公开(公告)号：US20130250742A1

公开(公告)日：2013-09-26

申请号：US13426142

申请日：2012-03-21

申请人： Eiji KOMURA ,  Tsutomu CHOU ,  Koji SHIMAZAWA ,  Shinji HARA ,  Ryo HOSOI ,  Nobuyuki MORI ,  Yasutoshi FUJITA ,  Hideki TANZAWA

发明人： Eiji KOMURA ,  Tsutomu CHOU ,  Koji SHIMAZAWA ,  Shinji HARA ,  Ryo HOSOI ,  Nobuyuki MORI ,  Yasutoshi FUJITA ,  Hideki TANZAWA

IPC分类号： G11B13/04 ,  G02B6/26 ,  G11B21/24

CPC分类号： G11B5/3116 ,  G02B6/4208 ,  G11B5/105 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： The thermally-assisted magnetic recording head includes: a laser light source having an emission surface, the emission surface allowing laser light to be emitted therefrom; a waveguide having a core and a cladding, the core allowing the laser light emitted from the laser light source to propagate therethrough, and the cladding surrounding the core; a magnetic pole; and a plasmon generator. Each of the core and the cladding has an end surface facing the emission surface, and the end surface of the cladding suppresses returning of the laser light to the laser light source.

摘要翻译： 热辅助磁记录头包括：具有发射表面的激光光源，所述发射表面允许从其发射激光; 具有芯和包层的波导，所述芯允许从激光源发射的激光传播通过其中;以及围绕芯的包层; 磁极 和等离子体发生器。 芯和包层中的每一个具有面向发射表面的端表面，并且包层的端表面抑制激光返回到激光光源。

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。

公开(公告)号：US20130139378A1

公开(公告)日：2013-06-06

申请号：US13309019

申请日：2011-12-01

申请人： Shinji HARA ,  Koji SHIMAZAWA ,  Seiichi TAKAYAMA ,  Yasuhiro ITO ,  Nobuyuki MORI ,  Ryo HOSOI ,  Kazuaki TAKANUKI ,  Youichi ANDO ,  Chimoto SUGIYAMA

发明人： Shinji HARA ,  Koji SHIMAZAWA ,  Seiichi TAKAYAMA ,  Yasuhiro ITO ,  Nobuyuki MORI ,  Ryo HOSOI ,  Kazuaki TAKANUKI ,  Youichi ANDO ,  Chimoto SUGIYAMA

IPC分类号： G11B5/127 ,  B23P19/00

CPC分类号： G11B5/314 ,  G11B5/105 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49032 ,  Y10T29/53165

摘要： A method of manufacturing a thermally-assisted magnetic recording head includes: providing a light source unit including a light source; providing a substrate having a thermally-assisted magnetic recording head section thereon, the thermally-assisted magnetic recording head section including a magnetic pole, a plasmon generator, and an optical waveguide; inserting a metal between the light source unit and the substrate, and thus allowing the metal to be melted; and performing alignment between the light source unit and the thermally-assisted magnetic recording head section under application of pressure in a direction that allows the light source unit and the substrate to approach each other, while maintaining the metal melted.

摘要翻译： 一种制造热辅助磁记录头的方法，包括：提供包括光源的光源单元; 提供其上具有热辅助磁记录头部分的基板，所述热辅助磁记录头部分包括磁极，等离子体激元发生器和光波导; 在光源单元和基板之间插入金属，从而允许金属熔化; 并且在保持金属熔化的同时，在施加压力的同时使光源单元和基板彼此靠近的方向在光源单元和热辅助磁记录头部之间进行对准。

公开(公告)号：US20120117791A1

公开(公告)日：2012-05-17

申请号：US12947091

申请日：2010-11-16

申请人： Shinji HARA ,  Koji Shimazawa ,  Eiji Komura ,  Tsutomu Chou ,  Seiichi Takayama

发明人： Shinji HARA ,  Koji Shimazawa ,  Eiji Komura ,  Tsutomu Chou ,  Seiichi Takayama

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  G02B6/4202 ,  G11B5/105 ,  G11B5/3116 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49032 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： In a method for manufacturing a thermally-assisted magnetic head that includes a slider and an LD unit, the slider including an air bearing surface (ABS) that faces a recording medium and including a waveguide with a core for light propagation that extends from a light entering surface, which is different from the ABS, to the ABS, the LD unit being attached to the light entering surface of the slider, and the thermally-assisted magnetic head performing magnetic recording while heating the recording medium with near-field light that is excited from linearly polarized laser light, the LD unit is disposed in a position facing the light entering surface of the slider, a photo detector is disposed in a position facing the ABS of the slider, and a polarizer transmitting only light having a polarization component that is orthogonal to a polarization direction of the linearly polarized laser light is disposed between the ABS and the photo detector. An LD of the LD unit is activated, and the linearly polarized laser light is enabled to enter into the core from the light entering surface of the slider. Light radiated from the ABS is enabled to enter into the polarizer, and an alignment of the slider and the LD unit is performed while the photo detector detects light that is transmitted through the polarizer.

