公开(公告)号：US08400885B2

公开(公告)日：2013-03-19

申请号：US13097133

申请日：2011-04-29

申请人： Daisuke Miyauchi ,  Tetsuya Roppongi ,  Kosuke Tanaka ,  Tsutomu Chou ,  Eiji Komura

发明人： Daisuke Miyauchi ,  Tetsuya Roppongi ,  Kosuke Tanaka ,  Tsutomu Chou ,  Eiji Komura

IPC分类号： G11B13/08

CPC分类号： G11B5/314 ,  G11B5/3116 ,  G11B5/6088 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes: a pole that generates a writing magnetic field from an end surface that forms a part of an air bearing surface that opposes a magnetic recording medium; a waveguide that propagates light to excite surface plasmon; and a plasmon generator that is provided between the pole and the waveguide and that generates near-field light from a near-field light generating end surface that forms a part of the air bearing surface by coupling with the light in a surface plasmon mode. The plasmon generator includes a flat plate part and a projection part that projects from the flat plate part to the waveguide side and is provided closer to a trailing side than the pole is.

摘要翻译： 一种热辅助磁记录头，包括：从端面产生书写磁场的极，所述磁场形成与磁记录介质相对的空气轴承表面的一部分; 将光传播到激发表面等离子体激元的波导; 以及等离子体发生器，其设置在所述极与所述波导之间，并且通过以表面等离子体模式与所述光结合而从形成所述空气轴承表面的一部分的近场光产生端面产生近场光。 等离子体发生器包括平板部分和突出部分，其从平板部分突出到波导侧并且设置成比杆靠后的后侧。

公开(公告)号：US20120275280A1

公开(公告)日：2012-11-01

申请号：US13097133

申请日：2011-04-29

申请人： Daisuke MIYAUCHI ,  Tetsuya Roppongi ,  Kosuke Tanaka ,  Tsutomu Chou ,  Eiji Komura

发明人： Daisuke MIYAUCHI ,  Tetsuya Roppongi ,  Kosuke Tanaka ,  Tsutomu Chou ,  Eiji Komura

IPC分类号： G11B13/08

CPC分类号： G11B5/314 ,  G11B5/3116 ,  G11B5/6088 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes: a pole that generates a writing magnetic field from an end surface that forms a part of an air bearing surface that opposes a magnetic recording medium; a waveguide that propagates light to excite surface plasmon; and a plasmon generator that is provided between the pole and the waveguide and that generates near-field light from a near-field light generating end surface that forms a part of the air bearing surface by coupling with the light in a surface plasmon mode. The plasmon generator includes a flat plate part and a projection part that projects from the flat plate part to the waveguide side and is provided closer to a trailing side than the pole is.

摘要翻译： 一种热辅助磁记录头，包括：从端面产生书写磁场的极，所述磁场形成与磁记录介质相对的空气轴承表面的一部分; 将光传播到激发表面等离子体激元的波导; 以及等离子体发生器，其设置在所述极和所述波导之间，并且通过以表面等离子体模式与所述光结合而从形成所述空气轴承表面的一部分的近场光产生端面产生近场光。 等离子体发生器包括平板部分和突出部分，其从平板部分突出到波导侧，并且设置成比杆极靠近尾部。

公开(公告)号：US08351308B2

公开(公告)日：2013-01-08

申请号：US12892540

申请日：2010-09-28

申请人： Tsutomu Chou ,  Eiji Komura ,  Shinji Hara ,  Kosuke Tanaka ,  Daisuke Miyauchi

发明人： Tsutomu Chou ,  Eiji Komura ,  Shinji Hara ,  Kosuke Tanaka ,  Daisuke Miyauchi

IPC分类号： G11B11/00

CPC分类号： G11B5/3116 ,  G02B5/008 ,  G11B5/314 ,  G11B5/3163 ,  G11B2005/0021

摘要： A thermally assisted magnetic head includes a magnetic pole that generates a writing magnetic field from an air bearing surface (ABS); a waveguide through which light propagates; and a plasmon generator generating near-field light from a near-field light generating end surface by coupling the light thereto in a surface plasmon mode. The magnetic pole includes a convex part protruding in a substantially V-shape along a light propagation direction of the waveguide. The plasmon generator includes a substantially V-shaped part contacting the convex part, and as seen from a side of the ABS, a thickness of the plasmon generator in a direction perpendicular to convex part contacting sides gradually increases from an end in a direction away from the waveguide, the convex part contacting sides being linear sides that form the substantially V-shaped part of the plasmon generator and contacting the convex part.

