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1. 发明申请

US20110286128A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR 有权
标题翻译：热辅助磁记录头，包括等离子发生器
公开(公告)号：US20110286128A1
公开(公告)日：2011-11-24
申请号：US12785897
申请日：2010-05-24
申请人： Takeshi TSUTSUMI , Daisuke MIYAUCHI , Tetsuya ROPPONGI , Kosuke TANAKA , Susumu AOKI , Takahiko IZAWA , Tsutomu CHOU
发明人： Takeshi TSUTSUMI , Daisuke MIYAUCHI , Tetsuya ROPPONGI , Kosuke TANAKA , Susumu AOKI , Takahiko IZAWA , Tsutomu CHOU
IPC分类号： G11B5/02 , G11B5/127
CPC分类号： G11B5/3163 , B82Y20/00 , G02B5/008 , G02B6/1226 , G11B5/1278 , G11B5/3116 , G11B5/314 , G11B5/6088 , G11B7/1384 , G11B7/1387 , G11B2005/0021 , Y10T29/49032
摘要： A plasmon generator has an outer surface including a plasmon exciting part that faces an evanescent light generating surface of a waveguide. The outer surface further includes first and second inclined surfaces that increase in distance from each other with increasing distance from the plasmon exciting part, and a front end face. The front end face has first and second portions that are connected to each other into a V-shape. The first portion includes a first side lying at an end of the first inclined surface. The second portion includes a second side lying at an end of the second inclined surface. An angle formed between a lower part of the first side and a lower part of the second side is smaller than that formed between an upper part of the first side and an upper part of the second side.
摘要翻译：等离子体发生器具有外表面，其包括面向波导的ev逝光产生表面的等离子体激元部分。外表面还包括第一和第二倾斜表面，该第一和第二倾斜表面随距距等离子体激元部分的距离增加而彼此间隔开，并且前端面。前端面具有彼此连接成V形的第一和第二部分。第一部分包括位于第一倾斜表面的端部的第一侧。第二部分包括位于第二倾斜表面的端部的第二侧。形成在第一侧的下部和第二侧的下部之间的角度小于在第一侧的上部和第二侧的上部之间形成的角度。

2. 发明申请

US20120230168A1 HEAT-ASSISTED MAGNETIC WRITE HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM ASSEMBLY, AND MAGNETIC DISK DEVICE 有权
标题翻译：热辅助磁头，头盔组件，头盔组件和磁盘设备
公开(公告)号：US20120230168A1
公开(公告)日：2012-09-13
申请号：US13045992
申请日：2011-03-11
申请人： Takahiko IZAWA , Tsutomu CHOU , Eiji KOMURA , Kosuke TANAKA
发明人： Takahiko IZAWA , Tsutomu CHOU , Eiji KOMURA , Kosuke TANAKA
IPC分类号： G11B13/04
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，朝向空气支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。

3. 发明申请

US20120213041A1 HEAT-ASSISTED MAGNETIC WRITE HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM ASSEMBLY, AND MAGNETIC DISK DEVICE 有权
标题翻译：热辅助磁头，头盔组件，头盔组件和磁盘设备
公开(公告)号：US20120213041A1
公开(公告)日：2012-08-23
申请号：US13029555
申请日：2011-02-17
申请人： Kosuke TANAKA , Tsutomu CHOU , Eiji KOMURA , Takahiko IZAWA
发明人： Kosuke TANAKA , Tsutomu CHOU , Eiji KOMURA , Takahiko IZAWA
IPC分类号： G11B13/08
CPC分类号： G11B5/6088 , G11B5/314 , G11B2005/0021
摘要： A heat-assisted magnetic write head includes: a magnetic pole having an end surface exposed to an air bearing surface; a waveguide extending toward the air bearing surface to propagate light; a plasmon generator provided between the magnetic pole and the waveguide and generating near-field light from the air bearing surface, based on the light propagated through the waveguide; and a clad provided to surround both the waveguide and the plasmon generator collectively, the clad having a refractive index lower than that of the waveguide, and exhibiting a thermal conductivity higher than that of the waveguide. The clad may be provided to collectively surround the magnetic pole, as well.
摘要翻译：一种热辅助磁写头包括：具有暴露于空气轴承表面的端面的磁极; 波导向空气轴承表面延伸以传播光; 基于通过波导传播的光，设置在磁极和波导之间并产生来自空气轴承表面的近场光的等离子体激元发生器; 以及包围所述波导和所述等离子体发生器两者的集合体，所述包层的折射率低于所述波导的折射率，并且具有高于所述波导的导热率。也可以提供包层以集中地围绕磁极。