摘要翻译： 在制造包括滑块和LD单元的热辅助磁头的方法中，滑块包括面向记录介质的空气轴承表面（ABS），该空气轴承表面包括具有从光线延伸的光传播用核心的波导 进入与ABS不同的表面，将LD单元附着到滑块的光进入表面，并且热辅助磁头在用近场光加热记录介质的同时进行磁记录 从线偏振激光激发，LD单元被设置在面向滑块的光进入表面的位置，光电检测器设置在面向滑块的ABS的位置，偏振器仅透射具有偏振分量的光， 与线偏振激光的偏振方向垂直的方式设置在ABS和光电检测器之间。 LD单元的LD被激活，并且线偏振激光能够从滑块的光进入表面进入芯中。 从ABS辐射的光能够进入偏振器，并且当光电检测器检测到透射通过偏振器的光时，执行滑块和LD单元的对准。

公开(公告)号：US20130219698A1

公开(公告)日：2013-08-29

申请号：US13404704

申请日：2012-02-24

申请人： Shinji HARA ,  Koji SHIMAZAWA ,  Ryo HOSOI

发明人： Shinji HARA ,  Koji SHIMAZAWA ,  Ryo HOSOI

IPC分类号： G11B5/127

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

摘要： A method of manufacturing a thermally-assisted magnetic recording head includes: providing a bar and a plurality of light source units, the bar including a plurality of thermally-assisted magnetic recording head sections arranged in a first direction, and each of the light source units including a substrate and a light source; and bonding a second surface of the substrate to the bar with an adhesive layer in between, where the plurality of light source units are so aligned to the respective thermally-assisted magnetic recording head sections on the bar, as to allow a first surface of the substrate, which supports the light source, to be parallel to the first direction, the bonding allowing the substrates of the light source units to be irradiated with a first laser beam and allowing the bar to be irradiated with a second laser beam, to thereby allow the adhesive layer to be melted.

摘要翻译： 一种制造热辅助磁记录头的方法包括：提供条和多个光源单元，所述条包括沿第一方向布置的多个热辅助磁记录头部分，并且每个光源单元 包括基底和光源; 以及将所述基板的第二表面与所述条之间的粘合剂层粘合到所述条上，其中所述多个光源单元与所述条上的相应的热辅助磁记录头部分对齐，以允许所述第一表面 支撑光源的基板平行于第一方向，使得能够用第一激光束照射光源单元的基板并且允许用第二激光束照射条的接合，从而允许 要熔化的粘合剂层。

公开(公告)号：US20090061258A1

公开(公告)日：2009-03-05

申请号：US11847521

申请日：2007-08-30

申请人： Tomohito MIZUNO ,  Yoshihiro TSUCHIYA ,  Shinji HARA ,  Koji SHIMAZAWA ,  Tsutomu CHOU

发明人： Tomohito MIZUNO ,  Yoshihiro TSUCHIYA ,  Shinji HARA ,  Koji SHIMAZAWA ,  Tsutomu CHOU

IPC分类号： G11B5/39

CPC分类号： B82Y25/00 ,  G01R33/093 ,  G11B5/3932 ,  Y10T428/1129

摘要： A magnetic field detecting element comprises: a stack which includes first, second and third magnetic layers whose magnetization directions change in accordance with an external magnetic field, a first non-magnetic intermediate layer which is sandwiched between the first magnetic layer and the second magnetic layer, the first non-magnetic intermediate layer producing a magnetoresistance effect between the first magnetic layer and the second magnetic layer, and a second non-magnetic intermediate layer which is sandwiched between the second magnetic layer and the third magnetic layer, the second non-magnetic intermediate layer allowing the second magnetic layer and the third magnetic layer to be exchange-coupled such that magnetization directions thereof are anti-parallel to each other under no magnetic field, the stack being adapted such that sense current flows in a direction that is perpendicular to a film surface thereof; and a bias magnetic layer which is provided on a side of the stack, the side being opposite to an air bearing surface of the stack, the bias magnetic layer applying a bias magnetic field to the stack in a direction that is perpendicular to the air bearing surface.

