公开(公告)号：US08015694B2

公开(公告)日：2011-09-13

申请号：US11959102

申请日：2007-12-18

申请人： Matthew J. Carey ,  Jeffrey R. Childress ,  Stefan Maat ,  Neil Smith

发明人： Matthew J. Carey ,  Jeffrey R. Childress ,  Stefan Maat ,  Neil Smith

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/3909 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/098 ,  G11B5/3932 ,  G11B2005/3996 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A “scissoring-type” current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with dual ferromagnetic sensing or free layers separated by a nonmagnetic spacer layer has improved stability as a result of etch-induced uniaxial magnetic anisotropy in each of the free layers. Each of the two ferromagnetic free layers has an etch-induced uniaxial magnetic anisotropy and an in-plane magnetic moment substantially parallel to its uniaxial anisotropy in the quiescent state, i.e., the absence of an applied magnetic field. The etch-induced uniaxial anisotropy of each of the free layers is achieved either by direct ion etching of each of the free layers, and/or by ion etching of the layer on which each of the free layers is deposited. A strong magnetic anisotropy is induced in the free layers by the etching, which favors generally orthogonal orientation of the two free layers in the quiescent state.

摘要翻译： 具有双铁磁感测或由非磁性间隔层隔开的自由层的“扫描型”电流垂直平面（CPP）磁阻传感器具有改善的稳定性，这是由于每个中的蚀刻诱导的单轴磁各向异性 自由层。 两个铁磁自由层中的每一个具有蚀刻诱导的单轴磁各向异性和在静止状态下基本上平行于其单轴各向异性的面内磁矩，即不存在施加的磁场。 每个自由层的蚀刻诱导的单轴各向异性通过对每个自由层的直接离子蚀刻和/或通过其上沉积有每个自由层的层的离子蚀刻来实现。 通过蚀刻在自由层中诱发强烈的磁各向异性，这有利于静止状态下的两个自由层的大致正交取向。

公开(公告)号：US07982996B2

公开(公告)日：2011-07-19

申请号：US12632787

申请日：2009-12-07

申请人： Neil Smith ,  Petrus Antonius VanDerHeijden

发明人： Neil Smith ,  Petrus Antonius VanDerHeijden

IPC分类号： G11B5/02

CPC分类号： G11B5/3133 ,  G11B5/1278 ,  G11B2005/001 ,  G11B2005/0024

摘要： A microwave-assisted magnetic recording (MAMR) write head and system has a spin-torque oscillator (STO) located between the write pole of the write head and a trailing shield that alters the write field from the write pole. The STO is a stack of layers whose planes lie generally parallel to the X-Y plane of an X-Y-Z coordinate system, the stack including a ferromagnetic polarizer layer, a free ferromagnetic layer, and a nonmagnetic electrically conductive spacer between the polarizer layer and the free layer. In the presence of the write field from the write pole the polarizer layer has its magnetization oriented at an angle between 20 and 80 degrees, preferably between 30 and 70 degrees, with the Z-axis. In the presence of a direct electrical current through the STO stack, the free layer magnetization rotates or precesses about the Z-axis with a non-zero angle to the Z-axis.

摘要翻译： 微波辅助磁记录（MAMR）写头和系统具有位于写头的写极之间的自旋扭矩振荡器（STO）和从写极改变写入场的后屏蔽。 STO是其平面大致平行于X-Y-Z坐标系的X-Y平面的一叠层，该堆叠包括在偏振层和自由层之间的铁磁偏振器层，自由铁磁层和非磁性导电间隔物。 在写磁极存在写入场的情况下，偏振器层的磁化方向与Z轴成20度到80度之间，优选地在30度和70度之间的角度。 在存在通过STO堆叠的直接电流的情况下，自由层磁化围绕Z轴以与Z轴成非零角度的方式旋转或进动。

公开(公告)号：USD615988S1

公开(公告)日：2010-05-18

申请号：US29331295

申请日：2009-01-22

申请人： Mickelle Weary ,  Rebecca M. Lewis ,  Laura Koch ,  Jennifer A. Seery ,  Catherine Twomey Fosnot ,  Aja M. Hammerly ,  Neil Smith ,  Nigel J. Green ,  Roy Leban ,  Slavi Marinov Marinov ,  Valentin Mihov ,  Christopher M. Franklin ,  Christopher Cook ,  Nathan Brutzman ,  Lou Gray ,  Benjamin W. Slivka ,  Lorenzo Pasqualis ,  Daniel R. Kerns ,  Tami Caryl Borowick ,  Clifton S. Swiggett ,  Ken Cursoe ,  Ronald A. Kornfeld ,  Sarah Daniels

