公开(公告)号：US20130308223A1

公开(公告)日：2013-11-21

申请号：US13474593

申请日：2012-05-17

申请人： Oscar J. Ruiz ,  Erhard Schreck

发明人： Oscar J. Ruiz ,  Erhard Schreck

IPC分类号： G11B21/12

CPC分类号： G11B5/607 ,  G11B5/6076 ,  G11B5/6088

摘要： In one general embodiment, a magnetic head includes a slider having a media-facing surface; and a device coupled to the slider and being selectively extendible for selectively contacting a magnetic medium at a frequency of between about 200 and about 600 kHz. Other magnetic heads and methods of use are described according to additional embodiments.

摘要翻译： 在一个一般实施例中，磁头包括具有介质面向表面的滑块; 以及耦合到所述滑块并且选择性地可延伸的装置，用于选择性地以大约200和大约600kHz之间的频率接触磁介质。 根据另外的实施例描述其它磁头和使用方法。

公开(公告)号：US20130170331A1

公开(公告)日：2013-07-04

申请号：US13340147

申请日：2011-12-29

申请人： John Contreras ,  Lidu Huang ,  Erhard Schreck ,  Barry C. Stipe

发明人： John Contreras ,  Lidu Huang ,  Erhard Schreck ,  Barry C. Stipe

IPC分类号： G11B11/105 ,  G11B11/24 ,  G11B17/32

CPC分类号： G11B5/3133 ,  G11B5/314 ,  G11B5/607 ,  G11B2005/0021

摘要： An apparatus according to one embodiment includes a near-field transducer positioned towards an air bearing surface side of the apparatus; and at least one conductor or circuit for causing heating of the near-field transducer. A method according to one embodiment includes heating the near-field transducer by passing a current through the at least one conductor or circuit; and illuminating the near-field transducer during a write operation, wherein the current does not pass through the at least one conductor or circuit for at least a majority of a time of illumination. Additional embodiments are also presented.

摘要翻译： 根据一个实施例的装置包括朝向装置的空气轴承表面侧定位的近场换能器; 以及用于引起近场换能器加热的至少一个导体或电路。 根据一个实施例的方法包括通过使电流通过至少一个导体或电路来加热近场换能器; 以及在写入操作期间照亮所述近场换能器，其中所述电流在所述照明时间的至少大部分时间内不通过所述至少一个导体或电路。 还提供了另外的实施例。

公开(公告)号：US08295132B2

公开(公告)日：2012-10-23

申请号：US13200478

申请日：2011-09-23

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： G11B5/3146 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163

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：US08248898B2

公开(公告)日：2012-08-21

申请号：US12925283

申请日：2010-10-18

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

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

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/105 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A waveguide structure for aligning a light source to a center waveguide (CWG) in a TAMR head is disclosed and includes two alignment waveguides (AWVG) symmetrically formed about a plane that bisects the CWG lengthwise dimension. Each AWVG has a light coupling section formed parallel to a side of the CWG and captures 0.5% to 10% of the light in the CWG. Each AWVG has an outlet that directs light to a photo detector or camera so that light intensity measurements lAWVG1 and lAWVG2 for first and second AWVG, respectively, can be taken at various positions of the light source. Optimum alignment occurs when (lAWVG1+lAWVG2) reaches a maximum value and |lAWVG1−lAWVG2| has a minimum value. AWVG outlets may be at the ABS, or at the side or back end of a slider. Measurement sensitivity is increased by decreasing the width of the AWVG.

摘要翻译： 公开了一种用于将光源对准TAMR头中的中心波导（CWG）的波导结构，并且包括关于平分CWG纵向尺寸的平面对称地形成的两个对准波导（AWVG）。 每个AWVG具有平行于CWG侧面并且捕获CWG中的0.5％至10％的光的光耦合部分。 每个AWVG都有一个出口，可以将光引导到光电检测器或照相机，以便分别在光源的各个位置拍摄第一个和第二个AWVG的光强度测量值lAWVG1和lAWVG2。 （lAWVG1 + 1AWVG2）达到最大值时，发生最佳对齐，并且| lAWVG1-1AWVG2 | 具有最小值。 AWVG插座可能位于ABS或滑块的侧面或后端。 通过减小AWVG的宽度来提高测量灵敏度。

