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    SYSTEMS AND METHODS FOR PROTECTING A SENSITIVE DEVICE FROM CORROSION
    122.
    发明申请
    SYSTEMS AND METHODS FOR PROTECTING A SENSITIVE DEVICE FROM CORROSION 有权
    用于保护敏感器件的腐蚀的系统和方法

    公开(公告)号：US20160232926A1

    公开(公告)日：2016-08-11

    申请号：US15130442

    申请日：2016-04-15

    Applicant: International Business Machines Corporation

    Inventor： Richard Lionel Bradshaw ,  Icko Eric Timothy Iben ,  Wayne Alan McKinley ,  Lee Curtis Randall

    IPC: G11B5/255 ,  G11B5/31 ,  G11B5/40

    CPC classification number: G11B5/255 ,  G11B5/00821 ,  G11B5/3106 ,  G11B5/3113 ,  G11B5/40 ,  G11B5/41 ,  G11B23/0071

    Abstract: A magnetic storage system according to one embodiment includes a magnetic head having a removable organic coating thereon in an amount sufficient for reducing exposure of the head to oxidation promoting materials. The system also includes an applicator in a drive in which the magnetic head resides, the applicator being configured to apply the organic coating directly to the magnetic head without contacting the magnetic head. At least one guide is configured to create a spacing between the magnetic head and the guide, wherein the spacing is sufficient to insert the applicator into the spacing.

    Abstract translation: 根据一个实施例的磁存储系统包括其上具有可移除的有机涂层的磁头，其量足以减少磁头暴露于氧化促进材料。 该系统还包括在磁头所在的驱动器中的施加器，所述施加器构造成将有机涂层直接施加到磁头而不接触磁头。 至少一个引导件构造成在磁头和引导件之间产生间隔，其中间隔足以将施加器插入间隔中。

    ASYMMETRIC MAMR HEAD WITH SELF-ALIGNED SPIN TORQUE OSCILLATOR ALONG FLARE EDGE FOR SHINGLED MAGNETIC RECORDING
    124.
    发明申请
    ASYMMETRIC MAMR HEAD WITH SELF-ALIGNED SPIN TORQUE OSCILLATOR ALONG FLARE EDGE FOR SHINGLED MAGNETIC RECORDING 有权
    具有自对准旋转扭矩振荡器的非对称马蹄形头，用于振动磁记录

    公开(公告)号：US20150332711A1

    公开(公告)日：2015-11-19

    申请号：US14278969

    申请日：2014-05-15

    Applicant: HGST Netherlands B.V.

    Inventor： Yosuke URAKAMI ,  Masato SHIIMOTO ,  Kazue KUDO ,  Hiromi SHIINA

    IPC: G11B5/35 ,  G11B5/265

    CPC classification number: G11B5/1278 ,  G11B5/23 ,  G11B5/3113 ,  G11B5/3133 ,  G11B5/3143 ,  G11B5/315 ,  G11B2005/0024

    Abstract: The present disclosure generally relates to the structure of a perpendicular magnetic write head for use in a magnetic disk drive. A shingled-microwave-assisted magnetic recording head for use in a high-areal-density hard disk drive comprises a trailing shield, a flare-shaped main pole, one or more side shields, a spin torque oscillator, and two asymmetric side gaps, where one side gap has a smaller width than the other side gap. The spin torque oscillator shares a first continuous edge with the main pole on a side adjacent the side gap having the smaller width and shares a second continuous edge adjacent a media facing surface. The angle of the spin torque oscillator and the main pole formed by the media facing surface and the narrow side gap is greater than about 90°.

    Abstract translation: 本公开总体上涉及用于磁盘驱动器的垂直磁性写入头的结构。 用于高密度硬盘驱动器的带状微波辅助磁记录头包括后屏蔽，喇叭形主极，一个或多个侧屏蔽，自旋扭矩振荡器和两个不对称侧间隙， 其中一侧间隙具有比另一侧间隙小的宽度。 旋转扭矩振荡器共享第一连续边缘，主极在邻近具有较小宽度的侧间隙的一侧上，并且与邻近介质的表面共享第二连续边缘。 旋转扭矩振荡器和由介质相对表面和窄侧间隙形成的主极的角度大于约90°。

    Perpendicular magnetic recording head laminated with AFM-FM phase change material
    126.
    发明申请
    Perpendicular magnetic recording head laminated with AFM-FM phase change material 有权
    垂直磁记录头与AFM-FM相变材料层压