设计人： Mickelle Weary ,  Rebecca M. Lewis ,  Laura Koch ,  Jennifer A. Seery ,  Catherine Twomey Fosnot ,  Aja M. Hammerly ,  Neil Smith ,  Nigel J. Green ,  Roy Leban ,  Slavi Marinov Marinov ,  Valentin Mihov ,  Christopher M. Franklin ,  Christopher Cook ,  Nathan Brutzman ,  Lou Gray ,  Benjamin W. Slivka ,  Lorenzo Pasqualis ,  Daniel R. Kerns ,  Tami Caryl Borowick ,  Clifton S. Swiggett ,  Ken Cursoe ,  Ronald A. Kornfeld ,  Sarah Daniels

公开(公告)号：US07423847B2

公开(公告)日：2008-09-09

申请号：US11268275

申请日：2005-11-03

申请人： Matthew J. Carey ,  Jeffrey R. Childress ,  Stefan Maat ,  Neil Smith

发明人： Matthew J. Carey ,  Jeffrey R. Childress ,  Stefan Maat ,  Neil Smith

IPC分类号： G11B5/39

CPC分类号： G11B5/398 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3906

摘要： A current-perpendicular-to-the-plane spin-valve (CPP-SV) magnetoresistive sensor has an insulating layer with at least one aperture that confines the flow of sense current through the active region. The apertures are located closer to the sensing edge of the sensor than to the back edge of the sensor. The aperture (or apertures) are patterned by e-beam lithography, which enables the number, size and location of the apertures to be precisely controlled. The insulating layer may be located inside the electrically conductive nonmagnetic spacer layer, or outside of the magnetically active layers of the spin-valve. More than one insulating layer may be included in the stack to define conductive current paths where the apertures of the insulating layers overlap. The apertures are filled with electrically conductive material, typically the same material as that used for the spacer layer.

摘要翻译： 电流 - 垂直于平面的自旋阀（CPP-SV）磁阻传感器具有绝缘层，其具有至少一个限制感应电流通过有源区域的孔径。 孔比传感器的后边缘更靠近传感器的感测边缘。 孔（或孔）通过电子束光刻被图案化，这使得能够精确地控制孔的数量，尺寸和位置。 绝缘层可以位于导电非磁性间隔层内部，或位于自旋阀的磁性有效层的外部。 堆叠中可以包括多于一个绝缘层，以限定绝缘层的孔重叠的导电电流路径。 孔被填充有导电材料，通常与用于间隔层的材料相同。

公开(公告)号：US20080058550A1

公开(公告)日：2008-03-06

申请号：US11897688

申请日：2007-08-31

申请人： Ian Patel ,  Neil Smith ,  Simon Nicholas Tyler

发明人： Ian Patel ,  Neil Smith ,  Simon Nicholas Tyler

IPC分类号： C07C291/00

CPC分类号： C07C239/10 ,  C07B2200/07

摘要： A process for preparing a salt of compound of formula (I) wherein R1 and R2 are independently selected from an organic group other than hydrogen, said process comprising reacting a compound of formula (II) with water and an organic acid, in the absence of hydroxylamine. The reaction is useful in preparing a range of chemical intermediates, in particular chiral compounds.

摘要翻译： 制备其中R 1和R 2的式（I）化合物的盐的方法独立地选自除氢以外的有机基团，所述方法包括使化合物 （II）与水和有机酸反应，在不存在羟胺的情况下。 该反应可用于制备一系列化学中间体，特别是手性化合物。

公开(公告)号：US20080038708A1

公开(公告)日：2008-02-14

申请号：US11777998

申请日：2007-07-13

申请人： Benjamin Slivka ,  Lou Gray ,  Roy Leban ,  Nigel Green ,  Daniel Kerns ,  Neil Smith ,  Mickelle Weary ,  Cristopher Cook ,  Cheryl Dodge ,  Ronald Kornfeld

发明人： Benjamin Slivka ,  Lou Gray ,  Roy Leban ,  Nigel Green ,  Daniel Kerns ,  Neil Smith ,  Mickelle Weary ,  Cristopher Cook ,  Cheryl Dodge ,  Ronald Kornfeld

IPC分类号： G09B7/00

CPC分类号： G09B7/08

摘要： In one embodiment, the invention discloses a method for adapting educational content. The method comprises generating data for each of a plurality of students, the data pertaining to an aspect of the student's interaction with an educational system, combining the generated data to form a combined data set; analyzing the combined data set to identify clusters, each representing similar students according to a mathematical model; and adapting the educational system to provide a customized learning experience for a particular student based on an identified cluster.

