Optically opaque overlay for a waveguide of a heat-assisted magnetic recording slider

    公开(公告)号:US10127937B1

    公开(公告)日:2018-11-13

    申请号:US15433235

    申请日:2017-02-15

    Abstract: A slider having an air bearing surface is configured for heat-assisted magnetic recording (HAMR). The slider comprises a write pole, a near-field transducer (NFT) proximate the write pole, a return pole magnetically coupled to the write pole, and an optical waveguide configured to receive light from a light source and couple the light to the NFT. The optical waveguide comprises first and second opposing major surfaces and opposing first and second edges connected to the first and second major surfaces. An optically opaque overlay is disposed on one or both of the first and second major surfaces of the optical waveguide. The optically opaque overlay can be light reflective or light absorbing.

    Solid immersion mirror with fill material between inner and outer sidewalls
    35.
    发明授权
    Solid immersion mirror with fill material between inner and outer sidewalls 有权
    固体浸入式反射镜,在内侧壁和外侧壁之间具有填充材料

    公开(公告)号:US09070385B2

    公开(公告)日:2015-06-30

    申请号:US14551948

    申请日:2014-11-24

    Abstract: An apparatus includes a solid immersion mirror with opposing, reflective, inner sidewalls having inner surfaces facing a focal region and outer surfaces opposite the inner surfaces. The solid immersion mirror also include opposing outer sidewalls spaced apart from and facing the outer surfaces of the inner sidewalls, and a fill material between the inner sidewalls and outer sidewalls. The apparatus also includes a near-field transducer located in the focal region proximate a media-facing surface.

    Abstract translation: 一种装置包括具有相对的,反射的内侧壁的固体浸没镜,其具有面向焦点区域的内表面和与内表面相对的外表面。 固体浸没镜还包括与内侧壁间隔开并面向内侧壁的外表面的相对的外侧壁,以及在内侧壁和外侧壁之间的填充材料。 该装置还包括位于邻近介质面向表面的聚焦区域中的近场换能器。

    APPARATUS WITH A PLURALITY OF HEAT SINKS
    36.
    发明申请
    APPARATUS WITH A PLURALITY OF HEAT SINKS 有权
    具有多种热量的装置

    公开(公告)号:US20150043316A1

    公开(公告)日:2015-02-12

    申请号:US13961644

    申请日:2013-08-07

    CPC classification number: G11B13/08 G11B5/314 G11B5/6088 G11B2005/0021

    Abstract: An apparatus comprises a write transducer comprising a write pole having a tip portion proximate a media-facing surface and a return pole spaced apart from the write pole in a downtrack direction. The apparatus further includes first and second heat sink portions. The first heat sink portion surrounds a first side of the tip portion that faces the return pole and extends outwards from the tip portion in a cross-track direction. The second heat sink portion comprises a first surface proximate the first heat sink portion and a second surface proximate the return pole and extends outwards in the cross-track direction further than the first heat sink portion.

    Abstract translation: 一种装置包括一个写入传感器,该写入传感器包括一个写入极,该写入极具有靠近面向介质的表面的尖端部分和在沿着横向方向与该写入极间隔开的返回极。 该装置还包括第一和第二散热部分。 第一散热器部分包围尖端部分的面向返回极的第一侧,并且在横向方向上从尖端部分向外延伸。 第二散热部分包括靠近第一散热部分的第一表面和邻近返回极的第二表面,并且在横向方向上比第一散热部分更向外延伸。

    Multi-portion heat sink for use with write pole and near-field transducer
    37.
    发明授权
    Multi-portion heat sink for use with write pole and near-field transducer 有权
    用于写磁极和近场传感器的多部分散热器

    公开(公告)号:US08923100B1

    公开(公告)日:2014-12-30

    申请号:US14024329

    申请日:2013-09-11

    CPC classification number: G11B5/6088 G11B5/314 G11B2005/0021

    Abstract: An apparatus (e.g., a heat assisted magnetic recording write heat) includes a magnetic write pole having a tip portion proximate a media-facing surface. A near-field transducer is proximate the tip portion of the magnetic write pole. A first heat sink portion is provided along a first side of the tip portion that faces away from the near field transducer. The first heat sink portion includes a highly reflective, thermally conductive metal and is spaced away from the media facing surface. A second heat sink portion is provided along the first side of the tip portion between the media facing surface and the first heat sink portion. The second heat sink portion includes a relatively hard material.

