公开(公告)号：US20120014230A1

公开(公告)日：2012-01-19

申请号：US12837725

申请日：2010-07-16

申请人： Shinji HARA ,  Tsutomu Chou ,  Tetsuya Roppongi ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Shinji HARA ,  Tsutomu Chou ,  Tetsuya Roppongi ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y25/00 ,  G01R33/093 ,  G02B2006/121 ,  G11B5/6088 ,  G11B2005/0021

摘要： A magnetic recording element that faces a recording medium and that executes a magnetic recording while the recording medium is heated, the element including a waveguide that is configured with a core and a cladding, the core, through which laser light propagates, including an enlarged part, which is enlarged at an air bearing surface facing the recording medium; and the cladding surrounding a periphery of the core.

摘要翻译： 一种磁记录元件，其面向记录介质并且在记录介质被加热的同时执行磁记录，所述元件包括配置有芯和包层的波导，激光通过该芯体传播，其包括放大部分 ，其在面向记录介质的空气轴承表面处被扩大; 并且包围围绕芯的周边的包层。

公开(公告)号：US08374059B2

公开(公告)日：2013-02-12

申请号：US13045992

申请日：2011-03-11

申请人： Takahiko Izawa ,  Tsutomu Chuo ,  Eiji Komura ,  Kosuke Tanaka

发明人： Takahiko Izawa ,  Tsutomu Chuo ,  Eiji Komura ,  Kosuke Tanaka

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G02B6/10 ,  G11B5/3106 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A heat-assisted magnetic write head includes a magnetic pole having an end surface exposed at an air bearing surface, a waveguide extending toward the air bearing surface to propagate light, a first pair of clads made of a first dielectric material having a refractive index lower than that of the waveguide, and sandwiching the waveguide in a track width direction, and a second pair of clads made of a second dielectric material having a refractive index lower than that of the first dielectric material, and sandwiching the waveguide in a thickness direction orthogonal to the track width direction. Further, the heat-assisted magnetic write head may include, between the magnetic pole and the waveguide, a plasmon generator generating near-field light from the air bearing surface, based on light propagating through the waveguide.

摘要翻译： 一种热辅助磁性写头包括：具有在空气轴承表面露出的端面的磁极;向空气轴承表面延伸以传播光的波导;由折射率较低的第一介电材料制成的第一对包层 和波导夹着波导宽度方向的第二对夹层，以及折射率低于第一介电体的折射率的第二介电材料构成的第二对夹层，并将波导夹在厚度方向正交 到轨道宽度方向。 此外，热辅助磁写头可以包括在磁极和波导之间的等离子体发生器，其基于通过波导传播的光产生从空气轴承表面产生近场光。

公开(公告)号：US07813086B2

公开(公告)日：2010-10-12

申请号：US11802220

申请日：2007-05-21

申请人： Kosuke Tanaka ,  Kazuki Sato ,  Eiji Komura

发明人： Kosuke Tanaka ,  Kazuki Sato ,  Eiji Komura

IPC分类号： G11B5/39

CPC分类号： G11B5/3967 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3912 ,  G11B5/3932 ,  H01L43/08 ,  H01L43/12

摘要： Producing a thin film magnetic head includes forming a pair of openings in a predetermined region of a TMR layer formed on a lower magnetic shield layer; forming a pair of bias-applying layers in the pair of openings so that an upper surface thereof is located above an upper surface of the TMR layer; laminating a metal layer that covers the upper surface of a portion located between the pair of bias-applying layers in the TMR layer and the upper surface of the pair of bias-applying layers; forming a resist layer across the upper surface of a portion located above the pair of bias-applying layers in the metal layer and the upper surface of a portion located above the TMR layer in the metal layer; and etching a part of the TMR layer and a part of the pair of bias-applying layers with the resist layer being as a mask.

摘要翻译： 制造薄膜磁头包括在形成在下磁屏蔽层上的TMR层的预定区域中形成一对开口; 在所述一对开口中形成一对偏压施加层，使得其上表面位于所述TMR层的上表面之上; 层叠覆盖位于所述TMR层中的所述一对偏置施加层之间的部分的上表面的金属层和所述一对偏置施加层的上表面; 在位于所述金属层中的所述一对偏置施加层上方的部分的上表面和位于所述金属层中的所述TMR层上方的部分的上表面上形成抗蚀剂层; 并且将抗蚀剂层作为掩模蚀刻TMR层的一部分和一对偏置施加层的一部分。

公开(公告)号：US20080291583A1

公开(公告)日：2008-11-27

申请号：US11802220

申请日：2007-05-21

申请人： Kosuke Tanaka ,  Kazuki Sato ,  Eiji Komura

发明人： Kosuke Tanaka ,  Kazuki Sato ,  Eiji Komura

IPC分类号： G11B5/11

CPC分类号： G11B5/3967 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3912 ,  G11B5/3932 ,  H01L43/08 ,  H01L43/12

