公开(公告)号：US20100103553A1

公开(公告)日：2010-04-29

申请号：US12260639

申请日：2008-10-29

申请人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B5/02 ,  G21G4/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/4866 ,  G11B2005/001 ,  G11B2005/0021

摘要： Provided is a surface plasmon antenna that can be set so that the emitting position on the end surface of the plasmon antenna where near-field light is emitted is located sufficiently close to the end of a magnetic pole. The surface plasmon antenna comprises an edge having a portion for coupling with a light in a surface plasmon mode. The edge is provided for propagating surface plasmon excited by the light and extends from the portion to a near-field light generating end surface that emits near-field light. The edge for propagating surface plasmon is a very narrow propagation region. Therefore, the near-field light generating end surface, which appears as a polished surface processed through polishing in the manufacturing of the plasmon antenna, can be made a shape with a very small size, and further can be set so that surface plasmon propagates to reach the end surface reliably.

摘要翻译： 提供了一种表面等离子体激元天线，其可以被设置为使得发射近场光的等离子体激元天线的端面上的发射位置足够靠近磁极的端部。 表面等离子体激元天线包括具有用于与表面等离子体激元模式的光耦合的部分的边缘。 该边缘用于传播由光激发的表面等离子体激元，并从该部分延伸到发射近场光的近场光产生端面。 传播表面等离子体激元的边缘是非常窄的传播区域。 因此，通过在等离子体激元天线的制造中通过研磨处理的抛光面的近场光产生端面可以形成为非常小的形状，并且还可以将表面等离子体激元传播到 可靠地到达端面。

公开(公告)号：US08000178B2

公开(公告)日：2011-08-16

申请号：US12260639

申请日：2008-10-29

申请人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G11B5/4866 ,  G11B2005/001 ,  G11B2005/0021

摘要： Provided is a surface plasmon antenna that can be set so that the emitting position on the end surface of the plasmon antenna where near-field light is emitted is located sufficiently close to the end of a magnetic pole. The surface plasmon antenna comprises an edge having a portion for coupling with a light in a surface plasmon mode. The edge is provided for propagating surface plasmon excited by the light and extends from the portion to a near-field light generating end surface that emits near-field light. The edge for propagating surface plasmon is a very narrow propagation region. Therefore, the near-field light generating end surface, which appears as a polished surface processed through polishing in the manufacturing of the plasmon antenna, can be made a shape with a very small size, and further can be set so that surface plasmon propagates to reach the end surface reliably.

摘要翻译： 提供了一种表面等离子体激元天线，其可以被设置为使得发射近场光的等离子体激元天线的端面上的发射位置足够靠近磁极的端部。 表面等离子体激元天线包括具有用于与表面等离子体激元模式的光耦合的部分的边缘。 该边缘用于传播由光激发的表面等离子体激元，并从该部分延伸到发射近场光的近场光产生端面。 传播表面等离子体激元的边缘是非常窄的传播区域。 因此，通过在等离子体激元天线的制造中通过研磨处理的抛光面的近场光产生端面可以形成为非常小的形状，并且还可以将表面等离子体激元传播到 可靠地到达端面。

公开(公告)号：US07855937B2

公开(公告)日：2010-12-21

申请号：US12205484

申请日：2008-09-05

申请人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Koji Shimazawa ,  Eiji Komura ,  Yasuhiro Ito ,  Seiichi Takayama ,  Satoshi Tomikawa ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/4866 ,  G11B11/10536 ,  G11B11/1058 ,  G11B2005/0005 ,  G11B2005/0021

摘要： Provided is a near-field light generating element capable of avoiding excessive temperature rise, which comprises a waveguide and a near-field light generating layer. The layer comprises: a propagation surface on which surface plasmon excited by the light propagates; and a near-field light generating end at which near-field light is generated. The end is one end of the propagation surface. And a portion of the side surface of the waveguide is opposed to a portion of the propagation surface of the near-field light generating layer with a predetermined spacing so that the light propagating through the waveguide is coupled with the near-field light generating layer in a surface plasmon mode. The near-field light generating layer is preferably tapered toward the near-field light generating end.