摘要翻译： 在一个实施例中，本发明公开了一种用于适应教育内容的方法。 所述方法包括为多个学生中的每一个生成数据，所述数据涉及学生与教育系统的交互的一个方面，组合所生成的数据以形成组合的数据集; 分析组合数据集以识别群集，每个代表类似的学生根据数学模型; 并适应教育系统，为特定学生提供基于识别的群体的定制学习体验。

公开(公告)号：US20070253119A1

公开(公告)日：2007-11-01

申请号：US11380625

申请日：2006-04-27

申请人： Matthew Carey ,  Jeffrey Childress ,  Stefan Maat ,  Neil Smith

发明人： Matthew Carey ,  Jeffrey Childress ,  Stefan Maat ,  Neil Smith

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/3932 ,  B82Y10/00 ,  B82Y25/00 ,  G01R33/093 ,  G11B5/3912 ,  G11B2005/3996

摘要： A current-perpendicular-to-the-plane (CPP) magnetoresistive sensor has an antiparallel free (APF) structure as the free layer and a specific direction for the applied bias or sense current. The (APF) structure has a first free ferromagnetic (FL1), a second free ferromagnetic layer (FL2), and an antiparallel (AP) coupling (APC) layer that couples FL1 and FL2 together antiferromagnetically with the result that FL1 and FL2 have substantially antiparallel magnetization directions and rotate together in the presence of a magnetic field. The thicknesses of FL1 and FL2 are chosen to obtain the desired net free layer magnetic moment/area for the sensor, and the thickness of FL1 is preferably chosen to be greater than the spin-diffusion length of the electrons in the FL1 material to maximize the bulk spin-dependent scattering of electrons and thus maximize the sensor signal. The CPP sensor operates specifically with the conventional sense current (opposite the electron current) directed from the pinned ferromagnetic layer to the APF structure, which results in suppression of current-induced noise.

摘要翻译： 电流垂直平面（CPP）磁阻传感器具有作为自由层的反向平行自由（APF）结构和施加的偏置或感测电流的特定方向。 （APF）结构具有第一自由铁磁（FL1），第二自由铁磁层（FL2）和反FL-FL2与FL2耦合的反并联（AP）耦合（APC）层，其结果是FL1和FL2具有实质上 反平行磁化方向，并且在存在磁场的情况下一起旋转。 选择FL1和FL2的厚度以获得用于传感器的期望的净自由层磁矩/面积，并且FL1的厚度优选地选择为大于FL1材料中的电子的自旋扩散长度以使 电子的体自旋依赖散射，从而使传感器信号最大化。 CPP传感器与从钉扎铁磁层引导到APF结构的常规感测电流（与电子电流相反）特别地工作，这导致电流引起的噪声的抑制。

公开(公告)号：US20070251359A1

公开(公告)日：2007-11-01

申请号：US11745014

申请日：2007-05-07

申请人： John K. Junkers ,  Peter Koppenhoefer ,  Calin Voicu ,  Neil Smith ,  Edward Kim

发明人： John K. Junkers ,  Peter Koppenhoefer ,  Calin Voicu ,  Neil Smith ,  Edward Kim

IPC分类号： B25B19/00

CPC分类号： B25B21/00 ,  B25B13/488 ,  B25B21/002 ,  B25B23/0078

摘要： A torque intensifying tool for tightening and loosening threaded connectors has at least one torque intensifier means having a torque intensifier housing portion, having input means and having a first output means and a second output means, a drive operatively connected with the input means for transmitting a torque from the drive through the intensifying means to a threaded connector, so that in one mode of operation the torque intensifier housing portion together with the first and the second output means turn in the same direction and the same speed and torque as the input means, and in another mode of operation the torque intensifier housing portion together with one of the first and second output means receives a turning force in one direction while the other one of the first and second output means receives an equal turning force in the opposite direction at a lower speed but higher torque than the input means, and so that one of the first and second output means turns in the one mode and in the another mode while the other of the first and second output means turns in the one mode and reacts in the another mode.

