公开(公告)号：US08477453B2

公开(公告)日：2013-07-02

申请号：US12799927

申请日：2010-05-05

申请人： Kenichi Takano ,  Yuchen Zhou ,  Min Li ,  Joe Smyth

发明人： Kenichi Takano ,  Yuchen Zhou ,  Min Li ,  Joe Smyth

IPC分类号： G11B5/31

CPC分类号： G11B5/1278 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/315 ,  G11B5/3163 ,  G11B2005/0024

摘要： A main pole layer having at least a leading taper and trimmed pole tip portion is described. The leading taper increases head field up to ≧15000 Oe even for narrow track widths approaching 50 nm. For MAMR applications, a STO and trailing shield are sequentially formed on a trailing pole tip side. Furthermore, full side shields may be added to reduce fringing field. Another embodiment involves including both of a leading taper and trailing taper at the pole tip where leading taper angle is between 20° and 60° and trailing taper angle is from 10° to 45°. A method is provided for forming various embodiments of the present invention. A key feature is that milling depth at an effective neck height distance is greater than or equal to the pole tip thickness. A self aligned STO may be formed by the same ion milling step that defines track width.

摘要翻译： 描述了至少具有前导锥形和微调极尖部分的主极层。 即使对于接近50nm的窄轨道宽度，领先的锥形也增加了头部场>达15000 Oe。 对于MAMR应用，STO和后屏蔽依次形成在尾极端侧。 此外，可以添加全侧屏蔽以减少边缘场。 另一实施例涉及在极尖处包括前导锥形和后锥形两者，其中前锥度角在20°至60°之间，后锥角度为10°至45°。 提供了一种用于形成本发明的各种实施例的方法。 一个关键特征是在有效颈部高度距离处的铣削深度大于或等于极尖厚度。 可以通过定义轨道宽度的相同离子铣削步骤形成自对准STO。

公开(公告)号：US08300356B2

公开(公告)日：2012-10-30

申请号：US12800196

申请日：2010-05-11

申请人： Kunliang Zhang ,  Min Li ,  Yuchen Zhou

发明人： Kunliang Zhang ,  Min Li ,  Yuchen Zhou

IPC分类号： G11B5/235 ,  G11B5/31 ,  G11B5/39

CPC分类号： G11B5/235 ,  B82Y10/00 ,  B82Y25/00 ,  B82Y40/00 ,  G01R33/093 ,  G01R33/1284 ,  G11B5/1278 ,  G11B5/3153 ,  G11B5/33 ,  G11B5/3909 ,  G11B5/3967 ,  G11B2005/0024 ,  G11B2005/3996 ,  G11C11/161 ,  G11C11/1673 ,  G11C11/1675 ,  G11C11/18 ,  H01F1/0579 ,  H01F10/325 ,  H01F10/3254 ,  H01F10/3259 ,  H01F10/3286 ,  H01F10/329 ,  H01F10/3295 ,  H01F41/305 ,  H01L27/222 ,  H01L43/02 ,  H01L43/08 ,  H01L43/10 ,  H01L43/12 ,  Y10T428/1114 ,  Y10T428/1121 ,  Y10T428/1129 ,  Y10T428/115

摘要： A spin transfer oscillator with a seed/SIL/spacer/FGL/capping configuration is disclosed with a composite seed layer made of Ta and a metal layer having a fcc(111) or hcp(001) texture to enhance perpendicular magnetic anisotropy (PMA) in an overlying (A1/A2)X laminated spin injection layer (SIL). Field generation layer (FGL) is made of a high Bs material such FeCo. Alternatively, the STO has a seed/FGL/spacer/SIL/capping configuration. The SIL may include a FeCo layer that is exchanged coupled with the (A1/A2)X laminate (x is 5 to 50) to improve robustness. The FGL may include an (A1/A2)Y laminate (y=5 to 30) exchange coupled with the high Bs layer to enable easier oscillations. A1 may be one of Co, CoFe, or CoFeR where R is a metal, and A2 is one of Ni, NiCo, or NiFe. The STO may be formed between a main pole and trailing shield in a write head.

摘要翻译： 公开了具有种子/ SIL /间隔物/ FGL /覆盖构型的自旋转移振荡器，其具有由Ta制成的复合种子层和具有fcc（111）或hcp（001）结构的金属层，以增强垂直磁各向异性（PMA） 在叠层（A1 / A2）X层叠自旋注入层（SIL）中。 场发生层（FGL）由高Bs材料如FeCo制成。 或者，STO具有种子/ FGL /间隔物/ SIL /覆盖配置。 SIL可以包括与（A1 / A2）X层压体交换耦合的FeCo层（x为5至50）以改善坚固性。 FGL可以包括与高Bs层交换耦合的（A1 / A2）Y层叠体（y = 5〜30），以实现更容易的振荡。 A1可以是Co，CoFe或CoFeR中的一种，其中R是金属，A2是Ni，NiCo或NiFe之一。 STO可以形成在写入头中的主极和后屏蔽之间。

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：US20120149123A1

公开(公告)日：2012-06-14

申请号：US13370850

申请日：2012-02-10

申请人： Yuchen Zhou

发明人： Yuchen Zhou

IPC分类号： G01N27/72

CPC分类号： G01N27/745 ,  G01R33/1269 ,  G01R33/5601

摘要： Detection of magnetic beads at temperature below room temperature can increase the signal level significantly as compared to the same detection when performed at room temperature. Additional improvement is obtained if the beads are below 30 nm in size and if deviations of bead size from the median are small. A preferred format for the beads is a suspension of super-paramagnetic particles in a non-magnetic medium.