4. 发明申请

US20110205860A1 HEAT-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR 有权
标题翻译：热辅助磁记录头，包括等离子发生器
公开(公告)号：US20110205860A1
公开(公告)日：2011-08-25
申请号：US12710129
申请日：2010-02-22
申请人： Tsutomu CHOU , Eiji KOMURA , Koji SHIMAZAWA , Kosuke TANAKA , Daisuke MIYAUCHI
发明人： Tsutomu CHOU , Eiji KOMURA , Koji SHIMAZAWA , Kosuke TANAKA , Daisuke MIYAUCHI
IPC分类号： G11B11/00 , G11B5/02
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A plasmon generator has an outer surface including a surface plasmon exciting surface, and has a near-field light generating part located in a medium facing surface. The surface plasmon exciting surface is a flat surface that faces an evanescent light generating surface of a waveguide with a predetermined distance therebetween. The surface plasmon exciting surface includes a width changing portion. The width of the width changing portion in a direction parallel to the medium facing surface and the evanescent light generating surface decreases with decreasing distance to the medium facing surface. A magnetic pole is located at such a position that the plasmon generator is interposed between the magnetic pole and the waveguide. The outer surface of the plasmon generator includes a pole contact surface that is in contact with the magnetic pole.
摘要翻译：等离子体发生器具有包括表面等离子体激元表面的外表面，并且具有位于介质面对表面中的近场光产生部。表面等离子体激元表面是面对波导的ev逝光产生表面的平坦表面，其间具有预定的距离。表面等离子体激元表面包括宽度改变部分。宽度改变部分在与面向介质的表面和ev逝光产生表面平行的方向上的宽度随着与面向介质的表面的距离的减小而减小。磁极位于这样的位置，等离子体发生器插入在磁极和波导之间。等离子体发生器的外表面包括与磁极接触的极接触表面。

5. 发明申请

US20090128965A1 CPP MAGNETO-RESISTIVE ELEMENT PROVIDED WITH A PAIR OF MAGNETIC LAYERS AND NICR BUFFER LAYER 审中-公开
标题翻译： CPP磁电元件提供一对磁性层和NICR缓冲层
公开(公告)号：US20090128965A1
公开(公告)日：2009-05-21
申请号：US11940511
申请日：2007-11-15
申请人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Shinji HARA , Koji SHIMAZAWA , Daisuke MIYAUCHI , Takahiko MACHITA , Tsutomu CHOU , Toshiyuki AYUKAWA , Hironobu MATSUZAWA , Tsuyoshi ICHIKI
发明人： Tomohito MIZUNO , Yoshihiro TSUCHIYA , Shinji HARA , Koji SHIMAZAWA , Daisuke MIYAUCHI , Takahiko MACHITA , Tsutomu CHOU , Toshiyuki AYUKAWA , Hironobu MATSUZAWA , Tsuyoshi ICHIKI
IPC分类号： G11B5/33
CPC分类号： G11B5/3912 , B82Y25/00 , G01R33/093 , G11B5/3906 , G11B5/3932 , H01L43/10
摘要： A magnetic field detecting element has a stack which includes a NiCr layer, a first magnetic layer whose magnetization direction varies in accordance with an external magnetic field, a non-magnetic spacer layer, and a second magnetic layer whose magnetization direction varies in accordance with the external magnetic field, said NiCr layer, said first magnetic layer, said spacer layer and said second magnetic layer being disposed in this order and being arranged in contact with each other, wherein a sense current is adapted to flow in a direction that is perpendicular to a film surface of said stack; and a bias magnetic layer which is disposed on a side of said stack, said side being opposite to an air bearing surface of said stack, wherein said bias magnetic layer is adapted to apply a bias magnetic field to said stack in a direction that is perpendicular to said air bearing surface. Both first and second magnetic layers have bcc crystalline structures, and said non-magnetic spacer layer has a film configuration in which an insulating layer or a semiconductor layer is inserted into a metal layer.
摘要翻译：磁场检测元件具有堆叠，其包括NiCr层，其磁化方向根据外部磁场变化的第一磁性层，非磁性间隔层和其磁化方向根据外部磁场，所述NiCr层，所述第一磁性层，所述间隔层和所述第二磁性层按此顺序设置并且彼此接触，其中感测电流适于沿垂直于所述堆叠的膜表面; 以及偏置磁性层，其设置在所述堆叠的一侧，所述侧面与所述堆叠的空气支承表面相对，其中所述偏置磁性层适于在垂直方向上向所述堆叠施加偏置磁场到所述空气轴承表面。第一和第二磁性层都具有bcc晶体结构，并且所述非磁性间隔层具有绝缘层或半导体层插入到金属层中的膜结构。