    公开(公告)号：US20120087042A1

    公开(公告)日：2012-04-12

    申请号：US13199188

    申请日：2011-08-22

    Applicant: Yuchen Zhou ,  Kenichi Takano ,  Kowang Liu ,  Kunliang Zhang ,  Liejie Guan ,  Moris Dovek ,  Joe Smyth

    Inventor： Yuchen Zhou ,  Kenichi Takano ,  Kowang Liu ,  Kunliang Zhang ,  Liejie Guan ,  Moris Dovek ,  Joe Smyth

    IPC: G11B5/147 ,  G11B5/60

    CPC classification number: G11B5/3113 ,  G11B5/1278 ,  G11B5/147 ,  G11B5/3146 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49044

    Abstract: A PMR writer is disclosed that minimizes pole erasure during non-writing and maximize write field during writing through an AFM-FM phase change material that is in an antiferromagnetic (AFM) state during non-writing and switches to a ferromagnetic (FM) state by heating during writing. The main pole layer including the write pole may be comprised of a laminated structure having a plurality of “n” ferromagnetic layers and “n−1” AFM-FM phase change material layers arranged in an alternating manner. The AFM-FM phase change material is preferably a FeRh, FeRhPt, FeRhPd, or FeRhIr and may also be used as a flux gate to prevent yoke flux from leaking into the write pole tip. Heating for the AFM to FM transition is provided by write coils and/or a coil located near the AFM-FM phase change material to enable faster transition times.

    Abstract translation: 公开了一种PMR写入器，其在非写入期间最小化磁极擦除，并且在写入期间通过在非写入期间处于反铁磁（AFM）状态的AFM-FM相变材料中写入期间最大化写入场并且通过以下方式切换到铁磁（FM）状态： 书写过程中加热。 包括写极的主极层可以由具有多个“n”个铁磁层和“n-1”个AFM-FM相变材料层的交替排列的层压结构构成。 AFM-FM相变材料优选为FeRh，FeRhPt，FeRhPd或FeRhIr，并且还可以用作磁通门以防止磁轭焊剂泄漏到写极尖端。 AFM到FM转换的加热由位于AFM-FM相变材料附近的写入线圈和/或线圈提供，以实现更快的转换时间。

    Magnetic head for perpendicular recording with suppressed side writing and erasing
    127.
    发明授权
    Magnetic head for perpendicular recording with suppressed side writing and erasing 有权
    用于垂直记录的磁头，具有禁止的写入和擦除

    公开(公告)号：US07554765B2

    公开(公告)日：2009-06-30

    申请号：US10459098

    申请日：2003-06-11

    Applicant: Alexander M. Shukh ,  Nurul Amin

    Inventor： Alexander M. Shukh ,  Nurul Amin

    IPC: G11B5/147

    CPC classification number: G11B5/1278 ,  G11B5/3113 ,  G11B5/3156 ,  G11B5/3967

    Abstract: A magnetic head for perpendicular recording having reduced side writing and erasing is disclosed. The writer portion of the magnetic head includes a main pole and a return pole. The main pole includes a multilayer main pole tip and a multilayer yoke. The layers of the main pole tip and the yoke are antiferromagnetically coupled to each other with a non-magnetic metal. Antiferromagnetic coupling between the layers of the main pole tip and the yoke dramatically reduces fringing flux emanated from the sides of the main pole intending to close through an upper portion of the return pole. A biasing antiferromagnetic layer is coupled to the upper portion of the return pole to bias the return pole parallel to the air bearing surface. This prevents or reduces the effect of domain wall formation in the return pole, which results in further reduction in side writing and erasing.

    Abstract translation: 公开了一种用于垂直记录的磁头，其具有减小的侧面写入和擦除。 磁头的写入器部分包括主极和返回极。 主极包括多层主极尖和多层轭。 主极尖和轭的层用非磁性金属反铁磁耦合。 主极尖和磁轭的层之间的反铁磁耦合显着地减少了从主极的侧面发出的边缘通量，其旨在靠近返回极的上部。 偏置反铁磁层耦合到返回极的上部，以将返回极平行于空气轴承表面偏置。 这样可以防止或减少返回极中的畴壁形成的影响，从而进一步减少了侧面写入和擦除。

    Perpendicular recording head with a grooved yoke
    128.
    发明申请
    Perpendicular recording head with a grooved yoke 失效
    垂直记录头带有槽形轭

