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    Magnetic transducer with electrically conductive shield for reducing electromagnetic interference
    71.
    发明授权
    Magnetic transducer with electrically conductive shield for reducing electromagnetic interference 失效
    具有导电屏蔽的磁性换能器，用于减少电磁干扰

    公开(公告)号：US06859347B2

    公开(公告)日：2005-02-22

    申请号：US09756377

    申请日：2001-01-04

    申请人： Richard Hsiao ,  Klaas Berend Klaassen ,  Edward Hing Pong Lee ,  Timothy J. Moran ,  Vladimir Nikitin ,  Michael Paul Salo ,  Samuel Wei-San Yuan

    发明人： Richard Hsiao ,  Klaas Berend Klaassen ,  Edward Hing Pong Lee ,  Timothy J. Moran ,  Vladimir Nikitin ,  Michael Paul Salo ,  Samuel Wei-San Yuan

    IPC分类号： G11B5/11 ,  G11B5/31 ,  G11B5/33 ,  G11B5/39 ,  G11B5/48

    CPC分类号： G11B5/4853 ,  G11B5/11 ,  G11B5/3143 ,  G11B5/33 ,  G11B5/3903 ,  G11B5/486 ,  Y10T29/49032

    摘要： A magnetic transducer including an electrically conductive shield (ECS) which is disposed between the substrate and first magnetic shield is described. The ECS is preferably embedded in an insulating undercoat layer. The ECS is preferably electrically isolated from the magnetic sensor element and is externally connected to a ground available in the disk drive through the arm electronics. Two alternative ways for connecting the ECS to a ground are described. In one embodiment which is only effective with single-ended input type arm electronics, the ECS is connected to a ground through a via to a lead pad for the read head which is connected to the ground of the arm electronics. In a second and more preferred embodiment a separate lead pad is included on the head to allow the ECS to be connected to electronic or case ground when the head is installed in the arm. The extent of the ECS should be sufficiently large to cover the read head portion of the transducer, i.e., from the edge of the first magnetic shield to the outer edges of the read contact pads, but should preferably not cover the write head pads.

    摘要翻译： 描述了包括设置在基板和第一磁屏蔽之间的导电屏蔽（ECS）的磁换能器。 ECS优选地嵌入绝缘底涂层中。 ECS优选地与磁传感器元件电隔离，并且通过臂电子器件外部连接到盘驱动器中可用的地面。 描述了将ECS连接到地面的两种替代方式。 在一个实施例中，其仅对单端输入型臂电子器件有效，ECS通过通孔连接到地面，用于连接到臂电子器件的地面的用于读头的引线板。 在第二和更优选的实施例中，头部包括单独的引线板，以便当头部安装在臂中时，允许ECS连接到电子或壳体接地。 ECS的范围应该足够大以覆盖换能器的读头部分，即从第一磁屏蔽的边缘到读接触焊盘的外边缘，但是最好不覆盖写头焊盘。

    Method and system for providing multiple self-aligned logic cells in a single stack
    72.
    发明授权
    Method and system for providing multiple self-aligned logic cells in a single stack 有权
    在单个堆叠中提供多个自对准逻辑单元的方法和系统

    公开(公告)号：US09236561B2

    公开(公告)日：2016-01-12

    申请号：US13604182

    申请日：2012-09-05

    申请人： Mohamad Towfik Krounbi ,  Dmytro Apalkov ,  Vladimir Nikitin ,  Alexander A. G. Driskill-Smith

    发明人： Mohamad Towfik Krounbi ,  Dmytro Apalkov ,  Vladimir Nikitin ,  Alexander A. G. Driskill-Smith

