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    ARTICLES FOR LAPPING STACKED ROW BARS HAVING IN-WAFER ELG CIRCUITS
    1.
    发明申请
    ARTICLES FOR LAPPING STACKED ROW BARS HAVING IN-WAFER ELG CIRCUITS 审中-公开

    公开(公告)号：US20200147748A1

    公开(公告)日：2020-05-14

    申请号：US16728251

    申请日：2019-12-27

    Applicant: Seagate Technology LLC

    Inventor： Gary Joseph Kunkel ,  Zoran Jandric

    IPC: B24B37/013 ,  B24B37/04 ,  G11B5/31

    Abstract: An assembly for lapping multiple row bars, the assembly including a carrier having at least one carrier bond pad, multiple row bars adjacent to each other in a stack, wherein a first row bar of the stack is positioned closer to the carrier than any of the other multiple row bars of the stack and comprises at least one row bar bond pad, an electrical connection between at least one of the carrier bond pads and at least one of the row bar bond pads of the first row bar, and at least one electrical trace extending through at least two of the multiple row bars and electrically connected to at least the first row bar and one additional row bar of the stack. An outermost row bar of the stack includes an outer surface and at least one electronic lapping guide.

    Resistance temperature sensors for head-media and asperity detection
    4.
    发明授权
    Resistance temperature sensors for head-media and asperity detection 有权
    电阻温度传感器用于头部介质和粗糙度检测

    公开(公告)号：US09230594B2

    公开(公告)日：2016-01-05

    申请号：US14287419

    申请日：2014-05-27

    Applicant: Seagate Technology LLC

    Inventor： Gary Joseph Kunkel ,  Huazhou Lou ,  Declan Macken ,  Timothy William Stoebe

    IPC: G11B21/02 ,  G11B20/10 ,  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 temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities.

    Abstract translation: 头传感器的温度传感器测量靠近或接近的温度。 测量的温度响应于头部换能器和磁记录介质之间的间隔的变化而变化。 检测器耦合到温度传感器并且被配置为检测指示头部换能器和介质之间的接触开始的测量温度的DC分量的变化。 另一个头部传感器配置包括传感器，该传感器具有具有高温度系数的传感元件，以与介质的粗糙度相互作用。 导电引线连接到感测元件并且具有相对于感测元件的电阻的低温度系数，引线中的这种热感应电阻变化对感测元件与凹凸接触的响应具有可忽略的影响。

    ASPERITY AND HEAD-MEDIA CONTACT DETECTION USING MULTI-STAGE TEMPERATURE COEFFICIENT OF RESISTANCE SENSOR
    5.
    发明申请
    ASPERITY AND HEAD-MEDIA CONTACT DETECTION USING MULTI-STAGE TEMPERATURE COEFFICIENT OF RESISTANCE SENSOR 审中-公开
    使用电阻传感器的多级温度系数进行平台和头部介质接触检测

    公开(公告)号：US20150380021A1

    公开(公告)日：2015-12-31

    申请号：US14827584

    申请日：2015-08-17

    Applicant: Seagate Technology LLC

    Inventor： Gary Joseph Kunkel ,  John L. Brand

    IPC: G11B5/31

    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 multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.

    Abstract translation: 多级传感器位于头部传感器上并被配置为与磁记录介质相互作用。 多级传感器的第一传感器级具有电阻的温度系数。 多级传感器的第二传感器级耦合到第一传感器并具有电阻的温度系数。 第一传感器级被配置为优先地感测相对于第二传感器级的介质的不均匀性，并且第二传感器级被配置为优先地感测与介质相对于第一传感器级的表面的接近和接触。 第一和第二传感器级可以串联或并联连接。

    ASPERITY AND HEAD-MEDIA CONTACT DETECTION USING MULTI-STAGE TEMPERATURE COEFFICIENT OF RESISTANCE SENSOR
    6.
    发明申请
    ASPERITY AND HEAD-MEDIA CONTACT DETECTION USING MULTI-STAGE TEMPERATURE COEFFICIENT OF RESISTANCE SENSOR 审中-公开
    使用电阻传感器的多级温度系数进行平台和头部介质接触检测

    公开(公告)号：US20140268419A1

    公开(公告)日：2014-09-18

    申请号：US14287412

    申请日：2014-05-27

    Applicant: Seagate Technology LLC

    Inventor： Gary Joseph Kunkel ,  John L. Brand

    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 multi-stage sensor is situated on the head transducer and configured to interact with a magnetic recording medium. A first sensor stage of the multi-stage sensor has a temperature coefficient of resistance. A second sensor stage of the multi-stage sensor is coupled to the first sensor and has a temperature coefficient of resistance. The first sensor stage is configured to preferentially sense asperities of the media relative to the second sensor stage, and the second sensor stage configured to preferentially sense proximity to, and contact with, a surface of the media relative to the first sensor stage. The first and second sensor stages may be connected in series or in parallel.

    Abstract translation: 多级传感器位于头部传感器上并被配置为与磁记录介质相互作用。 多级传感器的第一传感器级具有电阻的温度系数。 多级传感器的第二传感器级耦合到第一传感器并具有电阻的温度系数。 第一传感器级被配置为优先地感测相对于第二传感器级的介质的不均匀性，并且第二传感器级被配置为优先地感测与介质相对于第一传感器级的表面的接近和接触。 第一和第二传感器级可以串联或并联连接。

    RESISTIVE TEMPERATURE SENSORS FOR IMPROVED ASPERITY, HEAD-MEDIA SPACING, AND/OR HEAD-MEDIA CONTACT DETECTION
    8.
    发明申请
    RESISTIVE TEMPERATURE SENSORS FOR IMPROVED ASPERITY, HEAD-MEDIA SPACING, AND/OR HEAD-MEDIA CONTACT DETECTION 审中-公开
    电阻温度传感器用于改进的平台，头部介质间隔和/或头部介质接触检测

    公开(公告)号：US20160372144A1

    公开(公告)日：2016-12-22

    申请号：US15251663

    申请日：2016-08-30

    Applicant: Seagate Technology LLC

    Inventor： Manuel Charles Anaya-Dufresne ,  Brian William Karr ,  Gary Joseph Kunkel ,  Zhen Wei

    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 sensor supported by a head transducer has a temperature coefficient of resistance (TCR) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. Conductive contacts connected to the sensor have a contact resistance and a cross-sectional area adjacent to the sensor larger than that of the sensor, such that the contact resistance is small relative to the sensor resistance and negligibly contributes to a signal generated by the sensor. A multiplicity of head transducers each support a TCR sensor and a power source can supply bias power to each sensor of each head to maintain each sensor at a fixed temperature above an ambient temperature in the presence of heat transfer changes impacting the sensors. A TCR sensor of a head transducer can include a track-oriented TCR sensor wire for sensing one or both of asperities of the medium.

    Abstract translation: 由头部换能器支撑的传感器具有电阻温度系数（TCR）和传感器电阻。 传感器在高于环境温度的温度下工作，并响应传感器 - 介质间距的变化。 连接到传感器的导电触头具有与传感器相邻的接触电阻和与传感器相邻的横截面面积，使得接触电阻相对于传感器电阻较小，并且对传感器产生的信号可忽略不计。 多个头传感器各自支持TCR传感器，并且电源可以向每个头部的每个传感器提供偏置功率，以在存在影响传感器的热传递变化的情况下将每个传感器维持在高于环境温度的固定温度。 头传感器的TCR传感器可以包括用于感测介质的粗糙体中的一个或两个的面向轨道的TCR传感器线。

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