6. 发明申请

US20090207534A1 MAGNETO-RESISTANCE EFFECT ELEMENT INCLUDING STACK WITH DUAL FREE LAYER AND MAGNETIZED SHIELD ELECTRODE LAYERS 审中-公开
标题翻译：磁电阻效应元件，包括具有双层和磁性屏蔽电极层的堆叠
公开(公告)号：US20090207534A1
公开(公告)日：2009-08-20
申请号：US12033292
申请日：2008-02-19
申请人： Daisuke MIYAUCHI , Koji SHIMAZAWA , Tsutomu CHOU , Takahiko MACHITA
发明人： Daisuke MIYAUCHI , Koji SHIMAZAWA , Tsutomu CHOU , Takahiko MACHITA
IPC分类号： G11B5/39 , G11B5/012 , G01R33/09 , G11B5/00
CPC分类号： G01R33/093 , B82Y25/00 , G11B5/3912 , G11B5/3932 , G11B5/398 , H01F10/3263 , H01L43/08
摘要： A magneto-resistance effect element comprises; a magneto-resistance effect stack including an upper magnetic layer and a lower magnetic layer in which respective magnetization directions change in accordance with an external magnetic field, a non-magnetic intermediate layer sandwiched between the upper and lower magnetic layers, an upper gap adjustment layer and a lower gap adjustment layer provided at respective ends in the direction of stacking the magneto-resistance effect stack, an upper exchange coupling transmission layer configured to generate exchange coupling between the upper magnetic layer and the upper gap adjustment layer, and a lower exchange coupling transmission layer configured to generate exchange coupling between the lower magnetic layer and the lower gap adjustment layer; an upper shield electrode layer and a lower shield electrode layer which are provided to sandwich the magneto-resistance effect stack therebetween in the direction of stacking the magneto-resistance effect stack, wherein the upper shield electrode layer and the lower shield electrode layer supply sense current in the direction of stacking, and magnetically shield the magneto-resistance effect stack; and a bias magnetic layer which is provided on a surface of the magneto-resistance effect stack opposite to an air bearing surface, and wherein the bias magnetic layer applies a bias magnetic field to the upper and lower magnetic layers in a direction perpendicular to the air bearing surface, wherein the upper and lower shield electrode layers are each magnetized in a track width direction by a magnetization controller, and the upper and lower gap adjustment layers are composed of a material having a higher magnetic permeability and a lower saturation magnetic flux density than the upper and lower shield electrode layers respectively.
摘要翻译：磁阻效应元件包括：包括上磁化层和下磁性层的磁电阻效应堆，其中磁化方向各自根据外部磁场而变化，夹在上下磁层之间的非磁性中间层，上间隙调整层以及设置在层叠磁阻效应堆叠方向的各端的下间隙调整层，被配置为产生上磁性层和上间隙调整层之间的交换耦合的上交换耦合传输层，以及下交换耦合传输层，其被配置为在所述下磁性层和所述下间隙调整层之间产生交换耦合; 上屏蔽电极层和下屏蔽电极层，其被设置成在堆叠磁阻效应堆叠的方向上夹着磁阻效应堆叠，其中上屏蔽电极层和下屏蔽电极层提供感测电流在层叠方向上磁屏蔽磁阻效应堆; 以及设置在与空气轴承表面相对的磁阻效应堆的表面上的偏置磁性层，并且其中偏置磁性层在与空气垂直的方向上向上磁层和下磁层施加偏置磁场其中上下屏蔽电极层通过磁化控制器在磁道宽度方向上磁化，上下间隙调整层由具有较高磁导率和较低饱和磁通密度的材料构成，上，下屏蔽电极层。