摘要翻译： 本发明提供能够避免温度过高的近场光发生元件，其包括波导管和近场光产生层。 该层包括：由光激发的表面等离子体激发的传播表面; 以及产生近场光的近场光产生端。 最后是传播表面的一端。 并且波导的侧面的一部分与近场光产生层的传播表面的一部分以预定的间隔相对，使得通过波导传播的光与近场光产生层耦合 表面等离子体激元模式。 近场光产生层优选地朝向近场光产生端逐渐变细。

公开(公告)号：US08116173B2

公开(公告)日：2012-02-14

申请号：US12458955

申请日：2009-07-28

申请人： Koji Shimazawa ,  Seiichi Takayama ,  Yasuhiro Ito ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Koji Shimazawa ,  Seiichi Takayama ,  Yasuhiro Ito ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B11/00

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 fixed to the slider. The slider has a waveguide and an overcoat layer that covers the waveguide. The laser diode has an emitting end face including an emission part for emitting laser light, and a bottom surface. The laser diode is arranged so that the bottom surface faces the top surface of the slider. The waveguide has an incident end face opposed to the emission part of the laser diode. The overcoat layer has an end face that faces the emitting end face of the laser diode. As viewed from above, the end face of the overcoat layer has a convex shape protruding toward the emitting end face of the laser diode so that a part of the end face of the overcoat layer lying over the incident end face of the waveguide comes closest to the emitting end face of the laser diode.

摘要翻译： 热辅助磁记录头包括滑块和固定到滑块的边缘发射激光二极管。 滑块具有覆盖波导的波导和外涂层。 激光二极管具有包括用于发射激光的发射部分和底面的发射端面。 激光二极管被布置成使得底表面面向滑块的顶表面。 波导具有与激光二极管的发射部分相对的入射端面。 外涂层具有面向激光二极管的发射端面的端面。 从上方观察，外涂层的端面具有向激光二极管的发射端面突出的凸形，使得位于波导的入射端面上的外涂层的端面的一部分最接近 激光二极管的发射端面。

公开(公告)号：US20110026379A1

公开(公告)日：2011-02-03

申请号：US12458955

申请日：2009-07-28

申请人： Koji Shimazawa ,  Seiichi Takayama ,  Yasuhiro Ito ,  Daisuke Miyauchi ,  Kosuke Tanaka

发明人： Koji Shimazawa ,  Seiichi Takayama ,  Yasuhiro Ito ,  Daisuke Miyauchi ,  Kosuke Tanaka

IPC分类号： G11B11/00

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 fixed to the slider. The slider has a waveguide and an overcoat layer that covers the waveguide. The laser diode has an emitting end face including an emission part for emitting laser light, and a bottom surface. The laser diode is arranged so that the bottom surface faces the top surface of the slider. The waveguide has an incident end face opposed to the emission part of the laser diode. The overcoat layer has an end face that faces the emitting end face of the laser diode. As viewed from above, the end face of the overcoat layer has a convex shape protruding toward the emitting end face of the laser diode so that a part of the end face of the overcoat layer lying over the incident end face of the waveguide comes closest to the emitting end face of the laser diode.