摘要翻译： 用于紧固和松开螺纹连接器的扭矩增强工具具有至少一个扭矩增强器装置，其具有扭矩增强器壳体部分，具有输入装置并具有第一输出装置和第二输出装置，驱动器与输入装置可操作地连接，用于传送 从驱动器通过增强装置到螺纹连接器的扭矩，使得在一个操作模式中，扭矩增强器壳体部分与第一和第二输出装置一起转动与输入装置相同的方向和相同的速度和扭矩， 并且在另一种操作模式中，扭矩增强器壳体部分与第一和第二输出装置中的一个输出装置一起接收一个方向上的转动力，而第一和第二输出装置中的另一个在一个方向上接收相反方向的相等的转动力 比输入装置低的速度但是更高的扭矩，并且使得第一和第二输出装置中的一个转向一个 模式和另一模式，而第一和第二输出装置中的另一个以一种模式转动并在另一种模式下作出反应。

公开(公告)号：US07167346B2

公开(公告)日：2007-01-23

申请号：US10883204

申请日：2004-06-30

申请人： Matthew J. Carey ,  Bruce A. Gurney ,  Stefan Maat ,  Neil Smith

发明人： Matthew J. Carey ,  Bruce A. Gurney ,  Stefan Maat ,  Neil Smith

IPC分类号： G11B5/33

CPC分类号： G11C11/14 ,  B82Y25/00 ,  G01R33/093 ,  G01R33/095 ,  G11B5/39 ,  G11B5/3993 ,  G11B2005/0008 ,  H01L43/08

摘要： An extraordinary magnetoresistance (EMR) sensor has an antiferromagnetic/ferromagnetic exchange-coupled bilayer structure on top of the EMR active film. The ferromagnetic layer in the bilayer structure has perpendicular magnetic anisotropy and is exchange-biased by the antiferromagnetic layer. The antiferromagnetic/ferromagnetic bilayer structure provides a magnetic field perpendicular to the plane of the EMR active film to bias the magnetoresistance vs. field response of the EMR sensor. The ferromagnetic layer may be formed of any of the ferromagnetic materials useful for perpendicular magnetic recording, and is prepared in a way that its anisotropy axis is significantly out-of-plane. The antiferromagnetic layer is formed of any of the known Mn alloys, such as PtMn, NiMn, FeMn, IrMn, PdMn, PtPdMn and RhMn, or any of the insulating antiferromagnetic materials, such as those based on the cobalt oxide and nickel oxide antiferromagnetic materials.

摘要翻译： 非常大的磁阻（EMR）传感器在EMR活性膜的顶部具有反铁磁/铁磁交换耦合双层结构。 双层结构中的铁磁层具有垂直的磁各向异性，并被反铁磁层交换偏置。 反铁磁/铁磁双层结构提供垂直于EMR有源膜的平面的磁场，以偏置EMR传感器的磁阻与场响应。 铁磁层可以由用于垂直磁记录的任何铁磁材料形成，并且以使其各向异性轴显着超出平面的方式制备。 反铁磁层由任何已知的Mn合金形成，例如PtMn，NiMn，FeMn，IrMn，PdMn，PtPdMn和RhMn，或任何绝缘反铁磁材料，例如基于氧化钴和氧化镍反铁磁材料的那些 。

公开(公告)号：US07133255B2

公开(公告)日：2006-11-07

申请号：US10650943

申请日：2003-08-27

申请人： Jeffrey S. Lille ,  Neil Smith

发明人： Jeffrey S. Lille ,  Neil Smith

IPC分类号： G11B5/147

CPC分类号： G11B5/187

摘要： A magnetic head having a magnetic pole that includes a pole tip and a yoke. The pole tip includes an elongated neck, having an anchor piece on one end and a yoke interconnection piece on the other end. The air bearing surface of the head is located approximately at the midpoint of the elongated neck, and shadowing effects of the end pieces during the ion milling notching process do not create significant variations in the width of the neck at locations near the midpoint of the neck. As a result, variations of the pole tip width at the ABS of fabricated magnetic heads is significantly reduced, and processing yield is therefore increased. The yoke is engaged to the pole tip at a location along the neck that is close to the air bearing surface. In a preferred embodiment, the yoke interconnect piece is encapsulated within the yoke.

摘要翻译： 具有磁极的磁头，其包括极尖和磁轭。 极尖包括细长的颈部，在一端具有锚固件，另一端具有轭互连件。 头部的空气支承表面大致位于细长颈部的中点处，并且离子铣削切口过程中端部件的阴影效应在颈部中点附近的位置处不会产生明显的颈部宽度变化 。 结果，制造的磁头的ABS的极尖宽度的变化显着降低，因此加工产量增加。 磁轭在颈部靠近空气轴承表面的位置处接合到磁极尖端。 在优选实施例中，磁轭互连件被封装在磁轭内。