公开(公告)号：US20120127786A1

公开(公告)日：2012-05-24

申请号：US12953205

申请日：2010-11-23

申请人： Nurul Amin ,  Dimitar V. Dimitrov ,  Haiwen Xi ,  Song S. Xue

发明人： Nurul Amin ,  Dimitar V. Dimitrov ,  Haiwen Xi ,  Song S. Xue

IPC分类号： G11C11/14 ,  H01L29/82

CPC分类号： G11C11/5607 ,  G11C11/161 ,  G11C11/1659 ,  G11C11/1675 ,  H01L27/222 ,  Y10S977/935

摘要： An apparatus and associated method for a non-volatile memory cell, such as a multi-bit magnetic random access memory cell. In accordance with various embodiments, a first magnetic tunnel junction (MTJ) is adjacent to a second MTJ having a magnetic filter. The first MTJ is programmed to a first logical state with a first magnetic flux while the magnetic filter absorbs the first magnetic flux to prevent the second MTJ from being programmed.

摘要翻译： 一种用于非易失性存储单元（诸如多位磁随机存取存储单元）的装置和相关方法。 根据各种实施例，第一磁性隧道结（MTJ）与具有磁性过滤器的第二MTJ相邻。 第一MTJ被编程为具有第一磁通量的第一逻辑状态，同时磁性滤波器吸收第一磁通量以防止第二MTJ被编程。

公开(公告)号：US20120087186A1

公开(公告)日：2012-04-12

申请号：US12900314

申请日：2010-10-07

申请人： Nurul Amin ,  Johannes Van Ek

发明人： Nurul Amin ,  Johannes Van Ek

IPC分类号： G11C11/15

CPC分类号： G11C11/5607 ,  G11B5/02 ,  G11B5/66 ,  G11B5/746 ,  G11C11/161 ,  G11C11/1675

摘要： An apparatus and associated method for a multi-bit memory capable of being selected with a magnetic layer. Various embodiments of the present invention are generally directed to a first selection layer with a low coercivity that is disposed between first and second storage layers that each have a high coercivity. In response to magnetic saturation of the first selection layer, programming of a logical state to the second storage layer is allowed.

公开(公告)号：US08098455B2

公开(公告)日：2012-01-17

申请号：US11823432

申请日：2007-06-27

申请人： Stefan A. Ionescu ,  Ladislav R. Pust ,  Michael T. Johnson ,  Nurul Amin

发明人： Stefan A. Ionescu ,  Ladislav R. Pust ,  Michael T. Johnson ,  Nurul Amin

IPC分类号： G11B5/127

CPC分类号： G11B5/1278 ,  G11B5/02 ,  G11B5/3123 ,  G11B5/3133 ,  G11B2005/0002

摘要： A magnetic device includes a write element having a write element tip and a conductive coil for carrying a current to induce a first field from the write element. A conductor proximate the write element tip carries the current to generate a second field that augments the first field. A driver provides the current to the conductive coil and the conductor, and a circuit phase shifts the current through the conductor relative to the current through the conductive coil.

摘要翻译： 磁性装置包括具有写入元件尖端和用于承载电流以从写入元件引起第一场的导电线圈的写入元件。 靠近写入元件尖端的导体承载电流以产生增加第一场的第二场。 驱动器向导电线圈和导体提供电流，并且电路相对于通过导电线圈的电流使电流通过导体。

公开(公告)号：US07835110B2

公开(公告)日：2010-11-16

申请号：US11656692

申请日：2007-01-23

申请人： Alan Johnston ,  Roger Hipwell ,  Hans Leuthold ,  Song S. Xue ,  Nurul Amin ,  Andrew White ,  Patrick Ryan ,  Bradley Ver Meer ,  John Pendray ,  Steven Kalderon ,  Wayne Bonin ,  Jeffery Berkowitz

发明人： Alan Johnston ,  Roger Hipwell ,  Hans Leuthold ,  Song S. Xue ,  Nurul Amin ,  Andrew White ,  Patrick Ryan ,  Bradley Ver Meer ,  John Pendray ,  Steven Kalderon ,  Wayne Bonin ,  Jeffery Berkowitz

IPC分类号： G11B5/105

CPC分类号： G11B25/043 ,  B82Y10/00 ,  G11B9/1436 ,  G11B19/2009 ,  G11B33/126 ,  G11B33/144

摘要： A micro-electromechanical systems (MEMS) disc drive includes high-precision and integrated components to allow for increased functionality, robustness and reduced size as compared to currently produced disc drives. Integrating multiple subcomponents of the disc drive using batch processing provides low manufacturing costs. Furthermore, using MEMS techniques, new features can be added to disc drives. For example, an environmental control component, an accelerometer and/or a thermometer may be integrated into the housing of the disc drive.