7. 发明申请

US20090213502A1 MAGNETO-RESISTANCE EFFECT ELEMENT HAVING STACK WITH DUAL FREE LAYER AND A PLURALITY OF BIAS MAGNETIC LAYERS 审中-公开
标题翻译：具有双层自由层和多重偏磁层的磁阻效应元件
公开(公告)号：US20090213502A1
公开(公告)日：2009-08-27
申请号：US12036530
申请日：2008-02-25
申请人： Daisuke MIYAUCHI , Koji SHIMAZAWA , Tsutomu CHOU , Takahiko MACHITA, I
发明人： Daisuke MIYAUCHI , Koji SHIMAZAWA , Tsutomu CHOU , Takahiko MACHITA, I
IPC分类号： G11B5/33 , G11B5/84
CPC分类号： G11B5/398 , B82Y25/00 , G01R33/093 , G11B5/3932 , H01L43/08 , H01L43/12
摘要： A magneto-resistance effect element comprises: a magneto-resistance effect stack including an upper magnetic layer and a lower magnetic layer whose magnetization directions change in accordance with an external magnetic field, a non-magnetic intermediate layer sandwiched between the upper and lower magnetic layers; an upper shield electrode layer and a lower shield electrode layer which are provided to sandwich the magneto-resistance effect stack therebetween in the direction of stacking the magneto-resistance effect stack, wherein the upper shield electrode layer and the lower shield electrode layer supply sense current in the direction of stacking, and magnetically shield the magneto-resistance effect stack; a first bias magnetic layer which is provided on a surface of the magneto-resistance effect stack opposite to an air bearing surface, and wherein the first bias magnetic layer is magnetized in a direction perpendicular to said air bearing surface; and a pair of second bias magnetic layers provided on respective both sides of said magneto-resistance effect stack in a track width direction, and wherein the second bias magnetic layers are magnetized in a direction substantially parallel to said track width direction; wherein the magnetic pole on a surface of one of said second bias magnetic layers which faces said magneto-resistance effect stack has the same polarity as the magnetic pole on a surface of the other of said second bias magnetic layers which faces said magneto-resistance effect stack, and has a polarity different from the polarity of the magnetic pole on a surface of said first bias magnetic layer which faces said magneto-resistance effect stack.
摘要翻译：磁阻效应元件包括：磁阻效应堆，其包括磁化方向根据外部磁场而变化的上磁性层和下磁性层，夹在上磁层和下磁层之间的非磁性中间层 ; 上屏蔽电极层和下屏蔽电极层，其被设置成在堆叠磁阻效应堆叠的方向上夹着磁阻效应堆叠，其中上屏蔽电极层和下屏蔽电极层提供感测电流在层叠方向上磁屏蔽磁阻效应堆; 第一偏磁层，其设置在与空气轴承表面相对的磁阻效应堆的表面上，并且其中所述第一偏磁层在垂直于所述空气轴承表面的方向上被磁化; 以及一对第二偏置磁性层，其设置在所述磁阻效应叠层的磁道宽度方向的两侧，并且其中所述第二偏置磁性层沿与所述磁道宽度方向大致平行的方向被磁化; 其特征在于，面对所述磁阻效应叠层的所述第二偏置磁性层之一的表面上的磁极具有与所述第二偏置磁性层另一个面对所述磁阻效应的表面上的磁极相同的极性并且具有与面对所述磁阻效应堆叠的所述第一偏磁层的表面上的磁极的极性不同的极性。

