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    Magnetic write transducer with flat pole section
    2.
    发明授权
    Magnetic write transducer with flat pole section 有权

    公开(公告)号：US10204644B1

    公开(公告)日：2019-02-12

    申请号：US15601032

    申请日：2017-05-22

    Applicant: Seagate Technology LLC

    Inventor： Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  Huaqing Yin ,  Hua Zhou ,  Tae-Woo Lee

    IPC: G11B5/127 ,  G11B5/31 ,  G11B5/187 ,  G11B5/39

    Abstract: A recording head includes a magnetic write transducer proximate a near-field transducer. The magnetic write transduce includes a yoke extending in a direction normal to a media-facing surface and a having an edge facing and recessed from the media-facing surface. A write pole extends beyond the first end of the yoke towards the media-facing surface and overlaps a first surface of the yoke that faces the near-field transducer. The write pole has a stepped edge facing away from the media-facing surface. Two or more coil turns are stacked relative to one another in a down-track direction. The two or more coils face a second surface of the yoke that is opposed to the first surface.

    MODE CONVERSION VIA TAPERED WAVEGUIDE
    4.
    发明申请
    MODE CONVERSION VIA TAPERED WAVEGUIDE 有权
    模式转换通过波形波形

    公开(公告)号：US20160247525A1

    公开(公告)日：2016-08-25

    申请号：US14626206

    申请日：2015-02-19

    Applicant: Seagate Technology LLC

    Inventor： Tae-Woo Lee ,  Yi-Kuei Ryan Wu ,  Pierre Asselin ,  Werner Scholz

    IPC: G11B5/48

    CPC classification number: G11B5/6088 ,  G02B6/1228 ,  G02B6/136 ,  G11B5/314 ,  G11B2005/0021

    Abstract: An apparatus includes a write head comprising a near-field transducer at a media-facing surface of the write head and a waveguide extending along a light-propagation direction. The waveguide is configured to receive light emitted from a light source at a fundamental transverse electric mode. The waveguide is configured to deliver the light to the near-field transducer at a transverse magnetic mode which directs surface plasmons to a recording medium in response thereto. The waveguide comprises a core with first and second tapers separated by a straight portion of constant cross sectional width. The first and second tapers successively decrease a cross-sectional width of the core as it nears the near-field transducer. The waveguide includes an end portion between the second taper and the near field transducer. The end portion comprises a top cladding layer, aside cladding layer, and a bottom cladding layer on the side cladding layer.

    Abstract translation: 一种装置包括写头，该写头包括在写头的面向介质表面的近场换能器和沿着光传播方向延伸的波导。 波导被配置为在基本横向电模式下接收从光源发射的光。 波导被配置为以横向磁性模式将光传送到近场换能器，该横向磁模式将表面等离子体激元响应于该等离子体质子传导到记录介质。 波导包括具有由恒定横截面宽度的直线部分分开的第一和第二锥形的芯。 当靠近近场换能器时，第一和第二锥度依次降低了芯的横截面宽度。 波导包括在第二锥形和近场换能器之间的端部。 所述端部包括在所述侧包层上的顶部包覆层，旁边包层和下部包层。

    Near-field transducer with rounded or obtuse corners
    5.
    发明授权
    Near-field transducer with rounded or obtuse corners 有权
    具有圆角或钝角的近场传感器

    公开(公告)号：US09129626B2

    公开(公告)日：2015-09-08

    申请号：US14061934

    申请日：2013-10-24

    Applicant: Seagate Technology LLC

    Inventor： Michael Christopher Kautzky ,  James Gary Wessel ,  Mark Ostrowski ,  Tae-Woo Lee

    IPC: G11B11/00 ,  G11B5/48 ,  G11B13/08 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00 ,  G11B7/12

    CPC classification number: G11B5/4866 ,  G11B5/314 ,  G11B5/6088 ,  G11B7/124 ,  G11B7/126 ,  G11B13/08 ,  G11B2005/0021

    Abstract: Embodiments are directed to an apparatus having an air-bearing surface that is configured to interact with magnetic medium. The apparatus includes a waveguide and a plasmonic near-field transducer positioned at or near the air-bearing surface. The plasmonic near-field transducer is operatively coupled to the waveguide. The plasmonic near-field transducer includes an enlarged region and a peg region. The peg region extends from the enlarged region towards the air-bearing surface. The peg region has at least a portion of a periphery of its cross-sectional shape include curvature or at least one substantially obtuse angle.

    Abstract translation: 实施例涉及具有被配置为与磁介质相互作用的空气轴承表面的装置。 该装置包括位于空气承载表面处或附近的波导和等离子体近场换能器。 等离子体近场换能器可操作地耦合到波导。 等离子体激元近场换能器包括放大区域和钉区域。 销钉区域从扩大区域向空气轴承表面延伸。 钉区域具有其横截面形状的至少一部分周边包括曲率或至少一个基本钝角。

    DEVICES INCLUDING A DIFFUSION BARRIER LAYER
    9.
    发明申请
    DEVICES INCLUDING A DIFFUSION BARRIER LAYER 审中-公开

    公开(公告)号：US20190164570A1

    公开(公告)日：2019-05-30

    申请号：US16260910

    申请日：2019-01-29

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Sarbeswar Sahoo ,  Martin Blaber ,  Hui Brickner ,  Tong Zhao ,  Yuhang Cheng ,  John Duda ,  Tae-Woo Lee

    IPC: G11B5/31 ,  G11B5/60

    Abstract: Devices having an air bearing surface (ABS), the devices including a write pole; a near field transducer (NFT) that includes a peg and a disc, wherein the peg is at the ABS of the device; a heat sink positioned adjacent the disc of the NFT; a dielectric gap positioned adjacent the peg of the NFT at the ABS of the device; and a conformal diffusion barrier layer positioned between the write pole and the dielectric gap, the disc, and the heat sink, wherein the conformal diffusion barrier layer forms at least one angle that is not greater than 135°.

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