摘要翻译： 微机电系统（MEMS）磁盘驱动器包括高精度和集成的组件，以便与当前生产的磁盘驱动器相比能够增加功能，鲁棒性和减小的尺寸。 使用批处理集成磁盘驱动器的多个子组件提供了低制造成本。 此外，使用MEMS技术，可以将新功能添加到磁盘驱动器。 例如，可以将环境控制部件，加速度计和/或温度计集成到盘驱动器的壳体中。

公开(公告)号：US20090251827A9

公开(公告)日：2009-10-08

申请号：US10881015

申请日：2004-06-30

申请人： Taras Pokhil ,  Nurul Amin ,  Steven Bozeman ,  Steven Kalderon ,  Andrzej Stankiewicz ,  Ned Tabat ,  Pu-Ling Lu ,  Johannes Van Ek ,  Janusz Nowak ,  Patrick Ryan

发明人： Taras Pokhil ,  Nurul Amin ,  Steven Bozeman ,  Steven Kalderon ,  Andrzej Stankiewicz ,  Ned Tabat ,  Pu-Ling Lu ,  Johannes Van Ek ,  Janusz Nowak ,  Patrick Ryan

IPC分类号： G11B5/33 ,  G11B5/147

CPC分类号： G11B5/17 ,  G11B5/1272 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3133

摘要： The present invention relates to a head having an air bearing surface for confronting the surface of a storage medium. The head includes a first pole that is spaced apart from a second pole. At least one non-magnetic spacer is positioned between the first pole and the second pole such that the first pole is magnetically decoupled from the second pole. In a further aspect, one or both of the first pole and the second pole can be elliptical in shape.

摘要翻译： 本发明涉及具有用于面对存储介质的表面的空气轴承表面的头部。 头部包括与第二极间隔开的第一极。 至少一个非磁性间隔件位于第一极和第二极之间，使得第一极与第二极磁性地分离。 在另一方面，第一极和第二极中的一个或两个可以是椭圆形的。

公开(公告)号：US07440213B2

公开(公告)日：2008-10-21

申请号：US11054456

申请日：2005-02-09

申请人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

发明人： Nurul Amin ,  Song S. Xue ,  Patrick J. Ryan

IPC分类号： G11B27/36 ,  G11B5/03 ,  G11B5/17

CPC分类号： G11B5/3113 ,  G11B5/1278

摘要： The present invention provides a magnetic writer. The magnetic writer comprises a write circuit, a write pole, a first write coil for inducing a first magnetic field in the write pole by a first current provided by the write circuit, and a second write coil for inducing a second magnetic field in the write pole by a second current provided by the write circuit. The write circuit provides a first current through the first coil and a second current through the second coil. The write circuit controls the direction of the first current and the second current so that, during writing, the first magnetic field and the second magnetic field have components perpendicular to the air bearing surface that are in the same direction. When not writing, the first magnetic field and second magnetic field have components perpendicular to the air bearing surface in opposite directions.

摘要翻译： 本发明提供一种磁性写入器。 磁性写入器包括写入电路，写入极，用于通过由写入电路提供的第一电流在写入极中引起第一磁场的第一写入线圈和用于在写入中引起第二磁场的第二写入线圈 由写入电路提供的第二电流。 写入电路提供通过第一线圈的第一电流和通过第二线圈的第二电流。 写入电路控制第一电流和第二电流的方向，使得在写入期间，第一磁场和第二磁场具有垂直于空气轴承表面的分量处于相同方向的分量。 当不写时，第一磁场和第二磁场具有相反方向垂直于空气轴承表面的分量。

公开(公告)号：US20080186636A1

公开(公告)日：2008-08-07

申请号：US12100761

申请日：2008-04-10

申请人： Nurul Amin ,  Yuming Zhou ,  Kaizhong Gao ,  Patrick J. Ryan ,  Steven Kalderon ,  Song S. Xue ,  Shaoping Li ,  Mark T. Kief

发明人： Nurul Amin ,  Yuming Zhou ,  Kaizhong Gao ,  Patrick J. Ryan ,  Steven Kalderon ,  Song S. Xue ,  Shaoping Li ,  Mark T. Kief

IPC分类号： G11B5/33

CPC分类号： G11B5/1274 ,  G11B5/1278

摘要： A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The magnetic element is spaced from the main pole. The magnetic element has a first edge closest to the main pole and a second edge furthest from the main pole. Permeability of the magnetic element increases from the first edge to the second edge.