    公开(公告)号：US20080204930A1

    公开(公告)日：2008-08-28

    申请号：US11710079

    申请日：2007-02-23

    Applicant: Peng Luo ,  Shuyu Sun ,  Chaoyuan Chen

    Inventor： Peng Luo ,  Shuyu Sun ,  Chaoyuan Chen

    IPC: G11B5/187

    CPC classification number: G11B5/1278 ,  G11B5/3113 ,  G11B5/3116

    Abstract: Disclosed is a perpendicular recording head for a hard disk drive. The perpendicular recording head includes a yoke that has a plurality of grooves essentially perpendicular to a magnetic flux that flows in a vertical direction relative to the yoke. The perpendicular grooves inhibit residual magnetism in the vertical direction and enhance yoke domain stability

    Abstract translation: 公开了用于硬盘驱动器的垂直记录头。 垂直记录头包括具有基本上垂直于相对于磁轭在垂直方向上流动的磁通的多个凹槽的磁轭。 垂直槽在垂直方向上抑制剩余磁性，并增强轭结构域的稳定性

    Stitched shielded pole structure for a perpendicular magnetic recording write head
    129.
    发明授权
    Stitched shielded pole structure for a perpendicular magnetic recording write head 失效
    用于垂直磁记录写头的拼接屏蔽极结构

    公开(公告)号：US07221539B2

    公开(公告)日：2007-05-22

    申请号：US10814077

    申请日：2004-03-31

    Applicant: Kenichi Takano ,  Cherng-Chyi Han

    Inventor： Kenichi Takano ,  Cherng-Chyi Han

    IPC: G11B5/31 ,  G11B5/23

    CPC classification number: G11B5/3116 ,  G11B5/1278 ,  G11B5/3113 ,  G11B5/3143

    Abstract: A PMR write head has a stitched shield formation which results in a strong perpendicular write field with sharp vertical gradients. The shape of the stitched shield is determined by two design parameters, d=½(WSWSLE−WMPTE), and TSWS, where WSWSLE is the width of the leading edge of the stitched shield in the ABS plane, WMPTE is the width of the trailing edge of the main magnetic pole in the ABS plane and TSWS is the thickness of the stitched shield. By a proper choice of these parameters, the write field of the head is sharply limited in the cross-track direction, so that adjacent track erasures are eliminated.

    Abstract translation: PMR写头具有缝合的屏蔽结构，其形成具有尖锐垂直梯度的强垂直写入场。 缝合屏蔽的形状由两个设计参数d =½（W> SWSLE-> W> MP MP TE TE TE TE SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB SUB and and and and and and and and） W SHSLE 是ABS平面中缝合屏蔽的前缘的宽度，W> MPTE 是ABS平面中主磁极的后缘的宽度 而T SWS 是缝合屏蔽的厚度。 通过这些参数的适当选择，头部的写入场在交叉轨道方向上被大大限制，从而消除了相邻的轨迹擦除。

    Method of manufacturing a horizontal thin film write, MR read head
    130.
    发明授权
    Method of manufacturing a horizontal thin film write, MR read head 失效
    制造水平薄膜写入，MR读头的方法

    公开(公告)号：US07213326B2

    公开(公告)日：2007-05-08

    申请号：US11172735

    申请日：2005-07-01

    Applicant: Mohamad Towfik Krounbi ,  Mark E. Re

    Inventor： Mohamad Towfik Krounbi ,  Mark E. Re

    IPC: G11B5/42

    CPC classification number: G11B5/3954 ,  G11B5/2652 ,  G11B5/3113 ,  G11B5/3163 ,  G11B5/3183 ,  G11B5/3967 ,  G11B5/4886 ,  G11B19/04 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/4906

    Abstract: A horizontal combined head is provided which has both a thin film write and an MR read element located at an air bearing surface (ABS). The read element can be formed with a track width that is independent of the track width of the write element. The MR sensor or the read element is separated from one of the first and second pole pieces of the write element by an insulation layer. Accordingly, the shields for the read element remain more stable after a write operation. In one embodiment of the present invention a single stripe MR sensor is employed while in a second embodiment a dual stripe MR sensor is employed. A method of the invention includes forming the dual MR stripe in a single process step so that the dual MR stripes of the dual MR sensor are near identical for implementing near absolute common mode rejection of noise.

    Abstract translation: 提供了水平组合头，其具有位于空气轴承表面（ABS）处的薄膜写入和MR读取元件。 读取元件可以形成为与写入元件的轨迹宽度无关的轨道宽度。 MR传感器或读取元件通过绝缘层与写入元件的第一和第二极片中的一个分离。 因此，读写元件的屏蔽在写操作之后保持更稳定。 在本发明的一个实施例中，采用单条MR传感器，而在第二实施例中采用双条MR传感器。 本发明的方法包括在单个工艺步骤中形成双MR条纹，使得双MR传感器的双MR条带几乎相同以实现噪声的近绝对共模抑制。

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