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    ELECTRICALLY REMOVABLE HEATER FOR A THERMALLY ACTUATABLE THERMAL ASPERITY SENSOR
    12.
    发明申请
    ELECTRICALLY REMOVABLE HEATER FOR A THERMALLY ACTUATABLE THERMAL ASPERITY SENSOR 有权
    用于热可驱动热平衡传感器的电热式除热器

    公开(公告)号：US20150162038A1

    公开(公告)日：2015-06-11

    申请号：US14097412

    申请日：2013-12-05

    Applicant: Seagate Technology LLC

    Inventor： Declan Macken ,  Erik Hutchinson ,  Brian William Karr

    IPC: G11B5/60 ,  G01N25/72 ,  G01K7/16

    CPC classification number: G11B5/607 ,  G01K13/00 ,  G01N25/72 ,  G11B5/6076

    Abstract: An apparatus comprising a writer, a reader, and a sensor configured to at least sense thermal asperities of a magnetic storage medium. The apparatus includes a writer heater configured to thermally actuate the writer, a reader heater configured to thermally actuate the reader, and a sensor heater configured to thermally actuate the sensor. The thermally actuated sensor is configured to detect thermal asperities arising from the magnetic storage medium during a topographical survey of the medium. The sensor heater is configured to be rendered inoperable subsequent to the survey in response to receiving a predetermined signal while the writer and the reader heaters remain operable.

    Abstract translation: 一种包括写入器，读取器和传感器的设备，其被配置为至少感测磁存储介质的热凹凸。 该装置包括配置为热启动写入器的写入器加热器，被配置为热致动读取器的读取器加热器和被配置为热致动传感器的传感器加热器。 热致动传感器被配置为在介质的地形测量期间检测由磁存储介质产生的热凹凸。 传感器加热器被配置为在写入器和读取器加热器保持可操作时响应于接收到预定信号而在调查之后变得不可操作。

    HEAD TRANSDUCER WITH MULTIPLE RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIUM SPACING AND CONTACT DETECTION
    13.
    发明申请
    HEAD TRANSDUCER WITH MULTIPLE RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIUM SPACING AND CONTACT DETECTION 审中-公开
    具有多电阻温度传感器的头传感器用于中间间隔和接触检测

    公开(公告)号：US20140355150A1

    公开(公告)日：2014-12-04

    申请号：US14457694

    申请日：2014-08-12

    Applicant: Seagate Technology LLC

    Inventor： Michael Thomas Johnson ,  Dongming Liu ,  Huazhou Lou ,  Declan Macken ,  Timothy William Stoebe ,  James Gary Wessel ,  Xuan Zheng

    IPC: G11B5/60

    CPC classification number: G11B5/607 ,  G01K13/00 ,  G11B5/024 ,  G11B5/3133 ,  G11B5/6011 ,  G11B5/6076 ,  G11B7/0948 ,  G11B7/121 ,  G11B20/10 ,  G11B27/36

    Abstract: A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.

    Abstract translation: 被配置为与磁记录介质相互作用的头传感器包括具有温度系数电阻（TCR）并被配置为产生第一传感器信号的第一传感器，以及具有TCR并被配置为产生第二传感器信号的第二传感器 。 第一传感器和第二传感器中的一个位于头部换能器相对于磁记录介质的接近点附近，并且第一传感器和第二传感器中的另一个与近端点间隔开。 电路被配置为组合第一和第二传感器信号并产生指示头 - 介质间隔和头 - 介质接触的变化中的一个或两个的组合的传感器信号。 每个传感器可以具有相同符号（正或负）的TCR，或者每个传感器可以具有不同符号的TCR。

    Split contact sensor for a heat-assisted magnetic recording slider
    14.
    发明授权
    Split contact sensor for a heat-assisted magnetic recording slider 有权

    公开(公告)号：US11011191B2

    公开(公告)日：2021-05-18

    申请号：US16854403

    申请日：2020-04-21

    Applicant: Seagate Technology LLC

    Inventor： Erik Jon Hutchinson ,  Declan Macken ,  Manuel Charles Anaya-Dufresne

    IPC: G11B11/105 ,  G11B5/31 ,  G11B5/48 ,  G11B5/60 ,  G11B5/00

    Abstract: An apparatus comprises a slider having an air bearing surface (ABS), a leading edge, and a trailing edge opposing the leading edge. A writer having a write pole is situated at or near the ABS. A near-field transducer (NFT) is situated at or near the ABS and between the write pole and the leading edge of the slider. An optical waveguide is configured to couple light from a laser source to the NFT. A contact sensor is situated between the write pole and the trailing edge. The contact sensor comprises a first ABS section situated at or near the ABS, a second ABS section situated at or near the ABS and spaced apart from the first ABS in a cross-track direction by a gap, and a distal section extending away from the ABS and connecting the first ABS section with the second ABS section.

    Bond-pad sharing for head-level thermocouple
    16.
    发明授权
    Bond-pad sharing for head-level thermocouple 有权

    公开(公告)号：US10803886B1

    公开(公告)日：2020-10-13

    申请号：US16234831

    申请日：2018-12-28

    Applicant: Seagate Technology LLC

    Inventor： Declan Macken ,  Michael Thomas Johnson ,  Todd Michael Lammers ,  Kent Edward Bodurtha

    IPC: G11B5/48 ,  G11B5/012 ,  G11B5/31 ,  G11B5/00 ,  G11B5/60

    Abstract: An apparatus includes a slider configured for heat-assisted magnetic recording, the slider comprising an air bearing surface (ABS), a writer, a reader, and a plurality of electrical bond-pads. The apparatus also includes a first component situated at the ABS of the slider proximate the reader and operatively coupled to a first pair of the plurality of electrical bond-pads, the first component being a thermocouple configured to sense for a thermal aspect of a magnetic recording medium surface. According to aspects of the invention, the slider is configured to share at least one bond-pad by operatively coupling a second pair of the plurality of electrical bond-pads to a second component, and the slider is configured to selectively utilize the thermocouple and the second component.

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