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    WRITE HEAD WITH MODIFIED SIDE SHIELDS
    31.
    发明申请
    WRITE HEAD WITH MODIFIED SIDE SHIELDS 审中-公开
    具有修改的边框的写头

    公开(公告)号：US20150170681A1

    公开(公告)日：2015-06-18

    申请号：US14632062

    申请日：2015-02-26

    Applicant: SEAGATE TECHNOLOGY LLC

    Inventor： Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  James Gary Wessel ,  Dehua Han ,  Huaqing Yin ,  Jianhua Xue

    IPC: G11B5/11 ,  G11B5/60

    CPC classification number: G11B5/11 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/6082

    Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.

    Abstract translation: 写头，写头具有空气轴承表面，写头包括磁写极，其中在空气轴承表面处，写极具有后表面，与后表面相对的前表面，以及第一和 第二面 靠近磁性写入磁极的后表面的尾部屏蔽; 靠近磁写入极的第一和第二表面的第一和第二间隙; 靠近第一和第二间隙的第一和第二侧面屏蔽件，第一和第二侧面屏蔽件中的每一个具有尾部屏蔽表面; 以及第一和第二反铁磁耦合层，其位于第一和第二侧面屏蔽的尾部屏蔽表面与后屏蔽之间。

    Write head with floating side shields and enhanced magnetic potential
    32.
    发明授权
    Write head with floating side shields and enhanced magnetic potential 有权
    使用浮动侧屏幕写入磁头并增强磁势

    公开(公告)号：US08995086B2

    公开(公告)日：2015-03-31

    申请号：US13733300

    申请日：2013-01-03

    Applicant: Seagate Technology LLC

    Inventor： Mourad Benakli ,  Michael Mallary

    IPC: G11B5/11 ,  G11B5/31 ,  G11B5/127

    CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

    Abstract: A write head has a pole tip, a write yoke connected to the pole tip, a write return yoke, a write shield, and one or more side shields disposed in close proximity to the pole tip. The write return yoke connects to the write yoke on one end and the write shield on a different end. The one or more side shields are separated from the pole tip and write shields by a non-magnetic material and therefore are “floating” and not directly coupled to the write shield or pole tip.

    Abstract translation: 写头具有极尖，与磁极尖连接的写磁轭，写回位磁轭，写屏蔽以及设置在极尖附近的一个或多个侧屏蔽。 写入返回磁轭在一端连接到写磁轭，而在另一端连接写屏蔽。 一个或多个侧面屏蔽件与极尖分离，并由非磁性材料写入屏蔽，因此“浮动”并且不直接耦合到写入屏蔽或极尖。

    Write head with modified side shields
    33.
    发明授权
    Write head with modified side shields 有权
    用修改后的侧屏头写头

    公开(公告)号：US08970992B2

    公开(公告)日：2015-03-03

    申请号：US13890387

    申请日：2013-05-09

    Applicant: Seagate Technology LLC

    Inventor： Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  James Gary Wessel ,  Dehua Han ,  Huaqing Yin ,  Jianhua Xue

    IPC: G11B5/127 ,  G11B5/11 ,  G11B5/31

    CPC classification number: G11B5/11 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/6082

    Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.

    Abstract translation: 写头，写头具有空气轴承表面，写头包括磁写极，其中在空气轴承表面处，写极具有后表面，与后表面相对的前表面，以及第一和 第二面 靠近磁性写入磁极的后表面的尾部屏蔽; 靠近磁写入极的第一和第二表面的第一和第二间隙; 靠近第一和第二间隙的第一和第二侧面屏蔽件，第一和第二侧面屏蔽件中的每一个具有尾部屏蔽表面; 以及第一和第二反铁磁耦合层，其位于第一和第二侧面屏蔽的尾部屏蔽表面与后屏蔽之间。

    Write pulse with adjustable slew rate
    34.
    发明授权
    Write pulse with adjustable slew rate 有权
    以可调压摆率写入脉冲

    公开(公告)号：US08947820B1

    公开(公告)日：2015-02-03

    申请号：US14266569

    申请日：2014-04-30

    Applicant: Seagate Technology LLC

    Inventor： Kirill Rivkin ,  Yanzhang Liu ,  Mourad Benakli ,  Huaqing Yin

    IPC: G11B15/12

    CPC classification number: G11B5/02 ,  G11B2005/001

    Abstract: The implementations disclosed herein provide for a storage device including a preamplifier that generates a write current pulse having a region of reduced slew rate that temporally correlates with a time when a magnetization of a write pole tip switches polarity.

    Abstract translation: 本文公开的实现方案提供了一种存储装置，其包括前置放大器，该前置放大器产生写入电流脉冲，该写入电流脉冲具有与写入磁极尖端的磁化切换极性时的时间相关的压摆率降低的区域。

    Features for write fringing reduction
    35.
    发明授权
    Features for write fringing reduction 有权
    写入边缘缩小功能

    公开(公告)号：US08830631B2

    公开(公告)日：2014-09-09

    申请号：US13914990

    申请日：2013-06-11

    Applicant: Seagate Technology LLC

    Inventor： Mourad Benakli ,  Michael Mallary

    IPC: G11B5/667 ,  G11B5/82 ,  G11B5/855

    CPC classification number: G11B5/667 ,  G11B5/82 ,  G11B5/855

    Abstract: A recording media design having discrete track recording structure where the trenches between tracks are filled with a soft magnetic material is provided. The soft magnetic material provides a low magnetic impedance path to the soft underlayer such that fringe fields from the write head are conducted to the soft underlayer without having a negative effect such as adjacent track erasure. A method of manufacturing the media includes a nano-imprint step and ion milling out the data layer to create the trenches. A B2O3 material allows the data layer to be ion milled out without redeposition bridging the B2O3 layer thus preventing lift off of the mask. The trenches are then filled by ion deposition with the layers of ferromagnetic material separated by an anti-ferromagnetic coupling that causes the flux to be conducted to the soft underlayer and remnant flux to rotate within the island and not into adjacent tracks.

    Abstract translation: 提供了具有离散轨道记录结构的记录介质设计，其中轨道之间的沟槽被软磁材料填充。 软磁材料提供到软底层的低磁阻抗路径，使得来自写头的边缘场被传导到软底层，而不会产生诸如相邻轨道擦除的负面影响。 制造介质的方法包括纳米压印步骤和离子铣出数据层以产生沟槽。 B2O3材料允许将数据层离子研磨而不再沉积B2O3层，从而防止掩模剥离。 然后通过离子沉积来填充沟槽，铁磁材料层通过反铁磁耦合分开，这导致通量被引导到软底层，剩余通量在岛内旋转而不进入相邻的轨道。

    Magnetic write transducer with flat pole section
    40.
    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.

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