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1. 发明授权

US08179747B1 Thermally assisted magnetic head 有权
标题翻译：热辅助磁头
公开(公告)号：US08179747B1
公开(公告)日：2012-05-15
申请号：US13036590
申请日：2011-02-28
申请人： Yoichi Mugino , Tsuguki Noma , Minoru Akutsu , Koji Shimazawa
发明人： Yoichi Mugino , Tsuguki Noma , Minoru Akutsu , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/6088 , G11B5/314 , G11B2005/0021
摘要： A thermally assisted magnetic head includes a slider and a light source unit. The light source unit includes a semiconductor laser diode. The semiconductor laser diode includes an n-type (Alx1Ga(1-x1))0.51In0.49P cladding layer, a p-type (Alx1Ga(1-x1))0.51In0.49P cladding layer, an n-side Alx2Ga(1-x2)As guide layer placed between these cladding layers, a p-side Alx2Ga(1-x2)As guide layer placed between these cladding layers, and an active layer placed between these guide layers.
摘要翻译：热辅助磁头包括滑块和光源单元。光源单元包括半导体激光二极管。半导体激光二极管包括n型（Alx1Ga（1-x1））0.51In0.49P包层，p型（Alx1Ga（1-x1））0.51In0.49P包层，n侧Alx2Ga（1 -x2）作为位于这些包覆层之间的引导层，配置在这些覆盖层之间的p侧Al x Al 2 Ga（1-x 2）As引导层和位于这些引导层之间的有源层。

2. 发明授权

US08957692B2 Method for performing burn-in test 有权
标题翻译：执行老化测试的方法
公开(公告)号：US08957692B2
公开(公告)日：2015-02-17
申请号：US12958692
申请日：2010-12-02
申请人： Koji Shimazawa , Masaaki Kaneko , Takashi Honda , Yoichi Mugino , Yoshito Nishioka , Tsuguki Noma
发明人： Koji Shimazawa , Masaaki Kaneko , Takashi Honda , Yoichi Mugino , Yoshito Nishioka , Tsuguki Noma
IPC分类号： G01R31/00 , G11B5/455 , H01S5/00 , G11B5/105 , G11B5/31 , G01R31/26 , G11B5/00
CPC分类号： G11B5/455 , G01R31/2635 , G01R31/2642 , G11B5/105 , G11B5/3166 , G11B5/3173 , G11B2005/0021 , H01S5/0021 , H01S5/0042
摘要： Provided is a method for performing a burn-in test on an object under test in which a plurality of electrodes are provided in positions at different heights. The method comprising steps of: preparing an object under test in which an electrode in a higher position have a higher surface roughness among the plurality of electrodes; bringing a plurality of sheet-type probes into contact with the plurality of electrodes, respectively; and supplying an electric current with the plurality of electrodes through the plurality of sheet-type probes. By implementing the method, the sheet-type probes can be kept in stable contact with the electrodes because electrodes in a higher position have a higher surface roughness Ra than electrodes in a lower position. Consequently, stable and reliable burn-in test can be performed.
摘要翻译：提供了一种用于对被测物体进行老化测试的方法，其中多个电极设置在不同高度的位置。该方法包括以下步骤：制备被测物体，其中较高位置的电极在多个电极中具有较高的表面粗糙度; 使多个片式探针分别与多个电极接触; 并且通过所述多个片式探针向所述多个电极提供电流。通过实施该方法，片状探针可以保持与电极的稳定接触，因为较高位置的电极具有比较低位置的电极更高的表面粗糙度Ra。因此，可以进行稳定可靠的老化测试。