摘要： A method of producing a thin film magnetic head includes the steps of: forming a pair of openings in a predetermined region of a TMR layer formed on a lower magnetic shield layer; forming a pair of bias-applying layers in the pair of Openings so that an upper surface thereof may be located above an upper surface of the TMR layer; laminating a metal layer that covers the upper surface of a portion located between the pair of bias-applying layers in the TMR layer and the upper surface of the pair of bias-applying layers; forming a resist layer across the upper surface of a portion located above the pair of bias-applying layers in the metal layer and the upper surface of a portion located above the TMR layer in the metal layer; and etching a part of the TMR layer and a part of the pair of bias-applying layers with the resist layer being as a mask. Here, the reflectivity R for the incident light having a wavelength of 248 nm at an interface between the metal layer and the resist layer is set so as to satisfy the condition represented by the following formula (1), and also the magnitude D of a step is set so as to satisfy the condition represented by the following formula (2). R≧0.2   (1) D≧210 exp(−7.6R) [nm]   (2)

摘要翻译： 制造薄膜磁头的方法包括以下步骤：在形成在下磁屏蔽层上的TMR层的预定区域中形成一对开口; 在所述一对开口中形成一对偏置施加层，使得其上表面可以位于所述TMR层的上表面之上; 层叠覆盖位于所述TMR层中的所述一对偏置施加层之间的部分的上表面的金属层和所述一对偏置施加层的上表面; 在位于所述金属层中的所述一对偏置施加层上方的部分的上表面和位于所述金属层中的所述TMR层上方的部分的上表面上形成抗蚀剂层; 并且将抗蚀剂层作为掩模蚀刻TMR层的一部分和一对偏置施加层的一部分。 这里，在金属层和抗蚀剂层之间的界面处的波长为248nm的入射光的反射率R被设定为满足由下式（1）表示的条件，也设定为 设定步骤以满足由下式（2）表示的条件。 <？in-line-formula description =“In-line Formulas”end =“lead”？> R> = 0.2（1）<？in-line-formula description =“In-line Formulas”end =“tail”？ > <？in-line-formula description =“在线公式”end =“lead”？> D> = 210 exp（-7.6R）[nm]（2）<？in-line-formula description =“In “公式”end =“tail”？>

公开(公告)号：US08374061B2

公开(公告)日：2013-02-12

申请号：US12190381

申请日：2008-08-12

申请人： Kosuke Tanaka ,  Koji Shimazawa ,  Yasuhiro Ito

发明人： Kosuke Tanaka ,  Koji Shimazawa ,  Yasuhiro Ito

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A slider has a slider substrate, an electromagnetic transducer, a waveguide for receiving light from a surface on the side opposite from a medium-opposing surface and guiding the light to the medium-opposing surface side, and a device electrode electrically connected to the electromagnetic transducer. A light source unit includes a light source supporting substrate, a light source, and a lead extending from the slider side to the side opposite from the slider and having both end parts exposed at a surface of the light source unit. The device electrode of the slider is exposed at the surface of the slider on the side opposite from the medium-opposing surface without being covered with the light source unit. An end part on the slider side of the lead of the light source unit is soldered to the device electrode of the slider.

摘要翻译： 滑块具有滑块基板，电磁换能器，用于从与介质相对表面相对的一侧上的表面接收光并将光引导到介质相对表面侧的波导，以及电连接到电磁 传感器。 光源单元包括光源支撑基板，光源和从滑块侧延伸到与滑块相对的一侧的引线，并且两端部露出在光源单元的表面。 滑块的器件电极在与中间相对表面相对的一侧的滑块的表面处被暴露，而不被光源单元覆盖。 将光源单元的引线的滑块侧的端部焊接到滑块的器件电极。

公开(公告)号：US20120044790A1

公开(公告)日：2012-02-23

申请号：US12860349

申请日：2010-08-20

申请人： Koji SHIMAZAWA ,  Kosuke Tanaka ,  Takashi Honda

发明人： Koji SHIMAZAWA ,  Kosuke Tanaka ,  Takashi Honda

IPC分类号： G11B11/00

CPC分类号： G11B5/4853 ,  G11B5/105 ,  G11B5/314 ,  G11B5/486 ,  G11B5/6088 ,  G11B2005/0021

摘要： Provided is a head gimbal assembly (HGA) in which the electrodes for a thermally-assisted magnetic recording head comprising a light source, a photodetector and a magnetic head element, can be reliably electrically connected to wiring members by solder ball bonding (SBB). The HGA comprises a suspension comprising: a base; a first wiring member for the light source and the photodetector, provided on a side of one surface of the base; and a second wiring member for the magnetic head element, provided on the same surface side. The first and second wiring members protrude from the base toward the head to be fixed. As a result, the end portions (connection pads) of the first and second wiring members can be located close to electrodes for light-source and photodetector and electrodes for magnetic head element, respectively. This arrangement enables the end portions of the first and second wiring members to be reliably electrically connected to the electrodes by SBB.

