公开(公告)号：US09177577B2

公开(公告)日：2015-11-03

申请号：US14720276

申请日：2015-05-22

Applicant: Seagate Technology LLC

Inventor： Declan Macken ,  James Dillon Kiely

IPC: G11B5/48 ,  G11B5/00

CPC classification number: G11B5/4866 ,  G11B5/314 ,  G11B5/6076 ,  G11B5/6088 ,  G11B13/08 ,  G11B21/21 ,  G11B2005/0021

Abstract: An apparatus includes a writer, an arrangement comprising a plasmonic near-field transducer (NFT) adjacent the writer and comprising a material having a temperature coefficient of resistance (TCR), and a lead arrangement connected to the NFT arrangement. In some configurations, the NFT arrangement includes a heat sink, and the lead arrangement is connected to the heat sink. In other configurations, the lead arrangement is connected directly to the NFT.

Abstract translation: 一种设备包括写入器，包括邻近写入器的等离子体近场换能器（NFT）的布置，并且包括具有温度系数电阻（TCR）的材料和连接到NFT布置的引线装置。 在一些配置中，NFT装置包括散热器，并且引线装置连接到散热器。 在其他配置中，引线装置直接连接到NFT。

公开(公告)号：US20150170680A1

公开(公告)日：2015-06-18

申请号：US14574829

申请日：2014-12-18

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Declan Macken ,  Eric Singleton ,  Scott Stokes

IPC: G11B5/11 ,  G11B5/60

CPC classification number: G11B5/11 ,  G11B5/397 ,  G11B5/4886

Abstract: Devices having an air bearing surface (ABS), the device including a first read sensor; a first read sensor shield; and a first stray field shield, wherein the first read sensor shield is configured to shield at least the first read sensor from magnetic fields of the device, and the first stray field shield is configured to shield the first read sensor from stray environmental magnetic fields.

Abstract translation: 具有空气轴承表面（ABS）的装置，该装置包括第一读取传感器; 第一个读取传感器屏蔽; 以及第一杂散场屏蔽，其中所述第一读取传感器屏蔽被配置为至少屏蔽所述第一读取传感器与所述设备的磁场，并且所述第一杂散场屏蔽被配置为将所述第一读取传感器屏蔽在杂散环境磁场中。

公开(公告)号：US20150162022A1

公开(公告)日：2015-06-11

申请号：US14099035

申请日：2013-12-06

Applicant: Seagate Technology LLC

Inventor： Peng Peng ,  Zhen Wei ,  Declan Macken ,  Darreyl Sedbrook ,  Muhammed Mujahid Khan

IPC: G11B5/03

CPC classification number: G11B5/4866 ,  G11B5/02 ,  G11B5/3133 ,  G11B5/3945 ,  G11B5/607 ,  G11B5/6076

Abstract: A first biasing potential is sent to a first input end of a first temperature coefficient of resistance (TCR) sensor having a first ground end coupled to a ground potential. A second biasing potential is sent to a second input end of a second TCR sensor having a second ground end coupled to the ground potential. The first and the second biasing potentials are changed to operate in a plurality of modes.

Abstract translation: 第一偏置电位被发送到具有耦合到地电位的第一接地端的第一温度系数电阻（TCR）传感器的第一输入端。 第二偏置电位被发送到具有耦合到地电位的第二接地端的第二TCR传感器的第二输入端。 第一和第二偏置电位被改变为以多种模式操作。

公开(公告)号：US09030773B2

公开(公告)日：2015-05-12

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: G11B5/02 ,  G11B5/60 ,  G11B27/17 ,  G11B5/31 ,  G11B5/48 ,  G11B5/00

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。

公开(公告)号：US20150085630A1

公开(公告)日：2015-03-26

申请号：US14038099

申请日：2013-09-26

Applicant: Seagate Technology LLC

Inventor： Declan Macken ,  James Dillon Kiely

IPC: G11B21/21 ,  G11B5/48 ,  G11B13/08

CPC classification number: G11B5/4866 ,  G11B5/314 ,  G11B5/6076 ,  G11B5/6088 ,  G11B13/08 ,  G11B21/21 ,  G11B2005/0021

Abstract: An apparatus includes a writer, an arrangement comprising a plasmonic near-field transducer (NFT) adjacent the writer and comprising a material having a temperature coefficient of resistance (TCR), and a lead arrangement connected to the NFT arrangement. In some configurations, the NFT arrangement includes a heat sink, and the lead arrangement is connected to the heat sink. In other configurations, the lead arrangement is connected directly to the NFT.

