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    Method for producing thin film magnetic head having magnetoresistive effect element
    5.
    发明授权
    Method for producing thin film magnetic head having magnetoresistive effect element 失效
    具有磁阻效应元件的薄膜磁头的制造方法

    公开(公告)号：US08182705B2

    公开(公告)日：2012-05-22

    申请号：US12609616

    申请日：2009-10-30

    申请人： Kosuke Tanaka ,  Daisuke Miyauchi ,  Takumi Yanagisawa

    发明人： Kosuke Tanaka ,  Daisuke Miyauchi ,  Takumi Yanagisawa

    IPC分类号： B44C1/22

    CPC分类号： G11B5/3196 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3169 ,  G11B5/3909 ,  G11B5/3967 ,  G11B5/455 ,  G11B2005/3996

    摘要： A method for producing a thin film magnetic head including a magnetoresistive effect element (MR element) that has a magnetic sensor multi-layered film with a polygonal shape such that a vertex angle faces an air bearing surface (ABS) and a tip of the vertex angle is cut when the magnetic sensor multi-layered film is viewed from an X-Y plane that is parallel to a plane of a lower shield electrode layer includes a step for stopping a lapping process by using a measurement point in which a resistance value is steeply increased while the lapping face is gradually approaching the vertex angle of polygonal shape by lapping from the ABS side. Therefore, an excellent effect in which an ultra narrow track width that exceeds limits of photolithography technology can be securely and constantly formed is obtained.

    摘要翻译： 一种具有磁阻效应元件（MR元件）的薄膜磁头的制造方法，该磁阻效应元件（MR元件）具有多角形状的磁性传感器多层膜，使得顶角面向空气轴承面（ABS）和顶点 当从平行于下屏蔽电极层的平面的XY平面观察磁传感器多层膜时，切割角度包括通过使用电阻值急剧增加的测量点来停止研磨处理的步骤 而研磨面通过从ABS侧研磨而逐渐接近多角形的顶角。 因此，可以可靠且持续地形成超光栅技术的超窄轨迹宽度的优异效果。

    THERMALLY-ASSISTED MAGNETIC HEAD
    7.
    发明申请
    THERMALLY-ASSISTED MAGNETIC HEAD 有权
    热辅助磁头

    公开(公告)号：US20120188859A1

    公开(公告)日：2012-07-26

    申请号：US13013025

    申请日：2011-01-25

    申请人： Shinji HARA ,  Tsutomu Chou ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

    发明人： Shinji HARA ,  Tsutomu Chou ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

    IPC分类号： G11B13/04 ,  G11B13/08

    CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A thermally-assisted magnetic head that includes an air bearing surface facing a recording medium and that performs magnetic recording while heating the recording medium includes: a magnetic recording element including a pole of which one edge part is positioned on the air bearing surface and that generates magnetic flux traveling toward the magnetic recording medium; a waveguide configured with a core through which light propagates and a cladding, at least one part of which extends to the air bearing surface, surrounding the periphery of the core; a plasmon generator that faces a part of the core and that extends to the air bearing surface. The plasmon generator is configured with a first part and a second part that are joined; the first part that is positioned on the air bearing surface side and that is made of a high melting point material, and the second part that is positioned away from the air bearing surface and that is made of a material with a small value ∈″, which is an imaginary component of permittivity.

    摘要翻译： 一种热辅助磁头，其包括面向记录介质的空气轴承表面并且在加热记录介质的同时进行磁记录的磁辅助磁头包括：磁记录元件，其包括：一个边缘部分位于空气轴承表面上并产生 向磁记录介质传播的磁通量; 配置有光传播的芯的波导和包围，其至少一部分延伸到空气支承表面，围绕芯的周边; 等离子体发生器，其面向芯部的一部分并且延伸到空气轴承表面。 等离子体发生器配置有连接的第一部分和第二部分; 位于空气轴承面侧并由高熔点材料制成的第一部分和远离空气轴承表面并由具有小值∈“的材料制成的第二部分， 这是介电常数的虚部。

    Heat-assisted magnetic recording head including plasmon generator
    8.
    发明授权
    Heat-assisted magnetic recording head including plasmon generator 有权
    热辅助磁记录头包括等离子体发生器

    公开(公告)号：US08125858B2

    公开(公告)日：2012-02-28

    申请号：US12728890

    申请日：2010-03-22

    申请人： Shinji Hara ,  Tsutomu Chou ,  Kosuke Tanaka ,  Eiji Komura ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Susumu Aoki ,  Takeshi Tsutsumi

    发明人： Shinji Hara ,  Tsutomu Chou ,  Kosuke Tanaka ,  Eiji Komura ,  Koji Shimazawa ,  Daisuke Miyauchi ,  Susumu Aoki ,  Takeshi Tsutsumi

    IPC分类号： G11B11/00

    CPC分类号： G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

    摘要： A plasmon generator has an outer surface including a plasmon exciting part, and has a near-field light generating part located in a medium facing surface. The plasmon exciting part faces an evanescent light generating surface of a waveguide's core with a predetermined distance therebetween. The outer surface of the plasmon generator further includes first and second inclined surfaces that are each connected to the plasmon exciting part. The first and second inclined surfaces increase in distance from each other with increasing distance from the plasmon exciting part. The plasmon generator includes a shape changing portion where the angle of inclination of each of the first and second inclined surfaces with respect to the evanescent light generating surface increases continuously with decreasing distance to the medium facing surface.