3. 发明授权

US08509036B2 Method of burn-in testing for thermally assisted head 有权
标题翻译：热辅助头的老化测试方法
公开(公告)号：US08509036B2
公开(公告)日：2013-08-13
申请号：US12964168
申请日：2010-12-09
申请人： Koji Shimazawa , Kosuke Tanaka , Ryuji Fujii , Takashi Honda , Yoshiteru Nagai , Tsuguki Noma , Hosei Mitsuzawa
发明人： Koji Shimazawa , Kosuke Tanaka , Ryuji Fujii , Takashi Honda , Yoshiteru Nagai , Tsuguki Noma , Hosei Mitsuzawa
IPC分类号： G11B11/00 , G11B5/127 , G01R31/00
CPC分类号： G11B5/3166 , G11B5/314 , G11B5/3173 , G11B5/3189 , G11B2005/0021 , H01L2924/0002 , Y10T29/49021 , Y10T29/49032 , H01L2924/00
摘要： A plurality of laser diode units is tested in a bar state, each of the laser diode units in which a laser diode that includes a first electrode and a second electrode formed on surfaces facing each other and that is mounted on a mounting surface of a submount such that the first electrode faces the mounting surface of the submount. The method includes preparing a bar in which mounting areas each of which includes the laser diode unit formed thereon and dicing margins for separating the bar into the separate laser diode units are alternatively aligned along a longitudinal direction wherein a first pad electrically connected with the first electrode of the laser diode is disposed on the mounting surface of each of the mounting areas of the submounts and a second pad electrically connected to the first pad of either one of the mounting areas that are adjacent to the dicing margin is disposed on the mounting surface of each of the dicing margins of the submounts: contacting sheet-shaped probes to the second electrode and the second pad at a slantwise angle with respect to the second electrode and the second pad, and pressing the probes to the second electrode and the second pad while deforming the probes; and providing a potential difference between the second electrode and the second pad through the probes so that the laser diode emits laser light.
摘要翻译：在棒状态下测试多个激光二极管单元，每个激光二极管单元中包括形成在彼此面对并且安装在基座的安装表面上的第一电极和第二电极的激光二极管使得第一电极面向基座的安装表面。该方法包括准备一个条，其中每个包括形成在其上的激光二极管单元的安装区域和用于将条分离成单独的激光二极管单元的切割边缘沿纵向方向排列，其中第一焊盘与第一电极电连接激光二极管的安装面设置在基座的每个安装区域的安装表面上，并且电连接到与切割边缘相邻的安装区域中的任一个的第一焊盘的第二焊盘设置在底座的每个切割边缘：将片状探针以相对于第二电极和第二焊盘倾斜角度的方式接触第二电极和第二焊盘，并将探针按压到第二电极和第二焊盘，同时使探头变形; 并且通过探针在第二电极和第二焊盘之间提供电位差，使得激光二极管发射激光。

4. 发明申请

US20120147717A1 METHOD OF BURN-IN TESTING FOR THERMALLY ASSISTED HEAD 有权
标题翻译：热辅助头部测试方法
公开(公告)号：US20120147717A1
公开(公告)日：2012-06-14
申请号：US12964168
申请日：2010-12-09
申请人： Koji Shimazawa , Kosuke Tanaka , Ryuji Fujii , Takashi Honda , Yoshiteru Nagai , Tsuguki Noma , Hosei Mitsuzawa
发明人： Koji Shimazawa , Kosuke Tanaka , Ryuji Fujii , Takashi Honda , Yoshiteru Nagai , Tsuguki Noma , Hosei Mitsuzawa
IPC分类号： G11B13/08 , G11B5/127 , H01L23/488 , H01L31/02 , G01R31/44 , H01S5/40
CPC分类号： G11B5/3166 , G11B5/314 , G11B5/3173 , G11B5/3189 , G11B2005/0021 , H01L2924/0002 , Y10T29/49021 , Y10T29/49032 , H01L2924/00
摘要： A plurality of laser diode units is tested in a bar state, each of the laser diode units in which a laser diode that includes a first electrode and a second electrode formed on surfaces facing each other and that is mounted on a mounting surface of a submount such that the first electrode faces the mounting surface of the submount. The method includes preparing a bar in which mounting areas each of which includes the laser diode unit formed thereon and dicing margins for separating the bar into the separate laser diode units are alternatively aligned along a longitudinal direction wherein a first pad electrically connected with the first electrode of the laser diode is disposed on the mounting surface of each of the mounting areas of the submounts and a second pad electrically connected to the first pad of either one of the mounting areas that are adjacent to the dicing margin is disposed on the mounting surface of each of the dicing margins of the submounts: contacting sheet-shaped probes to the second electrode and the second pad at a slantwise angle with respect to the second electrode and the second pad, and pressing the probes to the second electrode and the second pad while deforming the probes; and providing a potential difference between the second electrode and the second pad through the probes so that the laser diode emits laser light.
摘要翻译：在棒状态下测试多个激光二极管单元，每个激光二极管单元中包括形成在彼此面对并且安装在基座的安装表面上的第一电极和第二电极的激光二极管使得第一电极面向基座的安装表面。该方法包括准备一个条，其中每个包括形成在其上的激光二极管单元的安装区域和用于将条分离成单独的激光二极管单元的切割边缘沿纵向方向排列，其中第一焊盘与第一电极电连接激光二极管的安装面设置在基座的每个安装区域的安装表面上，并且电连接到与切割边缘相邻的安装区域中的任一个的第一焊盘的第二焊盘设置在底座的每个切割边缘：将片状探针以相对于第二电极和第二焊盘倾斜角度的方式接触第二电极和第二焊盘，并将探针按压到第二电极和第二焊盘，同时使探头变形; 并且通过探针在第二电极和第二焊盘之间提供电位差，使得激光二极管发射激光。

