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    Heat-assisted recording head having sub wavelength mirror formed of first and second materials
    3.
    发明授权
    Heat-assisted recording head having sub wavelength mirror formed of first and second materials 有权

    公开(公告)号：US10964340B1

    公开(公告)日：2021-03-30

    申请号：US16855047

    申请日：2020-04-22

    Applicant: Seagate Technology LLC

    Inventor： Weibin Chen ,  Nan Zhou ,  Ruoxi Yang ,  Michael Allen Seigler

    IPC: G11B5/39 ,  G11B5/48 ,  G11B5/00

    Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. The near-field transducer extends a first distance away from the media-facing surface. A waveguide overlaps and delivers light to the near-field transducer. Two subwavelength focusing mirrors are at an end of the waveguide proximate the media-facing surface and extend a second distance away from the media-facing surface that is less than the first distance. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface; and a second material facing away from the media facing surface and in contact with the first material. The second material includes a plasmonic material, and the first material is more mechanically robust than the second material.

    NEAR-FIELD TRANSDUCER DIELECTRIC LAYER
    5.
    发明申请
    NEAR-FIELD TRANSDUCER DIELECTRIC LAYER 审中-公开

    公开(公告)号：US20190057717A1

    公开(公告)日：2019-02-21

    申请号：US15679368

    申请日：2017-08-17

    Applicant: Seagate Technology LLC

    Inventor： Weibin Chen

    IPC: G11B5/60

    Abstract: An apparatus comprises a slider having an air bearing surface (ABS) that is configured for heat-assisted magnetic recording and comprises a write pole and a near-field transducer. The near-field transducer comprises a peg, an enlarged portion, and a dielectric layer. The peg has a front surface proximate the ABS, an opposing back surface, a top surface facing the write pole, two side surfaces, and a bottom surface opposing the top surface. The enlarged portion surrounds a portion of the peg including the back surface and has a front edge facing the ABS, wherein the distance from the ABS to the front edge is larger than the distance from the ABS to the front surface. The dielectric layer is disposed on a portion of the top surface of the peg and extends from the back surface of the peg to the front edge.

    NEAR-FIELD TRANSDUCER WITH TAPERED PEG
    7.
    发明申请
    NEAR-FIELD TRANSDUCER WITH TAPERED PEG 审中-公开
    带锥形PEG的近场传感器

    公开(公告)号：US20170032811A1

    公开(公告)日：2017-02-02

    申请号：US15221991

    申请日：2016-07-28

    Applicant: Seagate Technology LLC

    Inventor： Weibin Chen

    IPC: G11B5/60

    CPC classification number: G11B5/6082 ,  G11B5/6088 ,  G11B11/10506 ,  G11B11/1051 ,  G11B11/10534 ,  G11B11/10536 ,  G11B11/10539 ,  G11B2005/0021

    Abstract: An apparatus includes a waveguide that delivers energy from an energy source, a write pole located proximate the waveguide at a media-facing surface, and a near-field transducer located proximate the write pole in a down track direction. The near-field transducer includes an enlarged portion and a peg extending from the enlarged portion towards the media-facing surface. The peg comprises a taper facing away from the write pole, and the taper causes a reduced down track dimension of the peg near the media-facing surface.

    Abstract translation: 一种装置包括从能量源传递能量的波导，位于面向介质表面的波导附近的写入极和位于沿着磁道方向的写极附近的近场换能器。 近场换能器包括从扩大部分延伸到面向介质的表面的扩大部分和钉。 钉子包括一个朝向远离写入杆的锥形，并且该锥形导致靠近面向介质的表面的钉的减小的轨迹尺寸。

    NEAR-FIELD TRANSDUCER WITH ENLARGED REGION, PEG REGION, AND HEAT SINK REGION
    8.
    发明申请
    NEAR-FIELD TRANSDUCER WITH ENLARGED REGION, PEG REGION, AND HEAT SINK REGION 有权
    具有扩展区域，PEG区域和散热区域的近场传感器

    公开(公告)号：US20150043315A1

    公开(公告)日：2015-02-12

    申请号：US13961638

    申请日：2013-08-07

    Applicant: Seagate Technology LLC

    Inventor： Weibin Chen ,  Chubing Peng ,  Werner Scholz

    IPC: G11B13/08 ,  G11B5/48

    CPC classification number: G11B5/3133 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B2005/0021

    Abstract: A near-field transducer includes an enlarged region having a top side adjacent to a magnetic pole, a base side opposite the top side, and a circumference that extends from proximal to a media-facing surface to distal to a media-facing surface. The near-field transducer includes a peg region in contact with a region of the bas side of the enlarged region, the peg region extending from the enlarged region towards the media-facing surface. The near-field transducer also includes a heat sink region having a contact side, a base side, and a circumference that extends from proximal to the media-facing surface to distal from the media-facing surface. The contact side of the heat sink region is in thermal contact with both the peg region and at least a region of the base side of the enlarged region.

    Abstract translation: 近场换能器包括具有与磁极相邻的顶侧的扩大区域，与顶侧相对的底侧，以及从近侧到面向介质的表面延伸到面向介质的表面的远侧的圆周。 近场换能器包括与放大区域的底侧的区域接触的钉区域，该钉区域从扩大区域朝着面向介质的表面延伸。 近场换能器还包括具有接触侧，底侧和从近侧到面向介质的表面延伸到远离介质面向表面的圆周的散热区。 散热片区域的接触侧与扩大区域的至少一个区域和基部侧的区域热接触。

    HEAT-ASSISTED RECORDING HEAD HAVING SUBWAVELENGTH MIRROR FORMED OF FIRST AND SECOND MATERIALS
    10.
    发明申请
    HEAT-ASSISTED RECORDING HEAD HAVING SUBWAVELENGTH MIRROR FORMED OF FIRST AND SECOND MATERIALS 有权

    公开(公告)号：US20210249039A1

    公开(公告)日：2021-08-12

    申请号：US17216017

    申请日：2021-03-29

    Applicant: Seagate Technology LLC

    Inventor： Weibin Chen ,  Nan Zhou ,  Ruoxi Yang ,  Michael Allen Seigler

    IPC: G11B5/39 ,  G11B5/48

    Abstract: A recording head has a near-field transducer proximate a media-facing surface of the recording head. The near-field transducer extends a first distance away from the media-facing surface. A waveguide overlaps and delivers light to the near-field transducer. Two subwavelength focusing mirrors are at an end of the waveguide proximate the media-facing surface. The subwavelength mirrors are on opposite crosstrack sides of the near-field transducer and separated from each other by a crosstrack gap. The subwavelength focusing mirrors each include a first material at the media-facing surface and a liner that covers an edge of the mirror.

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