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    Bond pad sharing for powering multiple writers of a recording head
    21.
    发明授权
    Bond pad sharing for powering multiple writers of a recording head 有权

    公开(公告)号：US09607641B1

    公开(公告)日：2017-03-28

    申请号：US15007756

    申请日：2016-01-27

    Applicant: Seagate Technology LLC

    Inventor： Narayanan Ramakrishnan ,  Declan Macken

    IPC: G11B11/00 ,  G11B5/60 ,  G11B5/00

    CPC classification number: G11B5/4853 ,  G11B5/607 ,  G11B2005/0021

    Abstract: A slider of a magnetic recording head comprises a plurality of electrical bond pads coupled to bias sources. A first writer on the slider is coupled between first and second bond pads. A second writer on the slider is coupled between third and fourth bond pads. At least one heater is coupled between two of the first, second, third, and fourth bond pads. The first writer can have a center-tap coupled to first and second bond pads. The second writer can have a center-tap coupled to third and fourth bond pads. A first writer heater can be coupled between the center-tap of the second writer and the ground pad. A second writer heater can be coupled between the center-tap of the first writer and the ground pad.

    Recording head with electrically removable component
    23.
    发明授权
    Recording head with electrically removable component 有权
    记录头与电可拆卸组件

    公开(公告)号：US09558774B1

    公开(公告)日：2017-01-31

    申请号：US14865341

    申请日：2015-09-25

    Applicant: Seagate Technology LLC

    Inventor： Declan Macken

    IPC: G11B5/60 ,  G11B19/04 ,  G11B5/31 ,  G11B5/00

    CPC classification number: G11B5/6076 ,  G11B5/10 ,  G11B5/3106 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/6005 ,  G11B5/607 ,  G11B19/048 ,  G11B2005/0021

    Abstract: An apparatus includes a slider of a magnetic recording transducer comprising a plurality of electrical bond pads. A component is coupled to a pair of the electrical bond pads. A sensor is coupled to the pair of the electrical bond pads in parallel with the component. The sensor is configured to sense for one or more of thermal asperities of a magnetic recording medium, voids of the medium, spacing changes between the slider and the medium, and contact between the slider and the medium. The sensor is configured to be rendered non-functional in response to the sensor receiving a predetermined signal. The component is configured to remain operable after the sensor is rendered non-functional.

    Abstract translation: 一种装置包括包括多个电接合焊盘的磁记录换能器的滑块。 组件耦合到一对电接合焊盘。 传感器与该组件平行地耦合到一对电接合焊盘。 传感器被配置为感测磁记录介质的热凹凸，介质的空隙，滑块和介质之间的间隔变化以及滑块和介质之间的接触中的一个或多个。 传感器被配置为响应于传感器接收到预定信号而变得不起作用。 该组件被配置为在传感器变得不起作用之后保持可操作。

    SENSING TEMPERATURE AT A SLIDER PROTRUSION REGION
    26.
    发明申请
    SENSING TEMPERATURE AT A SLIDER PROTRUSION REGION 审中-公开
    感应温度在滑块推动区域

    公开(公告)号：US20150003223A1

    公开(公告)日：2015-01-01

    申请号：US14486220

    申请日：2014-09-15

    Applicant: Seagate Technology LLC

    Inventor： Declan Macken ,  James Dillon Kiely ,  Manuel Charles Anaya-Dufresne

    IPC: G11B5/60 ,  G11B5/48

    CPC classification number: G11B5/607 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6005 ,  G11B5/6011 ,  G11B5/6088 ,  G11B27/17 ,  G11B2005/0021

    Abstract: An apparatus includes a near-field transducer at or near an air bearing surface of the apparatus. A write pole is disposed at or near the air bearing surface and proximate the near-field transducer, respectively. A thermal sensor is disposed at the air bearing surface and within a protrusion region of the air bearing surface defined relative to at least one of the near-field transducer and the write pole. The thermal sensor is configured to produce a signal indicative of a temperature at the protrusion region.

    Abstract translation: 一种装置包括在装置的空气轴承表面处或附近的近场换能器。 写入极分别设置在空气支承表面处或靠近近场传感器处。 热传感器设置在空气轴承表面和在相对于近场换能器和写极中的至少一个限定的空气轴承表面的突出区域内。 热传感器被配置为产生指示突出区域处的温度的信号。

    Bond pad sharing in head slider using null point center tap
    30.
    发明授权
    Bond pad sharing in head slider using null point center tap 有权

    公开(公告)号：US10186291B1

    公开(公告)日：2019-01-22

    申请号：US15603730

    申请日：2017-05-24

    Applicant: Seagate Technology LLC

    Inventor： Narayanan Ramakrishnan ,  Jon Karsten Klarqvist ,  James G. Wessel ,  Declan Macken

    IPC: G11B5/48 ,  G11B5/60 ,  G11B5/31

    Abstract: A head slider for use in a disk drive is movably positionable relative to a magnetic recording disk and includes at least one write element for writing data to the magnetic recording disk. The write element includes a writer coil electrically connected between a first bond pad and a second bond pad, where the connection between the first bond pad and the second bond pad includes a center tap located proximate to a voltage null point. The head slider also includes at least one read element for reading data from the magnetic recording disk, the read element electrically connected between the center tap and a third bond pad, where the write element and the read element are configured to be selectively activated based on biased inputs to the first bond pad, the second bond pad, and the third bond pad.

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