5. 发明授权

US08427927B1 Thermally-assisted magnetic recording head, head gimbals assembly, head arm assembly, and magnetic disk unit 有权
标题翻译：热辅助磁记录头，头架万向节组件，头臂组件和磁盘单元
公开(公告)号：US08427927B1
公开(公告)日：2013-04-23
申请号：US13370982
申请日：2012-02-10
申请人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
发明人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/3163 , G11B5/6088 , G11B2005/0021
摘要： The thermally-assisted magnetic recording head includes: a magnetic pole; a waveguide allowing a transverse-electric (TE) wave oscillating in a cross-track direction to propagate toward an air bearing surface; and a plasmon generator having a tip portion near the air bearing surface, the tip portion being provided to overlap, in a down-track direction, with both the magnetic pole and the waveguide, and having a quadrangular cross-section substantially parallel to the air bearing surface.
摘要翻译：热辅助磁记录头包括：磁极; 允许在横向轨道方向上振荡的横向电（TE）波向空气轴承表面传播的波导; 以及等离子体发生器，其具有靠近所述空气支承表面的尖端部分，所述尖端部分被设置为沿着磁道和所述波导两者的向下轨道方向重叠，并且具有基本上平行于所述空气的四边形横截面承载面。

6. 发明授权

US08374061B2 Thermally-assisted magnetic recording head capable of reducing the number of binding wires 有权
标题翻译：热辅助磁记录头，能够减少装订线的数量
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。

7. 发明授权

US08363515B1 Thermally-assisted magnetic recording head, head gimbals assembly, head arm assembly, and magnetic disk unit 有权
标题翻译：热辅助磁记录头，头架万向节组件，头臂组件和磁盘单元
公开(公告)号：US08363515B1
公开(公告)日：2013-01-29
申请号：US13397041
申请日：2012-02-15
申请人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi , Kosuke Tanaka
发明人： Tsutomu Chou , Koji Shimazawa , Shinji Hara , Eiji Komura , Ryo Hosoi , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/6088 , G11B5/314 , G11B2005/0021
摘要： The thermally-assisted magnetic recording head includes: a magnetic pole; a waveguide propagating light in a first direction, the first direction intersecting with an air bearing surface; a plasmon generator having a base and a projection, the base having a surface, and the projection having a top, standing partially on the surface of the base and extending in the first direction. The plasmon generator has a first portion and a second portion, and the first portion and the second portion are provided in this order from the air bearing surface in a direction away from the air bearing surface. Herein, the top of the projection and the surface of the base in the first portion define a first step, and the top of the projection and the surface of the base in the second portion define a second step. The first step is larger than the second step.
摘要翻译：热辅助磁记录头包括：磁极; 波导在第一方向传播光，所述第一方向与空气轴承表面相交; 具有基部和突起的等离子体发生器，所述基部具有表面，并且所述突起具有顶部，部分地位于所述基部的所述表面上并沿所述第一方向延伸。等离子体发生器具有第一部分和第二部分，并且第一部分和第二部分沿着远离空气支承表面的方向从空气轴承表面依次设置。这里，突起的顶部和第一部分中的基部的表面限定第一步骤，并且突起的顶部和第二部分中的基部的表面限定第二步骤。第一步大于第二步。

8. 发明授权

US08325568B2 Thermally-assisted magnetic recording head comprising characteristic clads 有权
标题翻译：包括特征包层的热辅助磁记录头
公开(公告)号：US08325568B2
公开(公告)日：2012-12-04
申请号：US12848422
申请日：2010-08-02
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a thermally-assisted magnetic recording head with improved light density of near-field light (NF-light) with which a medium is irradiated. The head comprises: a magnetic pole; a waveguide for propagating light for exciting surface plasmon; a surface plasmon generator provided between the magnetic pole and the waveguide, coupled with the light in a surface plasmon mode, and emitting NF-light; and a clad portion provided at least between the waveguide and the surface plasmon generator and comprising a transition region in which a refractive index decreases along a direction from the waveguide toward the magnetic pole. The provision of the clad portion including the transition region enables improvement of the light density of NF-light due to the convergence of surface plasmon excited in the surface plasmon generator to predetermined locations, while avoiding the problem of temperature rise due to reduction of the volume of surface plasmon generator.
摘要翻译：提供了一种具有改善的照射介质的近场光（NF光）的光密度的热辅助磁记录头。磁头包括：磁极; 用于传播激发表面等离子体激元的光的波导; 设置在磁极和波导之间的表面等离子体发生器，与表面等离子体模式的光耦合，并发射NF光; 以及至少在波导管和表面等离子体激元发生器之间设置的包层部分，并且包括其中折射率沿着从波导到磁极的方向减小的过渡区域。提供包括过渡区域的包层部分能够改善由于表面等离子体发生器中激发的表面等离子激元的会聚而导致的NF光的光密度到预定位置，同时避免了由于体积的减小导致的温度上升的问题的表面等离子体发生器。