摘要翻译： 与在室温下进行的相同检测相比，在低于室温的温度下磁珠的检测可以显着提高信号水平。 如果珠子的尺寸小于30nm，并且如果珠粒尺寸与中位数的偏差小，则可获得额外的改进。 珠的优选形式是超顺磁性颗粒在非磁性介质中的悬浮液。

公开(公告)号：US20120147504A1

公开(公告)日：2012-06-14

申请号：US12928473

申请日：2010-12-13

申请人： Yuchen Zhou ,  Wenyu Chen ,  Joe Smyth

发明人： Yuchen Zhou ,  Wenyu Chen ,  Joe Smyth

IPC分类号： G11B5/127

CPC分类号： G11B5/3932 ,  G01R33/098 ,  G11B5/3909 ,  G11B2005/3996 ,  Y10T29/49044 ,  Y10T29/49048

摘要： A CPP MR read head and its method of fabrication includes a patterned CPP MR sensor stack having a SAF free layer structure that is longitudinally biased by the combination of an exchange biasing layer formed over the sensor stack and hard biasing layers that are formed adjacent to the patterned sides of the stack. The combination provides the stack with high resolution reading capabilities without the necessity for a narrow read gap formed by closely spaced top and bottom shields. Sixteen embodiments are described that provide different versions of the exchange biasing layer, different positions of the hard biasing layers and different patternings of the CPP MR sensor stack.

摘要翻译： CPP MR读取头及其制造方法包括具有SAF自由层结构的图案化CPP MR传感器堆叠，其通过在传感器堆叠上形成的交换偏置层与形成在传感器堆叠附近的硬偏置层的组合而被纵向偏置 堆叠的图案侧。 该组合提供了具有高分辨率读取能力的堆叠，而不需要由紧密间隔的顶部和底部屏蔽形成的窄读取间隙。 描述了提供不同版本的交换偏置层，硬偏置层的不同位置和CPP MR传感器堆叠的不同图案的十六个实施例。

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：US20120089081A1

公开(公告)日：2012-04-12

申请号：US13317203

申请日：2011-10-11

申请人： Wahng Chao Uei ,  Hieu Tieu ,  Yuchen Zhou

发明人： Wahng Chao Uei ,  Hieu Tieu ,  Yuchen Zhou

IPC分类号： A61M35/00

CPC分类号： A61H23/0245 ,  A61H2201/0153 ,  A61H2201/105 ,  A61M37/0092

摘要： The invention teaches a palm-held massage device which includes a driver that drives one or more massage elements which provides massage vibrations in one or more ultrasonic and subsonic frequencies, a controller that provides commands to the driver, a signal generator that provides frequency references to the driver, a power supply coupled to a contactless charger, and a specimen dispensing system.

摘要翻译： 本发明教导了一种手掌按摩装置，其包括驱动一个或多个在一个或多个超声波和亚音速频率中提供按摩振动的按摩元件的驱动器，向驾驶员提供命令的控制器，提供频率参考的信号发生器 驱动器，耦合到非接触充电器的电源和样本分配系统。

公开(公告)号：US20120089052A1

公开(公告)日：2012-04-12

申请号：US12932316

申请日：2011-02-22

申请人： Yuchen Zhou ,  Hieu Tieu ,  Chao Uei Wahng

发明人： Yuchen Zhou ,  Hieu Tieu ,  Chao Uei Wahng

IPC分类号： A61N7/00

CPC分类号： A61H23/0245 ,  A61H2201/0165

摘要： The present invention teaches an ultrasonic device for skin care massage, comprising one or more ultrasonic vibration transmission plates, each of which having a backside and a smooth surface for contacting human skin; and at least two different ultrasonic vibration transducers coupled to a backside of each of the ultrasonic vibration plates. Each of the ultrasonic vibration transducers generates an ultrasonic wave with a unique frequency between 20 kHz to 25 MHz. Each of the ultrasonic vibration transducers has a bottom surface paralleling to the smooth surface. A distance between the bottom surface of any of the ultrasonic vibration transducers to the smooth surface is approximately an integer times of the half wavelength of the ultrasonic wave generated by the ultrasonic vibration transducer.

摘要翻译： 本发明教导了一种用于皮肤护理按摩的超声波装置，包括一个或多个超声波振动传播板，每个超声波振动传播板具有背面和用于接触人体皮肤的光滑表面; 以及耦合到每个超声波振动板的背面的至少两个不同的超声波振动传感器。 每个超声波振动传感器产生具有20kHz至25MHz之间的唯一频率的超声波。 每个超声波振动换能器具有与光滑表面平行的底面。 任何超声波振动换能器的底面与平滑表面之间的距离约为由超声波振动换能器产生的超声波的半波长的整数倍。