8. 发明申请

US20120084969A1 METHOD OF MANUFACTURING THERMAL ASSISTED MAGNETIC WRITE HEAD 有权
标题翻译：制造热辅助磁头的方法
公开(公告)号：US20120084969A1
公开(公告)日：2012-04-12
申请号：US12902755
申请日：2010-10-12
申请人： Kosuke TANAKA , Shinji HARA , Tsutomu CHOU , Yasutoshi FUJITA
发明人： Kosuke TANAKA , Shinji HARA , Tsutomu CHOU , Yasutoshi FUJITA
IPC分类号： G11B5/127
CPC分类号： G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A method of manufacturing a thermally-assisted magnetic write head is provided. The method includes steps of: forming a laminate structure including the waveguide; the plasmon generator, and the magnetic pole in order; performing a first polishing process to planarize an end surface of the laminate structure; performing a first etching process to remove impurity attached on the end surface of the laminate structure, and to allow the plasmon generator to be recessed from the waveguide and the magnetic pole, thereby forming a recessed region on the end surface of the laminate structure; forming a protection layer on the end surface of the laminate structure such that at least the recessed region is filled; and performing a second polishing process on the end surface of the laminate structure formed with the protection layer until the plasmon generator is exposed, thereby completing the air bearing surface.
摘要翻译：提供一种制造热辅助写磁头的方法。该方法包括以下步骤：形成包括波导的层压结构; 等离子体发生器和磁极; 执行第一抛光工艺以使层压结构的端面平坦化; 执行第一蚀刻工艺以去除附着在层压结构的端面上的杂质，并允许等离子体激元发生器从波导和磁极凹陷，从而在层压结构的端面上形成凹陷区域; 在所述层压结构的端面上形成保护层，使得至少所述凹陷区域被填充; 并在形成有保护层的叠层结构的端面进行第二抛光处理，直到等离子体激元发生器露出为止，从而完成空气支承面。

9. 发明申请

US20110164479A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD COMPRISING WAVEGUIDE WITH INVERTED-TRAPEZOIDAL SHAPE 有权
标题翻译：带有倒角形状的包含波导的热辅助磁记录头
公开(公告)号：US20110164479A1
公开(公告)日：2011-07-07
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。

10. 发明申请

US20130258824A1 THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING TEMPERATURE SENSOR EMBEDDED ON DIELECTRIC WAVEGUIDE 有权
标题翻译：具有埋在电介质波导上的温度传感器的热辅助磁记录头
公开(公告)号：US20130258824A1
公开(公告)日：2013-10-03
申请号：US13432245
申请日：2012-03-28
申请人： Eiji KOMURA , Koji SHIMAZAWA , Tsutomu CHOU , Shinji HARA , Kosuke TANAKA , Ryo HOSOI
发明人： Eiji KOMURA , Koji SHIMAZAWA , Tsutomu CHOU , Shinji HARA , Kosuke TANAKA , Ryo HOSOI
IPC分类号： G11B13/04 , G11B19/20 , G11B21/24
CPC分类号： G11B5/314 , G11B5/607 , G11B2005/0021
摘要： A thermal assisted magnetic recording head includes a dielectric waveguide that is configured to propagate propagation light a metal waveguide that is provided facing the dielectric waveguide and that couples to the propagation light propagating through the dielectric waveguide in a surface plasmon mode, thereby generating and propagating surface plasmon, a near-field light generator that is exposed on an air bearing surface facing a magnetic recording medium either at an end part of the metal waveguide or at a position facing the end part of the metal waveguide, and that generates near-field light from the surface plasmon, a magnetic pole for magnetic recording that is exposed on the air bearing surface, and a temperature sensor that is arranged inside the dielectric waveguide.
摘要翻译：热辅助磁记录头包括电介质波导，其被配置为传播传播光，所述介质波导设置成面对介质波导并且以表面等离子体模式耦合到传播通过介质波导的传播光，从而产生和传播表面等离子体激元，近场光发生器，其在面向金属波导的端部的面向磁记录介质的空气轴承表面上或面对金属波导的端部的位置处暴露，并且产生近场光从表面等离子体激元，暴露在空气轴承表面上的用于磁记录的磁极，以及布置在电介质波导内部的温度传感器。

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