公开(公告)号：US08233358B2

公开(公告)日：2012-07-31

申请号：US12456290

申请日：2009-06-15

申请人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

发明人： Yuchen Zhou ,  Kenichi Takano ,  Xuhui Jin ,  Erhard Schreck ,  Moris Dovek ,  Joe Smyth

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/02 ,  G11B5/3116 ,  G11B5/3146 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021 ,  Y10T29/49032

摘要： A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to operate most effectively, the maximum gradient of the magnetic recording field should be concentrated in the small region being heated. Typically this does not occur because the spot being heated by the antenna is offset from the position at which the magnetic pole concentrates its magnetic field. The present invention incorporates a magnetic core within a plasmon antenna, so the antenna effectively becomes an extension of the magnetic pole and produces a magnetic field whose maximum gradient overlaps the region being heated by edge plasmons being generated in a conducting layer surrounding the antenna's magnetic core.

摘要翻译： TAMR（热辅助磁记录）写头使用等离子体天线中激光产生的等离子体激元的能量来局部加热磁记录介质并降低其矫顽力和磁各向异性。 为了使TAMR头能够最有效地运行，磁记录场的最大梯度应该集中在被加热的小区域中。 通常这不会发生，因为被天线加热的点偏离磁极集中其磁场的位置。 本发明在等离子体激元天线内结合有磁芯，因此天线有效地成为磁极的延伸，并产生磁场，其最大梯度与在天线的磁芯周围的导电层中产生的边缘等离子体激元加热的区域重叠 。

公开(公告)号：US08228643B2

公开(公告)日：2012-07-24

申请号：US12585854

申请日：2009-09-25

申请人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

发明人： Hiromi Yuasa ,  Hideaki Fukuzawa ,  Yoshihiko Fuji ,  Shuichi Murakami ,  Michiko Hara ,  Kunliang Zhang ,  Min Li ,  Erhard Schreck

IPC分类号： G11B5/39

CPC分类号： G01R33/093 ,  B82Y25/00 ,  B82Y40/00 ,  G11B5/3906 ,  G11B5/398 ,  G11B5/3983 ,  H01F10/3259 ,  H01F10/3272 ,  H01F41/307 ,  H01L43/08 ,  H01L43/12

摘要： A method for manufacturing a magneto-resistance effect element is provided. The magneto-resistance effect element includes a first magnetic layer including a ferromagnetic material, a second magnetic layer including a ferromagnetic material and a spacer layer provided between the first magnetic layer and the second magnetic layer, the spacer layer having an insulating layer and a conductive portion penetrating through the insulating layer. The method includes: forming a film to be a base material of the spacer layer; performing a first treatment using a gas including at least one of oxygen molecules, oxygen atoms, oxygen ions, oxygen plasma and oxygen radicals on the film; and performing a second treatment using a gas including at least one of nitrogen ions, nitrogen atoms, nitrogen plasma, and nitrogen radicals on the film submitted to the first treatment.

摘要翻译： 提供一种制造磁阻效应元件的方法。 磁阻效应元件包括包括铁磁材料的第一磁性层，包括铁磁材料的第二磁性层和设置在第一磁性层和第二磁性层之间的间隔层，间隔层具有绝缘层和导电 部分穿透绝缘层。 该方法包括：将膜形成为间隔层的基材; 使用包含氧分子，氧原子，氧离子，氧等离子体和氧自由基中的至少一种的气体进行第一处理; 以及使用包含氮离子，氮原子，氮等离子体和氮自由基中的至少一种的气体进行第一次处理的膜的第二处理。

公开(公告)号：US20120176701A1

公开(公告)日：2012-07-12

申请号：US13282966

申请日：2011-10-27

申请人： Erhard Schreck

发明人： Erhard Schreck

IPC分类号： G11B33/14

CPC分类号： G11B25/043 ,  G11B33/148

摘要： A system and method for decreasing power consumption of hard disk drives through use of an external atmosphere of low density gas, such as helium, is described. An environment container reasonably resistant to diffusion and leakage of helium (container) is erected around an existing hard disk array or server, wherein a helium mixture is pumped into the container. The helium mixture within the container is maintained at a specified concentration via proper tubing and valves which may be manually or automatically controlled. The actual concentration need not be very pure in order to achieve reduced drag over the disks in each of the hard disk drives, thereby achieving reduced power consumption. The environment container is stand alone from the hard disk drives used such that an altered hard disk apparatus is unnecessary.

