公开(公告)号：US09478241B1

公开(公告)日：2016-10-25

申请号：US15019428

申请日：2016-02-09

申请人： Shigeki Tanemura ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Xuhui Jin ,  Hideo Mamiya ,  Yukinori Ikegawa

发明人： Shigeki Tanemura ,  Yoshitaka Sasaki ,  Hiroyuki Ito ,  Xuhui Jin ,  Hideo Mamiya ,  Yukinori Ikegawa

IPC分类号： G11B11/00 ,  G11B5/48 ,  G11B5/31 ,  G11B5/60 ,  G11B5/00 ,  G11B11/105

CPC分类号： G11B5/6088 ,  G11B5/314 ,  G11B11/10543 ,  G11B11/10554 ,  G11B11/1058 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes a main pole, a waveguide, and a plasmon generator. The waveguide includes a core and a cladding. The main pole and the core are located on the same side in the direction of travel of a recording medium relative to the plasmon generator. The main pole has a first end face located in the medium facing surface, and a second end face opposite to the first end face. The core has a front end face opposed to the second end face of the main pole. The cladding includes an interposition section interposed between the front end face of the core and the second end face of the main pole. The front end face of the core and the second end face of the main pole are inclined with respect to the medium facing surface.

摘要翻译： 热辅助磁记录头包括主极，波导和等离子体发生器。 波导包括芯和包层。 主磁极和磁芯位于记录介质相对于等离子体发生器的行进方向的同一侧。 主极具有位于介质面对表面中的第一端面和与第一端面相对的第二端面。 芯具有与主极的第二端面相对的前端面。 包层包括插入在芯的前端面和主极的第二端面之间的插入部分。 芯的前端面和主极的第二端面相对于介质面向表面倾斜。

公开(公告)号：US08488419B1

公开(公告)日：2013-07-16

申请号：US13548301

申请日：2012-07-13

申请人： Xuhui Jin ,  Yoshitaka Sasaki ,  Hiroyuki Ito

发明人： Xuhui Jin ,  Yoshitaka Sasaki ,  Hiroyuki Ito

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/3133 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A TAMR head is disclosed with a hybrid plasmon generator (hPG) formed between a waveguide and write pole at an ABS. The hPG has a planar bottom surface facing the waveguide and is comprised of a first non-noble metal layer with a peg portion adjoining the ABS. The peg tip has a thickness in a down track direction and a width in a cross track direction that may be reduced to about 10 nm to shrink the size of the optical spot that provides localized heating to a track and facilitates the write process. A second metal layer made of a noble metal is formed on and alongside the first metal layer and is recessed from the ABS to expose the peg, and has a top surface adjoining the write pole that may have side and top heat sinks.

摘要翻译： 公开了一种在ABS处形成在波导和写极之间的混合等离子体激元发生器（hPG）的TAMR头。 hPG具有面向波导的平面底表面，并且包括具有邻接ABS的钉部分的第一非贵金属层。 钉尖具有向下轨道方向的厚度和横向方向上的宽度，其可以减小到约10nm，以将向局部加热提供给轨道的光点的尺寸收缩并且便于写入过程。 由贵金属制成的第二金属层形成在第一金属层上并且与第一金属层一起并且从ABS凹入以露出钉，并且具有与可能具有侧面和顶部散热器的写入极相邻的顶表面。

公开(公告)号：US09372241B2

公开(公告)日：2016-06-21

申请号：US12590364

申请日：2009-11-06

申请人： Yuchen Zhou ,  Xuhui Jin ,  Grace Gorman

发明人： Yuchen Zhou ,  Xuhui Jin ,  Grace Gorman

IPC分类号： B05D3/06 ,  G01R33/09 ,  B82Y25/00 ,  B82Y40/00 ,  H01F41/30 ,  G11B5/31 ,  G11B5/39 ,  H01F10/32

CPC分类号： G01R33/093 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/3163 ,  G11B5/3903 ,  H01F10/3254 ,  H01F10/3268 ,  H01F41/304

摘要： A method by which portions of a wafer level fabrication can be selectively heated by forming plasmon generating layers of specific size, shape, orientation and material on the fabrication and then illuminating the formation with electromagnetic radiation of such wavelength and polarization as will optimally be absorbed by the plasmon generating layers so as to generate plasmons therein. The generated plasmons thereupon produce thermal energy which is transferred to portions of the fabrication with which the plasmon generation layer has thermal contact. This method is particularly advantageous for producing multiple anneals and different magnetic pinning directions for the anti-ferromagnetic pinning layer in each of an array of GMR or TMR devices. In that process, the anti-ferromagnetic layer must be raised above its Curie temperature at which point it loses its anti-ferromagnetic properties and can have a magnetization imposed by application of an external magnetic field. The method can equally well be applied to any wafer level fabrication or deposited film fabrication in which it is desired to heat specific regions to obtain some specified result that is temperature dependent.