摘要翻译： 提供了一种头万向架组件（HGA），其中包括光源，光电检测器和磁头元件的热辅助磁记录头的电极可以通过焊球接合（SBB）可靠地电连接到布线构件。 HGA包括悬浮液，其包含：碱; 用于所述光源和所述光电检测器的第一配线构件，设置在所述基座的一个表面的一侧; 以及设置在同一表面侧的用于磁头元件的第二配线构件。 第一和第二布线构件从基部朝向头部突出以被固定。 结果，第一和第二布线构件的端部（连接焊盘）可以分别位于光源和光电检测器的电极和磁头元件的电极附近。 通过这种布置，可以通过SBB将第一和第二布线构件的端部可靠地电连接到电极。

公开(公告)号：US07940486B2

公开(公告)日：2011-05-10

申请号：US11892882

申请日：2007-08-28

申请人： Koji Shimazawa ,  Kosuke Tanaka ,  Takaaki Domon

发明人： Koji Shimazawa ,  Kosuke Tanaka ,  Takaaki Domon

IPC分类号： G11B11/105 ,  G11B11/10 ,  G11B5/02 ,  G11B7/135 ,  G11B7/125

CPC分类号： G11B5/02 ,  G11B5/314 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A laser diode is fixed to a light source support substrate and a first surface of a slider substrate is fixed to a second surface of the light source support substrate; therefore, the slider substrate and the laser diode are kept in a fixed positional relation. Since the laser diode faces a light entrance face of a core, long-distance propagation of light as in the conventional technology does not occur, and light emitted from a light emitting element is guided well to a medium-facing surface while permitting some mounting error and coupling loss of light. A spot size w of a light intensity distribution along the X-axis in the XY plane including an incident-light centroid position on the light entrance face is set larger than a thickness of the core, whereby variation in incidence efficiency is well suppressed against positional deviation.

摘要翻译： 激光二极管被固定到光源支撑基板上，并且滑块基板的第一表面固定到光源支撑基板的第二表面; 因此，滑块基板和激光二极管保持固定的位置关系。 由于激光二极管面向芯的光入射面，因此不会像现有技术那样发生长距离传播光，并且从发光元件发出的光很好地被引导到面向中间的表面，同时允许一些安装误差 和光耦合损耗。 在包括光入射面上的入射光重心位置的XY平面中沿着X轴的光强度分布的光斑尺寸w被设定为大于芯的厚度，由此良好地抑制了位置上的入射效率的变化 偏差。

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。

公开(公告)号：US20080043360A1

公开(公告)日：2008-02-21

申请号：US11889736

申请日：2007-08-16

申请人： Koji Shimazawa ,  Kosuke Tanaka ,  Takaaki Domon

发明人： Koji Shimazawa ,  Kosuke Tanaka ,  Takaaki Domon

IPC分类号： G11B5/02

CPC分类号： G11B5/02 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A thermally assisted magnetic head has a slider having a medium-facing surface, and a light source unit having a light source support substrate, and a light source disposed on the light source support substrate. The slider has a slider substrate and a magnetic head portion disposed on a side of the medium-facing surface in the slider substrate; the magnetic head portion includes a magnetic recording element for generating a magnetic field, and a waveguide for receiving light through an end face opposite to the medium-facing surface, and guiding the light to the medium-facing surface; the light source support substrate is fixed to a surface opposite to the medium-facing surface in the slider substrate so that light emitted from the light source can enter the end face of the waveguide.

摘要翻译： 热辅助磁头具有具有中等面向表面的滑块和具有光源支撑基板的光源单元和设置在光源支撑基板上的光源。 滑块具有滑块基板和设置在滑块基板中的介质相对表面侧的磁头部分; 磁头部分包括用于产生磁场的磁记录元件和用于通过与中介面相对的端面接收光并将光引导到面向中介面的波导; 光源支撑基板被固定到与滑动器基板中的面向中间的表面相对的表面，使得从光源发射的光可以进入波导的端面。

公开(公告)号：US20050013063A1

公开(公告)日：2005-01-20

申请号：US10889053

申请日：2004-07-13

申请人： Kosuke Tanaka ,  Koji Shimazawa ,  Koichi Terunuma ,  Tomoaki Shimizu

发明人： Kosuke Tanaka ,  Koji Shimazawa ,  Koichi Terunuma ,  Tomoaki Shimizu

IPC分类号： G11B5/39 ,  G11B5/33 ,  H01F10/16 ,  H01L43/08

CPC分类号： G11B5/3932 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/098 ,  Y10T428/1107 ,  Y10T428/1121

摘要： A pair of domain control layers are disposed on both sides of the track width direction of the MR film so as to be separated from each other such that the MR film is held therebetween, and apply a longitudinal magnetic field to the MR film (free layer). The MR film is flanked by the domain control layers, each including a layer structure constituted by a base layer, a ferromagnetic layer, and a hard magnetic layer. The base layer causes the hard magnetic layer to have a magnetization direction aligning with an in-plane direction, so as to enhance the coercive force of the hard magnetic layer.

摘要翻译： 一对域控制层设置在MR膜的轨道宽度方向的两侧，以便彼此分离，使得MR膜保持在它们之间，并将纵向磁场施加到MR膜（自由层 ）。 MR膜侧面是域控制层，每个层包括由基层，铁磁层和硬磁性层构成的层结构。 基层使得硬磁性层具有与面内方向对准的磁化方向，以增强硬磁性层的矫顽力。