    IPC分类号： H01L21/00 ,  H01L29/82 ,  H01L43/12 ,  H01L43/02 ,  H01L43/08 ,  G11C11/56 ,  G11C11/16 ,  H01L27/22

    CPC分类号： H01L43/12 ,  G11C11/161 ,  G11C11/5607 ,  H01L27/228 ,  H01L43/02 ,  H01L43/08

    摘要： A magnetic device including memory cells is provided. Each memory cell can store multiple bits corresponding to multiple data storage layers. Desired spacing(s) and desired junction angle(s) for the data storage layers are determined in each memory cell. The desired junction angle(s) and the desired spacing(s) correspond to spin transfer switching currents for the data storage layers having. A magnetoresistive stack including plurality of layers for each of the memory cells is deposited. The memory cells include the data storage layers. A data storage layer layers is spaced apart from nearest data storage layer(s) by a distance corresponding to the desired spacing(s). A mask corresponding to the memory cells is provided on the layers. The memory cells are defined such that each memory cell has the desired junction angle(s) and the desired spacing(s) and such that the data storage layers for each of the memory cells is self-aligned.

    摘要翻译： 提供包括存储单元的磁性装置。 每个存储器单元可以存储对应于多个数据存储层的多个位。 在每个存储单元中确定数据存储层的期望间隔和所需的结合角度。 期望的结角和期望的间隔对应于具有数据存储层的自旋转移开关电流。 存储包括用于每个存储器单元的多个层的磁阻堆叠。 存储单元包括数据存储层。 数据存储层层与最近的数据存储层间隔一段与期望间隔相对应的距离。 在层上提供对应于存储单元的掩模。 存储器单元被定义为使得每个存储器单元具有期望的结合角和期望的间隔，并且使得每个存储器单元的数据存储层是自对准的。

    METHOD AND SYSTEM FOR PROVIDING MAGNETIC JUNCTIONS HAVING IMPROVED CHARACTERISTICS
    76.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING MAGNETIC JUNCTIONS HAVING IMPROVED CHARACTERISTICS 有权
    用于提供具有改进特性的磁性结的方法和系统

    公开(公告)号：US20130154036A1

    公开(公告)日：2013-06-20

    申请号：US13332305

    申请日：2011-12-20

    申请人： Xueti Tang ,  Dmytro Apalkov ,  Steven M. Watts ,  Kiseok Moon ,  Vladimir Nikitin

    发明人： Xueti Tang ,  Dmytro Apalkov ,  Steven M. Watts ,  Kiseok Moon ,  Vladimir Nikitin

    IPC分类号： H01L43/10 ,  H01L43/12

    CPC分类号： H01L43/08 ,  G11C11/161 ,  G11C11/5607 ,  H01F10/3254 ,  H01F10/3286 ,  H01F10/3295

    摘要： A method and system provide a magnetic junction usable in a magnetic device. The magnetic junction includes a pinned layer, a nonmagnetic spacer layer, a free layer, at least one insulating layer, and at least one magnetic insertion layer adjoining the at least one insulating layer. The nonmagnetic spacer layer is between the pinned layer and the free layer. The at least one insulating layer is adjacent to at least one of the free layer and the pinned layer. The at least one magnetic insertion layer adjoins the at least one insulating layer. In some aspects, the insulating layer(s) include at least one of magnesium oxide, aluminum oxide, tantalum oxide, ruthenium oxide, titanium oxide, and nickel oxide The magnetic junction is configured such that the free layer is switchable between a plurality of stable magnetic states when a write current is passed through the magnetic junction.

    摘要翻译： 一种方法和系统提供可用于磁性装置的磁结。 磁结包括钉扎层，非磁性间隔层，自由层，至少一个绝缘层以及与至少一个绝缘层邻接的至少一个磁性插入层。 非磁性间隔层位于被钉扎层和自由层之间。 至少一个绝缘层与自由层和钉扎层中的至少一个相邻。 所述至少一个磁性插入层邻接所述至少一个绝缘层。 在一些方面，绝缘层包括氧化镁，氧化铝，氧化钽，氧化钌，氧化钛和氧化镍中的至少一种。磁结被构造成使得自由层可在多个稳定的 写入电流通过磁性结时的磁状态。

    Method and system for providing multiple logic cells in a single stack
    77.
    发明授权
    Method and system for providing multiple logic cells in a single stack 有权
    在单个堆栈中提供多个逻辑单元的方法和系统