摘要翻译： 可以通过在制造上形成特定尺寸，形状，取向和材料的等离子体激元产生层来选择性地加热晶片级制造的部分的方法，然后用最佳被最佳吸收的波长和极化的电磁辐射照射地层 等离子体发生层，以便在其中产生等离子体激元。 所产生的等离子体激元产生热能，其转移到等离子体发生层具有热接触的制造部分。 该方法对于在GMR或TMR器件阵列中的每个中的反铁磁钉扎层产生多个退火和不同的磁性钉扎方向特别有利。 在该过程中，反铁磁层必须升高到高于其居里温度，此时其失去其抗铁磁特性，并且可以通过施加外部磁场而施加磁化强度。 该方法同样可以应用于任何晶片级制造或沉积膜制造，其中期望加热特定区域以获得温度依赖性的一些指定结果。

公开(公告)号：US08743497B2

公开(公告)日：2014-06-03

申请号：US13608554

申请日：2012-09-10

申请人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

发明人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

IPC分类号： G11B5/02

CPC分类号： G11B5/314 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material.

摘要翻译： 一种设备包括：记录介质，包括基板，多个基板上的磁性材料轨迹，以及轨道之间的非磁性材料; 记录头，其具有邻近记录介质定位的空气轴承表面，并且包括磁极，光学换能器和近场换能器，其中近场换能器将电磁辐射引导到轨道上以加热轨道的部分， 来自磁极的磁场用于在轨道的加热部分中产生磁转变; 以及与磁性材料相邻定位的等离子体元件，以增加电磁辐射与磁性材料之间的耦合。

公开(公告)号：US08385159B2

公开(公告)日：2013-02-26

申请号：US12785003

申请日：2010-05-21

申请人： Kaizhong Gao ,  Yongjun Zhao ,  William A. Challener ,  Xuhui Jin

发明人： Kaizhong Gao ,  Yongjun Zhao ,  William A. Challener ,  Xuhui Jin

IPC分类号： G11B11/00

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

摘要： A magnetic recording head consists of a write pole and a near field transducer close to the write pole that focuses light energy to a focal point. A near field transducer is positioned to receive light energy from a waveguide. The near field transducer comprises an energy-receiving end and an energy-radiating end. The energy-receiving end is located near the focal point of the waveguide and the energy-radiating end is shaped such that it is narrower closer to the write pole and wider farther from the write pole.

摘要翻译： 磁记录头由靠近写入极的写极和近场传感器组成，将光能聚焦到焦点。 定位近场传感器以从波导接收光能。 近场换能器包括能量接收端和能量辐射端。 能量接收端位于波导的焦点附近，并且能量辐射端被成形为使得其更靠近写入极并且比写入极更远。

公开(公告)号：US20130003511A1

公开(公告)日：2013-01-03

申请号：US13608554

申请日：2012-09-10

申请人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

发明人： Kaizhong Gao ,  Michael Allen Seigler ,  Xuhui Jin ,  Ganping Ju ,  Bin Lu

IPC分类号： G11B13/04

CPC分类号： G11B5/314 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus includes a recording media including a substrate, a plurality of tracks of magnetic material on the substrate, and a non-magnetic material between the tracks; a recording head having an air bearing surface positioned adjacent to the recording media, and including a magnetic pole, an optical transducer, and a near-field transducer, wherein the near-field transducer directs electromagnetic radiation onto tracks to heat portions of the tracks and a magnetic field from the magnetic pole is used to create magnetic transitions in the heated portions of the tracks; and a plasmonic material positioned adjacent to the magnetic material to increase coupling between the electromagnetic radiation and the magnetic material.

摘要翻译： 一种设备包括：记录介质，包括基板，多个基板上的磁性材料轨迹，以及轨道之间的非磁性材料; 记录头，其具有邻近记录介质定位的空气轴承表面，并且包括磁极，光学换能器和近场换能器，其中近场换能器将电磁辐射引导到轨道上以加热轨道的部分， 来自磁极的磁场用于在轨道的加热部分中产生磁转变; 以及与磁性材料相邻定位的等离子体元件，以增加电磁辐射与磁性材料之间的耦合。

公开(公告)号：US08238202B2

公开(公告)日：2012-08-07

申请号：US12928678

申请日：2010-12-16

申请人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchen Zhou ,  Kenichi Takano ,  Joe Smyth

发明人： Erhard Schreck ,  Tobias Maletzky ,  Xuhui Jin ,  Yuchen Zhou ,  Kenichi Takano ,  Joe Smyth

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  B82Y20/00 ,  G02B6/1226 ,  G02B6/125 ,  G02B6/2821 ,  G11B5/3189 ,  G11B2005/001 ,  G11B2005/0021

摘要： A waveguide structure for a TAMR head is disclosed wherein at least one detection waveguide is formed parallel to a main waveguide and located a gap distance therefrom. A light source transmits light into the main waveguide and towards an ABS/medium interface. A plasmon generator converts light from the waveguide into plasmon waves that are directed onto a magnetic medium. Back reflected light is captured by the main waveguide, partially diverted into a detection waveguide, and transmitted to a photo detector that measures light intensity (IB) which correlates closely to the plasmon wave intensity at the ABS/medium interface. A controller linked to the photo detector is employed to calculate IB as a function of ABS/medium spacing in a non-write condition and this relationship can be used to control and maintain a constant plasmon wave intensity at the ABS during a series of TAMR write processes with a plurality of media.