摘要翻译： 磁场检测元件包括：堆叠，其包括其磁化方向根据外部磁场而变化的第一，第二和第三磁性层，夹在第一磁性层和第二磁性层之间的第一非磁性中间层 在第一磁性层和第二磁性层之间产生磁阻效应的第一非磁性中间层和夹在第二磁性层和第三磁性层之间的第二非磁性中间层，第二非磁性中间层 中间层，允许第二磁性层和第三磁性层交换耦合，使得其磁化方向在没有磁场的情况下彼此反平行，所述堆叠适于使得感测电流沿垂直于 其膜表面; 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，所述偏置磁性层沿垂直于所述空气轴承的方向向所述堆叠施加偏置磁场 表面。

公开(公告)号：US20120090162A1

公开(公告)日：2012-04-19

申请号：US12904553

申请日：2010-10-14

申请人： Koji SHIMAZAWA ,  Seiichi TAKAYAMA ,  Nobuyuki MORI ,  Yoshihiro TSUCHIYA ,  Shinji HARA

发明人： Koji SHIMAZAWA ,  Seiichi TAKAYAMA ,  Nobuyuki MORI ,  Yoshihiro TSUCHIYA ,  Shinji HARA

IPC分类号： G11B5/127

CPC分类号： G11B5/314 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/1278 ,  G11B5/3967 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021 ,  G11B2005/3996 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/5313 ,  Y10T29/53191

摘要： Provided is a method for manufacturing a thermally-assisted magnetic recording head including a light source unit with a light source and a slider with an optical system. The method comprises steps of: adhering by suction the light source unit with a back holding jig; moving the back holding jig, then aligning a light-emission center of the light source with a light-receiving end surface of the optical system in directions within a slider back surface of the slider; bringing the light source unit into contact with the slider back surface, with a suction surface of the back holding jig tilted from the normal to the slider back surface; applying a load to a load application surface of the unit substrate by a loading means to bring a joining surface of the light source unit into conformity with the slider back surface; and bonding the light source unit and the slider. This method can improve the conformity, thereby achieving adequately strong junction and adequately high accuracy in position.

摘要翻译： 提供一种制造包括具有光源的光源单元和具有光学系统的滑块的热辅助磁记录头的方法。 该方法包括以下步骤：用后保持夹具吸附光源单元; 移动后保持夹具，然后将光源的发光中心与光学系统的光接收端面沿滑块的滑块后表面内的方向对准; 使光源单元与滑块后表面接触，后保持夹具的吸力表面从滑块后表面的法线倾斜; 通过加载装置将负载施加到单元基板的负载施加表面，以使光源单元的接合表面与滑块背面一致; 并且接合光源单元和滑块。 该方法可以改善一致性，从而实现足够强的接合和足够高的位置精度。

公开(公告)号：US20120073120A1

公开(公告)日：2012-03-29

申请号：US12888916

申请日：2010-09-23

申请人： Koji SHIMAZAWA ,  Seiichi TAKAYAMA ,  Nobuyuki MORI ,  Yoshihiro TSUCHIYA ,  Shinji HARA

发明人： Koji SHIMAZAWA ,  Seiichi TAKAYAMA ,  Nobuyuki MORI ,  Yoshihiro TSUCHIYA ,  Shinji HARA

IPC分类号： G11B5/127 ,  G11B7/22

CPC分类号： G11B5/105 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49032 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/53165 ,  Y10T29/53265 ,  Y10T428/1143 ,  Y10T428/1171 ,  Y10T428/1193

摘要： Provided is a method for manufacturing a thermally-assisted magnetic recording head in which a light source unit including a light source and a slider including an optical system are joined. The method comprises steps of: adhering by suction the light source unit with a back holding jig; bringing the light source unit into contact with a slider back surface of the slider; applying a load to a load application surface of the light source unit by a loading means to bring a joining surface of the light source unit into conformity with the slider back surface; positioning the light source unit apart from the slider, and then aligning the light source with the optical system; bringing again the light source unit into contact with the slider; and applying a load again to the load application surface to bring the joining surface into conformity with the slider back surface. Thus, the conformity between them can be significantly increased, thereby achieving adequately strong junction and adequately high accuracy in position.

摘要翻译： 提供一种制造热辅助磁记录头的方法，其中包括光源和包括光学系统的滑块的光源单元接合。 该方法包括以下步骤：用后保持夹具吸附光源单元; 使光源单元与滑块的滑块后表面接触; 通过加载装置将负载施加到光源单元的负载施加表面，以使光源单元的接合表面与滑块背面一致; 将光源单元与滑块分开，然后将光源与光学系统对准; 使光源单元再次与滑块接触; 并且将负载再次施加到负载施加表面以使接合表面与滑块后表面一致。 因此，它们之间的一致性可以显着增加，从而实现足够强的接合和足够高的位置精度。

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。

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。