摘要翻译： 热辅助磁记录头包括滑块和固定到滑块的边缘发射激光二极管。 该滑块具有覆盖波导的波导和外涂层。 激光二极管具有包括用于发射激光的发射部分和底面的发射端面。 激光二极管被布置成使得底表面面向滑块的顶表面。 波导具有与激光二极管的发射部分相对的入射端面。 外涂层具有面向激光二极管的发射端面的端面。 从上方观察，外涂层的端面具有向激光二极管的发射端面突出的凸形，使得位于波导的入射端面上的外涂层的端面的一部分最接近 激光二极管的发射端面。

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：US08248897B2

公开(公告)日：2012-08-21

申请号：US12899101

申请日：2010-10-06

申请人： Koji Shimazawa ,  Yoshihiro Tsuchiya ,  Seiichi Takayama ,  Nobuyuki Mori ,  Yasuhiro Ito ,  Kosuke Tanaka ,  Osamu Shindo ,  Ryuji Fujii ,  Takashi Honda ,  Yoshitaka Sasaki

发明人： Koji Shimazawa ,  Yoshihiro Tsuchiya ,  Seiichi Takayama ,  Nobuyuki Mori ,  Yasuhiro Ito ,  Kosuke Tanaka ,  Osamu Shindo ,  Ryuji Fujii ,  Takashi Honda ,  Yoshitaka Sasaki

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A method for manufacturing a thermally-assisted magnetic recording head is provided, in which a light source unit including a light source and a slider including an optical system are bonded. A unit substrate is made of a material transmitting light having a predetermined wavelength, and a unit adhesion material layer that contains Sn, Sn alloy, Pb alloy or Bi alloy is formed on the light source unit and/or the slider. The manufacturing method includes: aligning the light source unit and the slider in such a way that a light from the light source can enter the optical system and the unit adhesion material layer is sandwiched therebetween; and causing a light including the predetermined wavelength to enter the unit substrate to melt the unit adhesion material layer. The unit adhesion material layer melted by the light including the predetermined wavelength can ensure high alignment accuracy as well as higher bonding strength and less change with time.

摘要翻译： 提供了一种用于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被结合。 单位基板由透射具有预定波长的光的材料制成，并且在光源单元和/或滑块上形成包含Sn，Sn合金，Pb合金或Bi合金的单位粘附材料层。 该制造方法包括：使光源单元和滑块对准，使得来自光源的光能够进入光学系统，并且单元粘合材料层夹在其间; 并使包含所述预定波长的光进入所述单元基板以熔化所述单元粘合材料层。 由包含预定波长的光熔化的单元粘合材料层可以确保高对准精度以及更高的粘合强度和较小的随时间的变化。

公开(公告)号：US08149653B2

公开(公告)日：2012-04-03

申请号：US12728510

申请日：2010-03-22

申请人： Koji Shimazawa ,  Yoshihiro Tsuchiya ,  Seiichi Takayama ,  Nobuyuki Mori ,  Yasuhiro Ito ,  Kosuke Tanaka ,  Osamu Shindo ,  Ryuji Fujii ,  Takashi Honda ,  Yoshitaka Sasaki

发明人： Koji Shimazawa ,  Yoshihiro Tsuchiya ,  Seiichi Takayama ,  Nobuyuki Mori ,  Yasuhiro Ito ,  Kosuke Tanaka ,  Osamu Shindo ,  Ryuji Fujii ,  Takashi Honda ,  Yoshitaka Sasaki

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/105 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T156/1052

摘要： Provided is a light source unit that is to be joined to a slider to form a thermally-assisted magnetic recording head. The light source unit comprises: a unit substrate having a source-installation surface; a light source provided in the source-installation surface and emitting thermal-assist light; and a photodetector bonded to a rear joining surface of the unit substrate in such a manner that a rear light-emission center of the light source is covered with a light-receiving surface of the photodetector. The photodetector can be sufficiently close to the light source; thus, constant feedback adjustment with high efficiency for the light output of the light source can be performed. This adjustment enables light output from the light source to be controlled in response to changes in light output due to surroundings and to changes with time to stabilize the intensity of light with which a magnetic recording medium is irradiated.