    Abstract translation: 一种装置(例如,热辅助磁记录写入热)包括具有靠近面向介质表面的尖端部分的磁性写入极。 近场换能器靠近磁写柱的尖端部分。 第一散热部分沿尖端部分的远离近场传感器的第一侧设置。 第一散热器部分包括高反射性导热金属,并且与介质相对表面间隔开。 第二散热部分沿着介质对向表面和第一散热部分之间的尖端部分的第一侧设置。 第二散热器部分包括相对硬的材料。

    SOLID IMMERSION MIRROR WITH FILL MATERIAL BETWEEN INNER AND OUTER SIDEWALLS
    38.
    发明申请
    SOLID IMMERSION MIRROR WITH FILL MATERIAL BETWEEN INNER AND OUTER SIDEWALLS 有权
    内部和外部之间填充材料的实心镜

    公开(公告)号:US20140355402A1

    公开(公告)日:2014-12-04

    申请号:US13910032

    申请日:2013-06-04

    Abstract: An apparatus includes a solid immersion mirror with opposing, reflective, inner sidewalls having inner surfaces facing a focal region and outer surfaces opposite the inner surfaces. The solid immersion mirror also include opposing outer sidewalls spaced apart from and facing the outer surfaces of the inner sidewalls, and a fill material between the inner sidewalls and outer sidewalls. The apparatus also includes a near-field transducer located in the focal region proximate a media-facing surface.

    Abstract translation: 一种装置包括具有相对的,反射的内侧壁的固体浸没镜,其具有面向焦点区域的内表面和与内表面相对的外表面。 固体浸没镜还包括与内侧壁间隔开并面向内侧壁的外表面的相对的外侧壁,以及在内侧壁和外侧壁之间的填充材料。 该装置还包括位于邻近介质面向表面的聚焦区域中的近场换能器。

    Light mitigation layer between write pole and waveguide
    39.
    发明授权
    Light mitigation layer between write pole and waveguide 有权
    写极和波导之间的光缓解层

    公开(公告)号:US08873352B1

    公开(公告)日:2014-10-28

    申请号:US14206683

    申请日:2014-03-12

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

    Abstract: An apparatus has a near-field transducer located proximate a media-facing surface of a slider magnetic recording heat. A waveguide is configured to couple light to the near-field transducer and includes a top cladding layer facing the near-field transducer, a bottom cladding layer, and a core layer between the top and bottom cladding layers. The apparatus includes a write pole with a flat portion substantially parallel to the core layer and a sloped portion extending from the flat portion of the write pole towards the media-facing surface at an angle to the core layer and to the media-facing surface. A light mitigation layer is located between the top cladding layer and the write pole.

    Abstract translation: 一种装置具有靠近滑块磁记录热的面向介质表面的近场换能器。 波导被配置为将光耦合到近场换能器并且包括面向近场换能器的顶部覆层,底部包层以及在顶部和底部包层之间的芯层。 该装置包括具有基本上平行于芯层的平坦部分的写入极和从写入极的平坦部分朝着与介质相对的表面以与芯层成一定角度延伸到介质面向表面的倾斜部分。 光缓解层位于顶包层和写柱之间。

    NEAR-FIELD TRANSDUCER WITH FLARE PEG
    40.
    发明申请
    NEAR-FIELD TRANSDUCER WITH FLARE PEG 有权
    具有FLARE PEG的近场传感器

    公开(公告)号:US20140254336A1

    公开(公告)日:2014-09-11

    申请号:US13789272

    申请日:2013-03-07

    CPC classification number: G02B6/1226 G11B5/314 G11B5/6088 G11B2005/0021

    Abstract: Disclosed are plasmonic near-field transducers that are useful in heat-assisted magnetic recording. The disclosed plasmonic near-field transducers have an enlarged region and a flared region. In some embodiments the disclosed plasmonic near-field transducer can also include a peg region. The flared region can act as a heat sink and can lower the thermal resistance of the peg region of the near-field transducer, thus reducing its temperature. Also disclosed are methods that include delivering light to a magnetic transducer region via a waveguide, receiving the light at a plasmonic near-field transducer having an output end and disposed in proximity to the magnetic transducer region, and delivering a surface plasmon-enhanced near-field radiation pattern proximate the output end of the plasmonic transducer in response to receiving the light,

    Abstract translation: 公开了可用于热辅助磁记录的等离子体近场换能器。 所公开的等离子体近场换能器具有扩大的区域和扩口区域。 在一些实施例中,所公开的等离子体激元近场换能器还可以包括钉住区域。 扩口区域可以作为散热器,并且可以降低近场换能器的钉区域的热阻,从而降低其温度。 还公开了一种方法,其包括经由波导将光传送到磁换能器区域,在具有输出端并设置在靠近磁换能器区域的等离子体近场换能器处接收光,以及输送表面等离子体增强的近场传感器, 响应于接收光而等离子体激元传感器的输出端附近的场辐射图,

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