Abstract translation: 一种设备包括写入器，包括邻近写入器的等离子体近场换能器（NFT）的布置，并且包括具有温度系数电阻（TCR）的材料和连接到NFT布置的引线装置。 在一些配置中，NFT装置包括散热器，并且引线装置连接到散热器。 在其他配置中，引线装置直接连接到NFT。

公开(公告)号：US08937791B1

公开(公告)日：2015-01-20

申请号：US14091451

申请日：2013-11-27

Applicant: Seagate Technology LLC

Inventor： Daniel W. Olson ,  Declan Macken

IPC: G11B5/60

CPC classification number: G11B5/607 ,  G11B5/3133

Abstract: A slider having a slider body having an air bearing surface, a leading edge and a trailing edge, and a transducer on the air bearing surface proximate the trailing edge, the transducer comprising a read sensor and a write sensor. The slider also has a heater, positioned proximate the transducer, and a continuous dielectric layer comprising a dielectric material having a coefficient of thermal conductivity of at least 20 W/m-K, the dielectric layer positioned adjacent to and in contact with the heater and between the heater and the transducer.

Abstract translation: 具有滑动体的滑块具有空气轴承表面，前缘和后缘以及靠近后缘的空气轴承表面上的换能器，换能器包括读取传感器和写入传感器。 滑块还具有位于换能器附近的加热器，以及包括介电材料的连续电介质层，介电材料具有至少20W / mK的导热系数，介电层位于与加热器相邻并且与加热器接触 加热器和传感器。

公开(公告)号：US20140269819A1

公开(公告)日：2014-09-18

申请号：US13802386

申请日：2013-03-13

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： James Dillon Kiely ,  Karl Scheppers ,  Declan Macken ,  Michael Thomas Johnson

IPC: G01B21/16

CPC classification number: G11B5/6076 ,  G11B5/3116 ,  G11B5/3133 ,  G11B5/3136 ,  G11B5/314 ,  G11B5/607 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus is arranged to detect contact between an air bearing surface of a transducer and a medium using a modulated thermal sensor signal. A laser source produces modulated laser light. A thermal sensor is disposed at or near the air bearing surface and is subject to cyclic heating by the modulated laser light. The thermal sensor is configured to produce the modulated sensor signal in response to the cyclic heating.

Abstract translation: 一种装置被布置成使用调制的热传感器信号检测换能器的空气轴承表面和介质之间的接触。 激光源产生调制激光。 热传感器设置在空气轴承表面上或附近，并且通过调制的激光进行循环加热。 热传感器被配置为响应于循环加热产生调制的传感器信号。

公开(公告)号：US20140268410A1

公开(公告)日：2014-09-18

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: G11B20/10

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。

公开(公告)号：US08837071B2

公开(公告)日：2014-09-16

申请号：US13797840

申请日：2013-03-12

Applicant: Seagate Technology LLC

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

IPC: G11B5/02 ,  G11B5/31 ,  G11B5/60 ,  G11B27/17 ,  G11B5/00

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。

公开(公告)号：US11120826B1

公开(公告)日：2021-09-14

申请号：US17087065

申请日：2020-11-02

Applicant: Seagate Technology LLC

Inventor： Michael Thomas Johnson ,  Peng Peng ,  Declan Macken

IPC: G11B5/60

Abstract: The present disclosure includes systems and methods for using a comparator-based, relaxation oscillator circuit to detect capacitance of a capacitor formed between a metallic feature in a read/write head and a metallic feature in a storage medium.