摘要翻译： 提供一种光源单元，其被连接到滑块以形成热辅助磁记录头。 光源单元包括：具有源安装表面的单元基板; 光源，设置在源安装表面中并发射热辅助光; 以及光电检测器，其以使得光源的后发光中心被光电检测器的光接收表面覆盖的方式结合到单元基板的后接合表面。 光电检测器可以足够靠近光源; 因此，可以执行用于光源的光输出的高效率的恒定反馈调整。 该调整使得能够响应于由于周围环境导致的光输出的变化而控制来自光源的光输出，并且随着时间的变化来稳定照射磁记录介质的光的强度。

公开(公告)号：US08243388B2

公开(公告)日：2012-08-14

申请号：US12107216

申请日：2008-04-22

申请人： Koji Shimazawa ,  Yasuhiro Ito ,  Eiji Komura ,  Seiichi Takayama ,  Kosuke Tanaka

发明人： Koji Shimazawa ,  Yasuhiro Ito ,  Eiji Komura ,  Seiichi Takayama ,  Kosuke Tanaka

IPC分类号： G11B5/127 ,  G11B11/00

CPC分类号： G11B5/314 ,  G11B5/102 ,  G11B2005/0005 ,  G11B2005/0021

摘要： Provided is a heat-assisted magnetic recording head constituted of a light source unit and a slider, which can be easily joined to each other with sufficiently high accuracy of joining position. The slider comprises a head part including a waveguide having an incident center on its end. The surface including an emission center of the light source is protruded from a joining surface of the unit substrate. And a step is provided on an end surface of the head part. The protruded portion of a lower surface of the light source has a surface contact with a wall surface of the step. Further, the distance between the wall surface of the step and the incident center of the waveguide is set to be equal to the distance between the emission center of the light source and the protruded portion of the lower surface of the light source.

摘要翻译： 提供一种由光源单元和滑块构成的热辅助磁记录头，其可以以足够高的接合位置精度彼此容易地接合。 滑块包括头部，其包括在其端部具有入射中心的波导。 包括光源的发射中心的表面从单元基板的接合表面突出。 并且在头部的端面上设置有台阶。 光源的下表面的突出部分与台阶的壁面具有表面接触。 此外，台阶壁面与波导入射中心之间的距离被设定为等于光源的发射中心与光源的下表面的突出部分之间的距离。

公开(公告)号：US08065786B2

公开(公告)日：2011-11-29

申请号：US12108234

申请日：2008-04-23

申请人： Koji Shimazawa ,  Yasuhiro Ito ,  Eiji Komura ,  Seiichi Takayama ,  Kosuke Tanaka

发明人： Koji Shimazawa ,  Yasuhiro Ito ,  Eiji Komura ,  Seiichi Takayama ,  Kosuke Tanaka

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/314 ,  G11B5/102 ,  G11B5/3163 ,  G11B2005/0005 ,  G11B2005/0021 ,  Y10T29/49025 ,  Y10T29/49041 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49052 ,  Y10T156/1062

摘要： Provided is a manufacturing method of heat-assisted magnetic recording head, in which a light source unit can be easily joined to a slider with sufficiently high accuracy, under avoiding the excessive mechanical stress. The manufacturing method comprises the steps of: moving relatively the light source unit and the slider, while applying a sufficient voltage between an upper electrode of the light source and an electrode layer provided in the slider; and setting the light source unit and the slider in desired positions in a direction perpendicular to the element-integration surface of the slider substrate. The desired positions are positions where the light source just emits due to a surface contact between: the protruded portion of the lower surface of the light source; and the upper surface of the electrode layer, which is a portion of the wall surface of a step formed on the head part.

摘要翻译： 提供一种热辅助磁记录头的制造方法，其中光源单元可以以足够高的精度容易地接合到滑块，以避免过度的机械应力。 该制造方法包括以下步骤：在光源的上电极和设置在滑块中的电极层之间施加足够的电压，相对移动光源单元和滑块; 以及将光源单元和滑块设置在与滑动器基板的元件集成表面垂直的方向上的期望位置。 期望的位置是由于光源的下表面的突出部分之间的表面接触而光源刚刚发射的位置; 以及作为形成在头部上的台阶的壁面的一部分的电极层的上表面。