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    Heat-assisted magnetic recording head with a heat sink having a liner
    2.
    发明授权
    Heat-assisted magnetic recording head with a heat sink having a liner 有权

    公开(公告)号：US11657844B1

    公开(公告)日：2023-05-23

    申请号：US17654878

    申请日：2022-03-15

    Applicant: Seagate Technology LLC

    Inventor： Tae-Woo Lee ,  Jiaoming Qiu

    IPC: G11B5/31 ,  G11B5/48 ,  G11B5/73 ,  G11B5/00

    CPC classification number: G11B5/7375 ,  G11B5/314 ,  G11B5/4866 ,  G11B2005/0021

    Abstract: A heat-assisted magnetic recording head includes a near-field transducer and a heat sink. The near-field transducer includes a middle disk and a near-field emitter. The near-field emitter includes a peg and an anchor disk. The peg is configured to produce a hot spot on a proximal magnetic disk. The peg is disposed proximal to a media-facing surface of the heat-assisted magnetic recording head. The anchor disk is disposed behind the peg relative to the media-facing surface. The heat sink includes a core and a liner. The core includes a primary metal, and the liner includes a primary metal. The liner is coupled to the core and is disposed along an outer surface of the core. The middle disk is disposed between and coupled to the liner and the anchor disk. The primary metal of the liner comprises at least one of iridium, rhodium, tantalum, tungsten, or ruthenium.

    Low-recess write pole coil near shield at media-facing surface
    5.
    发明授权
    Low-recess write pole coil near shield at media-facing surface 有权
    低介质写磁极线圈靠近屏蔽在面向介质的表面

    公开(公告)号：US08873201B2

    公开(公告)日：2014-10-28

    申请号：US13961672

    申请日：2013-08-07

    Applicant: Seagate Technology LLC

    Inventor： Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  Zhe Shen ,  Jiaoming Qiu ,  Huaqing Yin

    IPC: G11B5/11 ,  G11B5/012 ,  G11B5/31 ,  G11B5/09

    CPC classification number: G11B5/11 ,  G11B5/012 ,  G11B5/09 ,  G11B5/312 ,  G11B5/315

    Abstract: An apparatus includes a write pole magnetically coupled to write coils that generate a first magnetic field during a switching event. The apparatus includes a shield at a media-facing surface and proximate the write pole. A conductive element is disposed proximate the shield and configured to generate a second magnetic field opposite to the first magnetic field during the switching event. A selected one of the write coils is located adjacent the shield separate from others of the write coils.

    Abstract translation: 一种装置包括磁极耦合到写入线圈的写入磁极，其在切换事件期间产生第一磁场。 该装置包括位于面向媒体的表面并靠近写入极的屏蔽。 导电元件靠近屏蔽设置，并被配置为在切换事件期间产生与第一磁场相反的第二磁场。 写入线圈中的一个选择的一个写入线圈与写入线圈的其他部分分开设置在屏蔽件附近。

    NON-MAGNETIC SEED LAYER METHOD AND APPARATUS
    6.
    发明申请
    NON-MAGNETIC SEED LAYER METHOD AND APPARATUS 有权
    非磁性种子层方法和装置

    公开(公告)号：US20140272471A1

    公开(公告)日：2014-09-18

    申请号：US13797165

    申请日：2013-03-12

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Wei Tian ,  Venkateswara Rao Inturi ,  Doug Lin ,  Huaqing Yin ,  Jiaoming Qiu

    IPC: G11B5/33

    CPC classification number: G11B5/235 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/23 ,  G11B5/232 ,  G11B5/3116 ,  G11B5/3143 ,  G11B5/3163 ,  G11B5/332 ,  G11B5/6082 ,  Y10T428/115 ,  Y10T428/1193

    Abstract: In accordance with one embodiment, an apparatus can be configured that includes a main pole layer of magnetic material; a second layer of magnetic material; a first gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; a second gap layer of non-magnetic material disposed between the main pole layer and the second layer of magnetic material; and wherein the second gap layer of non-magnetic material is disposed directly adjacent to the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. In accordance with one embodiment, this allows the gap to serve as a non-magnetic seed for the second layer of magnetic material. In accordance with one embodiment, a method of manufacturing such a device may also be utilized.

    Abstract translation: 根据一个实施例，可以构造一种装置，其包括磁性材料的主极层; 第二层磁性材料; 设置在所述主极层和所述第二磁性材料层之间的非磁性材料的第一间隙层; 设置在主极层和第二磁性材料层之间的非磁性材料的第二间隙层; 并且其中所述非磁性材料的所述第二间隙层直接邻近所述第二磁性材料层设置。 根据一个实施例，这允许间隙用作第二层磁性材料的非磁性种子。 根据一个实施例，这允许间隙用作第二层磁性材料的非磁性种子。 根据一个实施例，还可以使用制造这种装置的方法。

    WRITE HEAD WITH COIL STRUCTURE ALIGNED WITH YOKE
    9.
    发明申请
    WRITE HEAD WITH COIL STRUCTURE ALIGNED WITH YOKE 有权
    带有线圈结构的写入头与YOKE对齐

    公开(公告)号：US20160064018A1

    公开(公告)日：2016-03-03

    申请号：US14798998

    申请日：2015-07-14

    Applicant: Seagate Technology LLC

    Inventor： Jianhua Xue ,  Jiaoming Qiu ,  Kirill Rivkin ,  Huaqing Yin ,  John Wolf ,  Yonghua Chen

    IPC: G11B5/17 ,  G11B5/60

    CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/313

    Abstract: A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.

    Abstract translation: 一种写头，其主极具有靠近空气轴承表面（ABS）的极尖，所述主极具有前侧和后侧。 写头还包括具有从ABS凹陷的轭头的磁轭和缠绕在主极和磁轭上的螺旋线圈。 螺旋线圈具有第一匝，其前缘至少基本上与轭尖对齐。

    Write pole paddle
    10.
    发明授权
    Write pole paddle 有权
    写极板桨

    公开(公告)号：US09171557B1

    公开(公告)日：2015-10-27

    申请号：US14535481

    申请日：2014-11-07

    Applicant: Seagate Technology LLC

    Inventor： Jiaoming Qiu ,  Lei Lu ,  Xuelian Xu

    IPC: G11B5/147

    CPC classification number: G11B5/6082 ,  G11B5/1272 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/3123

    Abstract: A write head having a write pole with a tip portion defining a pole tip and a paddle portion extending from the tip portion away from the pole tip, the paddle portion defining a back edge. The write head also has a coil structure having at least two active turns crossing the paddle portion, wherein a back of the coil structure is no more than 1 micrometer past the back edge of the write pole. In some implementations, a length from the pole tip to the back edge is no more than 4.5 micrometers.

    Abstract translation: 一种具有写入极的写入头，其具有限定极尖的尖端部分和从所述尖端部分远离所述极尖端延伸的桨状部分，所述桨形部分限定了后缘。 写头还具有线圈结构，该线圈结构具有至少两个与该桨叶部分相交的活动匝，其中线圈结构的背面经过写入极的后边缘不超过1微米。 在一些实施方案中，从极尖到后缘的长度不超过4.5微米。

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