摘要翻译： 热辅助磁头包括从空气轴承表面（ABS）产生书写磁场的磁极; 光传播的波导; 以及等离子体发生器，其通过以表面等离子体激发模式将光耦合到其上，从近场光产生端面产生近场光。 磁极包括沿波导的光传播方向大致V形突出的凸部。 等离子体发生器包括接触凸部的大致V形部分，并且从ABS的侧面看，等离子体发生器在与凸部接触的方向垂直的方向上的厚度从远离方向的端部逐渐增加 所述波导，所述凸部接触侧为直线侧，其形成所述等离子体发生器的大致V形部分并接触所述凸部。

公开(公告)号：US20120075967A1

公开(公告)日：2012-03-29

申请号：US12892540

申请日：2010-09-28

申请人： Tsutomu Chou ,  Eiji Komura ,  Shinji Hara ,  Kosuke Tanaka ,  Daisuke Miyauchi

发明人： Tsutomu Chou ,  Eiji Komura ,  Shinji Hara ,  Kosuke Tanaka ,  Daisuke Miyauchi

IPC分类号： G11B11/24

CPC分类号： G11B5/3116 ,  G02B5/008 ,  G11B5/314 ,  G11B5/3163 ,  G11B2005/0021

摘要： A thermally assisted magnetic head includes a magnetic pole that generates a writing magnetic field from an air bearing surface (ABS); a waveguide through which light propagates; and a plasmon generator generating near-field light from a near-field light generating end surface by coupling the light thereto in a surface plasmon mode. The magnetic pole includes a convex part protruding in a substantially V-shape along a light propagation direction of the waveguide. The plasmon generator includes a substantially V-shaped part contacting the convex part, and as seen from a side of the ABS, a thickness of the plasmon generator in a direction perpendicular to convex part contacting sides gradually increases from an end in a direction away from the waveguide, the convex part contacting sides being linear sides that form the substantially V-shaped part of the plasmon generator and contacting the convex part.

摘要翻译： 热辅助磁头包括从空气轴承表面（ABS）产生书写磁场的磁极; 光传播的波导; 以及等离子体发生器，其通过以表面等离子体激发模式将光耦合到其上，从近场光产生端面产生近场光。 磁极包括沿波导的光传播方向大致V形突出的凸部。 等离子体发生器包括接触凸部的大致V形部分，并且从ABS的侧面看，等离子体发生器在与凸部接触的方向垂直的方向上的厚度从远离方向的端部逐渐增加 所述波导，所述凸部接触侧为直线侧，其形成所述等离子体发生器的大致V形部分并接触所述凸部。

公开(公告)号：US20110228419A1

公开(公告)日：2011-09-22

申请号：US12728600

申请日：2010-03-22

申请人： Kosuke Tanaka ,  Daisuke Miyauchi ,  Susumu Aoki ,  Tetsuya Roppongi ,  Tsutomu Chou ,  Shinji Hara ,  Eiji Komura

发明人： Kosuke Tanaka ,  Daisuke Miyauchi ,  Susumu Aoki ,  Tetsuya Roppongi ,  Tsutomu Chou ,  Shinji Hara ,  Eiji Komura

IPC分类号： G11B5/02

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 propagation edge, and has a near-field light generating part lying at an end of the propagation edge and located in a medium facing surface. The propagation edge faces an evanescent light generating surface of a waveguide's core with a predetermined distance therebetween and extends in a direction perpendicular to the medium facing surface. The propagation edge is arc-shaped in a cross section parallel to the medium facing surface. The plasmon generator includes a shape changing portion in which a radius of curvature of the propagation edge in the cross section parallel to the medium facing surface continuously decreases with decreasing distance to the medium facing surface.

摘要翻译： 等离子体发生器具有包括传播边缘的外表面，并且具有位于传播边缘的末端并位于面向介质的表面中的近场光产生部分。 传播边缘面向波导芯的ev逝光产生表面，其间具有预定距离，并且在垂直于介质面向表面的方向上延伸。 传播边缘在平行于面向介质的表面的横截面中是弧形的。 等离子体发生器包括形状改变部分，其中平面于介质面向表面的横截面中的传播边缘的曲率半径随着到面向介质的表面的距离的减小而连续地减小。

公开(公告)号：US08305849B2

公开(公告)日：2012-11-06

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： G11B11/00

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。

公开(公告)号：US08432773B2

公开(公告)日：2013-04-30

申请号：US12962878

申请日：2010-12-08

申请人： Shinji Hara ,  Kosuke Tanaka ,  Keita Kawamori ,  Daisuke Miyauchi ,  Takahiko Izawa ,  Eiji Komura

发明人： Shinji Hara ,  Kosuke Tanaka ,  Keita Kawamori ,  Daisuke Miyauchi ,  Takahiko Izawa ,  Eiji Komura

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y10/00 ,  B82Y25/00 ,  G11B2005/0021

摘要： A thermally-assisted magnetic head that has an air bearing surface (ABS) facing a recording medium and that performs magnetic recording while heating the recording medium includes: a magnetic recording element that includes a pole of which an edge part is positioned on the ABS and which generates magnetic flux traveling to the recording medium; a waveguide that is configured with a core through which light propagates and a cladding, surrounding a periphery of the core, at least one part of which extends to the ABS; a plasmon generator that faces a part of the core and that extends toward the ABS side; and a bank layer that is positioned between the plasmon generator and the pole, and of which an edge part on the ABS side protrudes relative to the plasmon generator.

摘要翻译： 具有面向记录介质的空气轴承表面（ABS）并且在加热记录介质的同时执行磁记录的热辅助磁头包括：磁记录元件，其包括边缘部分位于ABS上的极点和 其产生传播到记录介质的磁通量; 波导，其配置有光传播的芯和包围芯，围绕芯的周边，其至少一部分延伸到ABS; 等离子体发生器，其面向所述芯的一部分并朝向ABS侧延伸; 以及位于等离子体发生器和极之间的堤层，并且ABS侧上的边缘部分相对于等离子体发生器突出。

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：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。