摘要翻译： 公开了一种用于TAMR头的波导结构，其中至少一个检测波导与主波导平行地形成并且与其间的间隙距离。 光源将光传输到主波导并朝向ABS /介质接口。 等离子体激元发生器将来自波导的光转换成被引导到磁介质上的等离子体波。 后反射光被主波导捕获，部分转移到检测波导中，并传输到光检测器，该光检测器测量与ABS /介质界面处的等离子体波强度密切相关的光强度（IB）。 在非写入条件下，使用与光电检测器相关联的控制器来计算IB作为ABS /介质间隔的函数，并且该关系可用于在一系列TAMR写入期间控制和维持ABS处的恒定等离子体波强度 具有多个媒体的过程。

公开(公告)号：US20110292537A1

公开(公告)日：2011-12-01

申请号：US12802082

申请日：2010-05-28

申请人： Xuhui Jin ,  Joe Smyth ,  Moris Dovek

发明人： Xuhui Jin ,  Joe Smyth ,  Moris Dovek

IPC分类号： G11B5/02

CPC分类号： G11B5/1278 ,  G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

摘要： A device for implementing thermally assisted magnetic recording, using a TE mode laser diode, and method for using it, are described. This device is shaped internally so as to provide three-dimensional self-focusing of plasmon radiation, thereby improving the coupling efficiency between the optical wave-guide and the plasmon generator as a result of ensuring a large overlap between these two modes.

摘要翻译： 描述了使用TE模式激光二极管实现热辅助磁记录的装置及其使用方法。 该装置在内部成形，以提供等离子体激元辐射的三维自聚焦，从而通过确保这两种模式之间的大的重叠而提高光波导和等离子体发生器之间的耦合效率。

公开(公告)号：US08036069B1

公开(公告)日：2011-10-11

申请号：US12802096

申请日：2010-05-28

申请人： Xuhui Jin ,  Yuchen Zhou ,  Joe Smyth ,  Tobias Maletzky ,  Kenichi Takano ,  Erhard Schreck

发明人： Xuhui Jin ,  Yuchen Zhou ,  Joe Smyth ,  Tobias Maletzky ,  Kenichi Takano ,  Erhard Schreck

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G02B6/107 ,  G11B2005/0021

摘要： A TAMR head is disclosed with a triangular shaped plasmon antenna covered on two sides with a plasmon layer that generates an edge plasmon mode along a vertex of the two plasmon sides formed opposite a main pole layer. A plasmon shield (PS) is formed along the ABS and opposite the vertex to confine an electric field from the edge plasmon mode within a small radius of the edge plasmon tip thereby reducing the optical spot size on the magnetic medium and enhancing writability. An end of a waveguide used to direct input electromagnetic radiation to the plasmon antenna adjoins a PS side opposite the ABS. In one embodiment, a magnetic shield may be formed along the ABS and adjoins the PS so that a first PS section terminates at the ABS and faces the vertex while a second PS section is formed between the magnetic shield and waveguide end.

摘要翻译： 公开了具有三面形等离子体激元的三角形等离子体激元天线，该三角形等离子体激元天线用等离子体膜覆盖，该等离子体膜沿着与主极层相对的两个等离子体激元侧的顶点产生边缘等离子体模式。 等离子体屏蔽（PS）沿着ABS形成并与顶点相对，以将边缘等离子体激元模式的电场限制在边缘等离子体激元尖端的小半径内，从而减小磁介质上的光点尺寸并提高可写性。 用于将输入电磁辐射引导到等离子体激元天线的波导的一端与ABS相对的PS侧相邻。 在一个实施例中，可以沿着ABS形成磁屏蔽并与PS邻接，使得第一PS部分在ABS处终止并面向顶点，而在磁屏蔽和波导端之间形成第二PS部分。

公开(公告)号：US20110211428A1

公开(公告)日：2011-09-01

申请号：US13107722

申请日：2011-05-13

申请人： Sharat Batra ,  Amit Vasant Itagi ,  Ganping Ju ,  Xuhui Jin

发明人： Sharat Batra ,  Amit Vasant Itagi ,  Ganping Ju ,  Xuhui Jin

IPC分类号： G11B13/08 ,  G11B5/02 ,  G11B13/00

CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021

摘要： Devices and methods are provided for heat-assisted magnetic recording (HAMR). In an illustrative example, a device includes a magnetic write pole having a convex pole tip; a magnetic opposing pole longitudinally displaced from the magnetic write pole; and a thermal-source component disposed proximate to the magnetic write pole and comprising a laterally elongated thermal-source peg disposed proximate to the convex pole tip.

摘要翻译： 提供了用于热辅助磁记录（HAMR）的设备和方法。 在说明性示例中，装置包括具有凸极尖端的磁写极; 从磁性写入极纵向移位的磁性相对极; 以及靠近磁性写入极设置的热源组件，并且包括靠近凸极尖端设置的横向细长的热源钉。