    摘要翻译： 等离子体发生器具有包括等离子体激元部分的外表面，并且具有位于介质面对表面中的近场光产生部分。 等离子激元激发部分面对波导芯的渐逝光产生表面，其间具有预定的距离。 等离子体发生器的外表面还包括各自连接到等离子体激元部分的第一和第二倾斜表面。 第一和第二倾斜表面随距离等离激子激发部分的距离增加而彼此间距离增加。 等离子体发生器包括形状改变部分，其中第一和第二倾斜表面中的每一个相对于ev逝光产生表面的倾斜角度随着到介质面向表面的距离的减小而连续增加。

    Heat-assisted magnetic recording head with laser diode
    9.
    发明申请
    Heat-assisted magnetic recording head with laser diode 有权
    带激光二极管的热辅助磁记录头

    公开(公告)号：US20110026156A1

    公开(公告)日：2011-02-03

    申请号：US12461157

    申请日：2009-08-03

    申请人： Koji Shimazawa ,  Yasuhiro Ito ,  Yuji Kakinuma ,  Daisuke Miyauchi ,  Kosuke Tanaka

    发明人： Koji Shimazawa ,  Yasuhiro Ito ,  Yuji Kakinuma ,  Daisuke Miyauchi ,  Kosuke Tanaka

    IPC分类号： G11B5/02

    CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

    摘要： A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode that emits polarized light of TM mode. The laser diode is arranged so that its bottom surface faces the top surface of the slider. An electrode of the laser diode closer to the active layer is bonded to a conductive layer of the slider, whereby the laser diode is fixed to the slider. As viewed from above the laser diode, the bottom surface of the electrode of the laser diode includes a first area that a light propagation path of the laser diode overlies, and a second area other than the first area. The top surface of the conductive layer is in contact not with the first area but with the second area of the bottom surface of the electrode.

    摘要翻译： 热辅助磁记录头包括滑块和发射TM模的偏振光的边缘发射激光二极管。 激光二极管被布置成使得其底表面面向滑块的顶表面。 更靠近有源层的激光二极管的电极被接合到滑块的导电层，由此激光二极管被固定到滑块。 从激光二极管的上方观察，激光二极管的电极的底面包括激光二极管的光传播路径重叠的第一区域和第一区域以外的第二区域。 导电层的顶表面不与第一区域接触，而是与电极底表面的第二区域接触。

    SURFACE PLASMON ANTENNA WITH PROPAGATION EDGE AND NEAR-FIELD LIGHT GENERATING ELEMENT
    10.
    发明申请
    SURFACE PLASMON ANTENNA WITH PROPAGATION EDGE AND NEAR-FIELD LIGHT GENERATING ELEMENT 有权
    具有传播边缘和近场光生成元件的表面等离子体天线

    公开(公告)号：US20100103553A1

    公开(公告)日：2010-04-29

    申请号：US12260639

    申请日：2008-10-29

    申请人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

    发明人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

    IPC分类号： G11B5/02 ,  G21G4/00

    CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/4866 ,  G11B2005/001 ,  G11B2005/0021

    摘要： Provided is a surface plasmon antenna that can be set so that the emitting position on the end surface of the plasmon antenna where near-field light is emitted is located sufficiently close to the end of a magnetic pole. The surface plasmon antenna comprises an edge having a portion for coupling with a light in a surface plasmon mode. The edge is provided for propagating surface plasmon excited by the light and extends from the portion to a near-field light generating end surface that emits near-field light. The edge for propagating surface plasmon is a very narrow propagation region. Therefore, the near-field light generating end surface, which appears as a polished surface processed through polishing in the manufacturing of the plasmon antenna, can be made a shape with a very small size, and further can be set so that surface plasmon propagates to reach the end surface reliably.

    摘要翻译： 提供了一种表面等离子体激元天线，其可以被设置为使得发射近场光的等离子体激元天线的端面上的发射位置足够靠近磁极的端部。 表面等离子体激元天线包括具有用于与表面等离子体激元模式的光耦合的部分的边缘。 该边缘用于传播由光激发的表面等离子体激元，并从该部分延伸到发射近场光的近场光产生端面。 传播表面等离子体激元的边缘是非常窄的传播区域。 因此，通过在等离子体激元天线的制造中通过研磨处理的抛光面的近场光产生端面可以形成为非常小的形状，并且还可以将表面等离子体激元传播到 可靠地到达端面。