises a write pole circuit having a paddle portion and an extended tip portion, the extended tip portion bending away from a central axis of the paddle portion, and a coil wrapping around the extended tip portion.

    MICROWAVE ASSISTED MAGNETIC RECORDING SYSTEM
    13.
    发明申请
    MICROWAVE ASSISTED MAGNETIC RECORDING SYSTEM 有权
    微波辅助磁记录系统

    公开(公告)号:US20090262457A1

    公开(公告)日:2009-10-22

    申请号:US12427534

    申请日:2009-04-21

    IPC分类号: G11B5/127

    CPC分类号: G11B5/1278 G11B2005/001

    摘要: A microwave assisted magnetic recording system includes a write pole that generates a write magnetic field, an element that generates a radio frequency assist magnetic field, and a recording medium that moves relative to the write pole. The recording medium is exposed to the radio frequency assist magnetic field before it is exposed to the write magnetic field. One possible element that generates the radio frequency assist magnetic field is an assist wire placed perpendicular to the write pole. Alternatively, the assist wire can be placed parallel to the write pole so that its radio frequency assist magnetic field couples with the write pole, which in turn generates its own coupled radio frequency magnetic field along with the write magnetic field.

    摘要翻译: 微波辅助磁记录系统包括产生写入磁场的写入极,产生射频辅助磁场的元件和相对于写入极运动的记录介质。 记录介质在暴露于写入磁场之前暴露于射频辅助磁场。 产生射频辅助磁场的一个可能元件是垂直于写入极放置的辅助线。 或者,辅助线可以平行于写入极放置,使得其射频辅助磁场与写入磁极耦合,该写入磁极又与写入磁场一起产生其自身的耦合的射频磁场。

    Integrated, on-board device and method for the protection of magnetoresistive heads from electrostatic discharge
    16.
    发明授权
    Integrated, on-board device and method for the protection of magnetoresistive heads from electrostatic discharge 有权
    用于保护磁阻头免受静电放电的集成的板上器件和方法

    公开(公告)号:US06667860B1

    公开(公告)日:2003-12-23

    申请号:US09680661

    申请日:2000-10-05

    IPC分类号: G11B540

    摘要: This invention discloses a circuit including a magnetoresistive sensor and a tunnel junction device coupled to the MR sensor to dissipate the energy associated with an electrical signal exceeding operational voltages for the sensor. The tunnel junction can include a first conducting layer, a second conducting layer, and a barrier material positioned between the first and the second conducting layer. The barrier material can be positioned so that the first conducting layer and the second conducting layer do not make contact. The MR sensor can be connected in parallel to the first and second conducting layer. The tunnel junction can be made of a material with a resistance more than the MR sensor's resistance at operational voltages and a resistance below the MR sensor's resistance at larger voltages. In another aspect of the invention, a method for fabricating the protected circuit including integrating a MR sensor on the circuit and coupling a tunnel junction to the MR sensor to dissipate an electrical signal exceeding operational voltages for the MR sensor is presented. The tunnel junction device can be fabricated during the fabrication of the circuit. The method can include fabricating the tunnel junction on the MR sensor.

    摘要翻译: 本发明公开了一种包括磁阻传感器和耦合到MR传感器的隧道结装置的电路,以消散与超过传感器的操作电压的电信号相关联的能量。 隧道结可以包括位于第一和第二导电层之间的第一导电层,第二导电层和阻挡材料。 阻挡材料可以被定位成使得第一导电层和第二导电层不接触。 MR传感器可以与第一和第二导电层并联连接。 隧道结可以由电阻大于MR传感器在工作电压下的电阻和在较大电压下低于MR传感器电阻的电阻制成。 在本发明的另一方面,提供了一种用于制造保护电路的方法,包括将MR传感器集成在电路上并将隧道结耦合到MR传感器以耗散超过MR传感器的操作电压的电信号。 在制造电路期间可以制造隧道结装置。 该方法可以包括在MR传感器上制造隧道结。