摘要翻译： 转换头具有主极和至少一个磁性元件（例如返回极或屏蔽），其提供由主极产生的磁场的潜在返回路径。 磁性元件与主极间隔开。 磁性元件具有最靠近主极的第一边缘和最远离主极的第二边缘。 磁性元件的渗透性从第一边缘增加到第二边缘。

公开(公告)号：US07310202B2

公开(公告)日：2007-12-18

申请号：US10809245

申请日：2004-03-25

申请人： Mark T. Kief ,  Nurul Amin ,  Song S. Xue

发明人： Mark T. Kief ,  Nurul Amin ,  Song S. Xue

IPC分类号： G11B5/17

CPC分类号： G11B5/1272 ,  G11B5/17

摘要： A magnetic write head for recording data having reduced erasure caused by a magnetic field is disclosed. The magnetic write head include a main pole and a conductive coil positioned adjacent the main pole. The conductive coil is insulated from the main pole. The magnetic write head includes means for directing a magnetic field produced by the conductive coil toward the main pole.

摘要翻译： 公开了一种用于记录由磁场引起的擦除减少的数据的磁写头。 磁写头包括主极和邻近主极定位的导电线圈。 导电线圈与主极绝缘。 磁写头包括用于将由导电线圈产生的磁场引向主极的装置。

公开(公告)号：US07298587B2

公开(公告)日：2007-11-20

申请号：US10309682

申请日：2002-12-04

申请人： Taras G. Pokhil ,  Ned Tabat ,  Martin L. Plumer ,  Steven P. Bozeman ,  Nurul Amin

发明人： Taras G. Pokhil ,  Ned Tabat ,  Martin L. Plumer ,  Steven P. Bozeman ,  Nurul Amin

IPC分类号： G11B5/147

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3113 ,  G11B5/3116 ,  G11B5/332 ,  G11B5/3967 ,  G11B2005/3996

摘要： A magnetic recording head having an air bearing surface for confronting a surface of a rotating disc and comprising a pole tip and a generally rounded and substantially planar body attached to the pole tip is disclosed. The width of the pole tip defines a track width of data written to the rotating disc. The generally rounded shape of the top pole body is such that top pole magnetization gradually changes its direction and follows the edges of the body. Further, the pole tip has low remanence, gradual spin structure and no domain walls formed near the pole tip.

摘要翻译： 公开了一种磁记录头，其具有用于面对旋转盘的表面的空气轴承表面，并且包括极尖和连接到极尖的大致圆形且基本上平坦的主体。 极尖的宽度限定写入旋转盘的数据的轨迹宽度。 顶极体的大致圆形形状使得顶极磁化逐渐改变其方向并跟随身体的边缘。 此外，极尖具有低的剩磁，逐渐的自旋结构，并且在极尖附近没有形成畴壁。

公开(公告)号：US20070025013A1

公开(公告)日：2007-02-01

申请号：US11190739

申请日：2005-07-27

申请人： Shaoping Li ,  Daniel Brown ,  Michael Montemorra ,  Nurul Amin

发明人： Shaoping Li ,  Daniel Brown ,  Michael Montemorra ,  Nurul Amin

IPC分类号： G11B17/00

CPC分类号： G11B25/043 ,  G11B5/102 ,  G11B33/1493

摘要： The present invention includes a data storage system. The data storage system includes an enclosure and at least one perpendicular recording device positioned within the enclosure and in communication with a recording medium. The recording medium includes a layer of magnetic material that has a permeability that is substantially similar to a permeability of a magnetic material in the recording device. The data storage system also includes a soft magnetic material included in the enclosure for shielding magnetic stray fields from the perpendicular recording device. The soft magnetic material has a permeability that is at least as great as approximately the permeability of the layer of magnetic material of the recording medium.

摘要翻译： 本发明包括数据存储系统。 数据存储系统包括外壳和位于外壳内并与记录介质通信的至少一个垂直记录装置。 记录介质包括具有与记录装置中的磁性材料的磁导率基本相似的磁导率的磁性材料层。 数据存储系统还包括用于屏蔽来自垂直记录装置的磁性杂散场的外壳中的软磁材料。 软磁性材料的磁导率至少与记录介质的磁性材料层的磁导率大致相同。