9. 发明授权

US08325566B2 Thermally-assisted magnetic recording head having a light source at least inclined from an opposed-to-medium surface 有权
标题翻译：热辅助磁记录头具有至少相对中间表面倾斜的光源
公开(公告)号：US08325566B2
公开(公告)日：2012-12-04
申请号：US12407420
申请日：2009-03-19
申请人： Koji Shimazawa , Eiji Komura
发明人： Koji Shimazawa , Eiji Komura
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head is provided, in which a light source with a sufficient power is disposed in the element-integration surface to improve mass-productivity. The head comprises, in an element-integration surface of a substrate: a light source; a waveguide for propagating light from the light source; and a magnetic pole for generating write field. Further, the edge along optical axis of the light source is set to be parallel with or inclined from the edge on the opposed-to-medium surface side of the element-integration surface. In the head, since the light source is disposed in the element-integration surface, the construction of the optical system can be completed in the stage of a wafer process. This construction can be relatively facilitated and simplified; thus, mass-productivity in the head manufacturing can be improved. Further, a light source with a sufficient power (cavity length) can be disposed in the element-integration surface.
摘要翻译：提供一种热辅助磁记录头，其中具有足够功率的光源设置在元件整合表面中以提高批量生产率。头部包括在基板的元件集成表面中：光源; 用于从光源传播光的波导; 以及用于产生写入场的磁极。此外，沿着光源的光轴的边缘被设定为与元件整合表面的相对中介表面侧上的边缘平行或倾斜。在磁头中，由于光源设置在元件集成表面中，所以可以在晶片工艺的阶段完成光学系统的结构。这种结构可以相对便利和简化; 因此，可以提高头部制造中的批量生产率。此外，具有足够功率（空腔长度）的光源可以设置在元件集成表面中。

10. 发明授权

US08270261B2 Thermally-assisted magnetic recording head comprising waveguide with inverted-trapezoidal shape 有权
标题翻译：热辅助磁记录头包括具有倒梯形形状的波导
公开(公告)号：US08270261B2
公开(公告)日：2012-09-18
申请号：US12683041
申请日：2010-01-06
申请人： Eiji Komura , Tsutomu Chou , Koji Shimazawa , Kosuke Tanaka
发明人： Eiji Komura , Tsutomu Chou , Koji Shimazawa , Kosuke Tanaka
IPC分类号： G11B11/00
CPC分类号： G11B5/3116 , G11B5/314 , G11B5/6088 , G11B2005/0005 , G11B2005/0021
摘要： Provided is a thermally-assisted magnetic recording head comprising a near-field-light-generating (NFL-generating) optical system with an improved light use efficiency. The head comprises a magnetic pole, a waveguide propagating a light for exciting surface plasmon, and a NF-optical device configured to emit NF-light from its end surface located adjacent to the magnetic pole end surface. The waveguide cross-section, taken by a plane perpendicular to a waveguide edge along elongated direction, has substantially a trapezoidal shape in which a longer side of opposed parallel sides is an edge of the cross-section on the NF-optical device side. This configuration enables a coupled portion of the NF-optical device which is coupled with the light to be placed in the effective distribution range of the light seeping from the waveguide. Consequently, there can be realized a sufficiently strong coupling between the light seeping from the waveguide and the NF-optical device.
摘要翻译：提供了一种热辅助磁记录头，其包括具有改善的光利用效率的近场光产生（NFL生成）光学系统。头包括磁极，传播用于激发表面等离子体激元的光的波导和被配置为从其邻近磁极端表面的端表面发射NF光的NF光学装置。波导横截面由沿着细长方向垂直于波导边缘的平面截取，具有基本上梯形的形状，其中相对的平行边的较长边是NF光学器件侧的横截面的边缘。该配置使得能够将与光耦合的NF光学器件的耦合部分放置在从波导管渗出的光的有效分布范围内。因此，可以实现从波导管和NF光学器件渗出的光之间的足够强的耦合。

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