摘要翻译： 描述了通过使用低密度气体（例如氦）的外部气氛来降低硬盘驱动器的功率消耗的系统和方法。 在现有的硬盘阵列或服务器周围架设有适合抵抗氦（容器）扩散和泄漏的环境容器，其中将氦气混合物泵送到容器中。 容器内的氦气混合物通过可手动或自动控制的适当的管道和阀门保持在指定的浓度。 为了实现每个硬盘驱动器中的盘的减少的拖动，实际的浓度不必是非常纯净的，从而实现降低的功耗。 环境容器是独立于所使用的硬盘驱动器，使得不需要改变的硬盘设备。

公开(公告)号：US20120092971A1

公开(公告)日：2012-04-19

申请号：US12925283

申请日：2010-10-18

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

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

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/105 ,  G11B5/6088 ,  G11B2005/001 ,  G11B2005/0021

摘要： A waveguide structure for aligning a light source to a center waveguide (CWG) in a TAMR head is disclosed and includes two alignment waveguides (AWVG) symmetrically formed about a plane that bisects the CWG lengthwise dimension. Each AWVG has a light coupling section formed parallel to a side of the CWG and captures 0.5% to 10% of the light in the CWG. Each AWVG has an outlet that directs light to a photo detector or camera so that light intensity measurements lAWVG1 and lAWVG2 for first and second AWVG, respectively, can be taken at various positions of the light source. Optimum alignment occurs when (lAWVG1+lAWVG2) reaches a maximum value and |lAWVG1−lAWVG2| has a minimum value. AWVG outlets may be at the ABS, or at the side or back end of a slider. Measurement sensitivity is increased by decreasing the width of the AWVG.

摘要翻译： 公开了一种用于将光源对准TAMR头中的中心波导（CWG）的波导结构，并且包括关于平分CWG纵向尺寸的平面对称地形成的两个对准波导（AWVG）。 每个AWVG具有平行于CWG侧面并且捕获CWG中的0.5％至10％的光的光耦合部分。 每个AWVG都有一个出口，可以将光引导到光电检测器或照相机，以便分别在光源的各个位置拍摄第一个和第二个AWVG的光强度测量值lAWVG1和lAWVG2。 （lAWVG1 + 1AWVG2）达到最大值时，发生最佳对齐，并且| lAWVG1-1AWVG2 | 具有最小值。 AWVG插座可能位于ABS或滑块的侧面或后端。 通过减小AWVG的宽度来提高测量灵敏度。

公开(公告)号：US20120020194A1

公开(公告)日：2012-01-26

申请号：US13200478

申请日：2011-09-23

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： G11B13/04

CPC分类号： G11B5/3146 ,  G11B5/1278 ,  G11B5/1871 ,  G11B5/23 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/3163

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.

公开(公告)号：US20110292773A1

公开(公告)日：2011-12-01

申请号：US13136462

申请日：2011-08-01

申请人： Erhard Schreck ,  Kowang Liu ,  Kouji Shimazawa ,  Po-Kang Wang

发明人： Erhard Schreck ,  Kowang Liu ,  Kouji Shimazawa ,  Po-Kang Wang

IPC分类号： G11B11/00

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

摘要： A slider mounted TAMR (Thermal Assisted Magnetic Recording), DFH (Dynamic Flying Height) type read/write head using optical-laser generated surface plasmons in a small antenna to locally heat a magnetic medium, uses the same optical laser at low power to pre-heat the antenna. Maintaining the antenna at this pre-heated temperature, approximately 50% of its highest temperature during write operations, allows the DFH mechanism sufficient time to compensate for the thermal protrusion of the antenna at that lower temperature, so that thermal protrusion transients are significantly reduced when a writing operation occurs and full laser power is applied. The time constant for antenna protrusion is less than the time constant for DFH fly height compensation, so, without pre-heating, the thermal protrusion of the antenna due to absorption of optical radiation cannot be compensated by the DFH effect.