    公开(公告)号：US08446761B2

    公开(公告)日：2013-05-21

    申请号：US13031001

    申请日：2011-02-18

    申请人： Dmytro Apalkov ,  Xueti Tang ,  Vladimir Nikitin ,  Alexander A. G. Driskill-Smith

    发明人： Dmytro Apalkov ,  Xueti Tang ,  Vladimir Nikitin ,  Alexander A. G. Driskill-Smith

    IPC分类号： G11C11/15

    CPC分类号： G11C11/5607 ,  G11C11/161 ,  G11C11/1659 ,  G11C11/1675

    摘要： A method and system for providing a magnetic junction usable in a magnetic device are described. The magnetic junction includes a pinned layer, a plurality of nonmagnetic spacer layers, and a plurality of free layers. The free layers are interleaved with the nonmagnetic spacer layers. A first nonmagnetic spacer layer of the nonmagnetic spacer layers is between the free layers and the pinned layer. Each of the free layers is configured to be switchable between stable magnetic states when a write current is passed through the magnetic junction. Each of the free layers has a critical switching current density. The critical switching current density of one of the free layers changes monotonically from the critical switching current density of an adjacent free layer. The adjacent free layer is between the pinned layer and the one of the plurality of free layers.

    摘要翻译： 描述了一种用于提供可用于磁性装置中的磁结的方法和系统。 磁结包括钉扎层，多个非磁性间隔层和多个自由层。 自由层与非磁性间隔层交错。 非磁性间隔层的第一非磁性间隔层位于自由层和被钉扎层之间。 每个自由层配置成当写入电流通过磁结时在稳定磁状态之间切换。 每个自由层具有关键的开关电流密度。 一个自由层的关键开关电流密度从相邻自由层的临界开关电流密度单调变化。 相邻的自由层在被钉扎层和多个自由层中的一个之间。

    METHOD AND SYSTEM FOR PROVIDING MULTIPLE LOGIC CELLS IN A SINGLE STACK
    79.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING MULTIPLE LOGIC CELLS IN A SINGLE STACK 有权
    用于在单个堆栈中提供多个逻辑单元的方法和系统

    公开(公告)号：US20120170357A1

    公开(公告)日：2012-07-05

    申请号：US13031001

    申请日：2011-02-18

    申请人： Dmytro Apalkov ,  Xueti Tang ,  Vladimir Nikitin ,  Alexander A.G. Driskill-Smith

    发明人： Dmytro Apalkov ,  Xueti Tang ,  Vladimir Nikitin ,  Alexander A.G. Driskill-Smith

    IPC分类号： G11C11/16 ,  G11B5/64

    CPC分类号： G11C11/5607 ,  G11C11/161 ,  G11C11/1659 ,  G11C11/1675

    摘要： A method and system for providing a magnetic junction usable in a magnetic device are described. The magnetic junction includes a pinned layer, a plurality of nonmagnetic spacer layers, and a plurality of free layers. The free layers are interleaved with the nonmagnetic spacer layers. A first nonmagnetic spacer layer of the nonmagnetic spacer layers is between the free layers and the pinned layer. Each of the free layers is configured to be switchable between stable magnetic states when a write current is passed through the magnetic junction. Each of the free layers has a critical switching current density. The critical switching current density of one of the free layers changes monotonically from the critical switching current density of an adjacent free layer. The adjacent free layer is between the pinned layer and the one of the plurality of free layers.

    摘要翻译： 描述了一种用于提供可用于磁性装置中的磁结的方法和系统。 磁结包括钉扎层，多个非磁性间隔层和多个自由层。 自由层与非磁性间隔层交错。 非磁性间隔层的第一非磁性间隔层位于自由层和被钉扎层之间。 每个自由层配置成当写入电流通过磁结时在稳定磁状态之间切换。 每个自由层具有关键的开关电流密度。 一个自由层的关键开关电流密度从相邻自由层的临界开关电流密度单调变化。 相邻的自由层在被钉扎层和多个自由层中的一个之间。