公开(公告)号：US08908429B2

公开(公告)日：2014-12-09

申请号：US13784230

申请日：2013-03-04

Applicant: Seagate Technology LLC

Inventor： Dimitar V. Dimitrov ,  Olle Gunnar Heinonen ,  Dexin Wang ,  Haiwen Xi

IPC: G11C11/16 ,  H01L43/08 ,  H01L43/02

CPC classification number: H01L43/02 ,  G11C11/16 ,  G11C11/161 ,  H01L43/08

Abstract: A method and apparatus for stray magnetic field compensation in a non-volatile memory cell, such as a spin-torque transfer random access memory (STRAM). In some embodiments, a first tunneling barrier is coupled to a reference structure that has a perpendicular anisotropy and a first magnetization direction. A recording structure that has a perpendicular anisotropy is coupled to the first tunneling barrier and a nonmagnetic spacer layer. A compensation layer that has a perpendicular anisotropy and a second magnetization direction in substantial opposition to the first magnetization direction is coupled to the nonmagnetic spacer layer. Further, the memory cell is programmable to a selected resistance state with application of a current to the recording structure.

Abstract translation: 一种在非易失性存储单元中的杂散磁场补偿的方法和装置，例如自旋转矩传递随机存取存储器（STRAM）。 在一些实施例中，第一隧道势垒耦合到具有垂直各向异性和第一磁化方向的参考结构。 具有垂直各向异性的记录结构耦合到第一隧道势垒和非磁性间隔层。 具有与第一磁化方向基本相对的垂直各向异性和第二磁化方向的补偿层耦合到非磁性间隔层。 此外，通过向记录结构施加电流，可将存储单元编程为选定的电阻状态。

公开(公告)号：US08681539B2

公开(公告)日：2014-03-25

申请号：US13862611

申请日：2013-04-15

Applicant: Seagate Technology LLC

Inventor： Yuankai Zheng ,  Dimitar V. Dimitrov ,  Dexin Wang ,  Haiwen Xi ,  Kaizhong Gao ,  Olle Heinonen ,  Wenzhong Zhu

IPC: G11C11/00

CPC classification number: G11C11/1675 ,  B82Y10/00 ,  B82Y25/00 ,  G11C11/16 ,  G11C11/161 ,  H01F10/3254 ,  H01F10/3268 ,  H01F10/3286 ,  H01F10/329 ,  H01L43/08

Abstract: Spin-transfer torque memory includes a composite free magnetic element, a reference magnetic element having a magnetization orientation that is pinned in a reference direction, and an electrically insulating and non-magnetic tunneling barrier layer separating the composite free magnetic element from the magnetic reference element. The free magnetic element includes a hard magnetic layer exchanged coupled to a soft magnetic layer. The composite free magnetic element has a magnetization orientation that can change direction due to spin-torque transfer when a write current passes through the spin-transfer torque memory unit.

Abstract translation: 自旋转矩存储器包括复合自由磁性元件，具有沿参考方向固定的磁化取向的参考磁性元件以及将复合自由磁性元件与磁性参考元件分离的电绝缘和非磁性隧道势垒层 。 自由磁性元件包括与软磁性层交换的硬磁性层。 复合自由磁性元件具有当写入电流通过自旋转移转矩存储单元时由于自旋转矩传递而改变方向的磁化取向。

公开(公告)号：US08687413B2

公开(公告)日：2014-04-01

申请号：US13779903

申请日：2013-02-28

Applicant: Seagate Technology LLC

Inventor： Yuankai Zheng ,  Haiwen Xi ,  Dimitar V. Dimitrov ,  Dexin Wang

IPC: G11C11/00

CPC classification number: H01L43/02 ,  B82Y25/00 ,  G11C11/16 ,  G11C11/1675 ,  H01F10/3254 ,  H01F10/3268 ,  H01L27/228 ,  H01L43/08 ,  H01L43/10

Abstract: A magnetic memory unit includes a tunneling barrier separating a free magnetic element and a reference magnetic element. A first phonon glass electron crystal layer is disposed on a side opposing the tunneling barrier of either the free magnetic element or the reference magnetic element. A second phonon glass electron crystal layer also be disposed on a side opposing the tunneling barrier of either the free magnetic element or the reference magnetic element to provide a Peltier effect on the free magnetic element and the reference magnetic element.

Abstract translation: 磁存储器单元包括分隔自由磁性元件和参考磁性元件的隧道势垒。 第一声​​子玻璃电子晶体层设置在与自由磁性元件或参考磁性元件的隧道势垒相对的一侧。 第二声子玻璃电子晶体层也设置在与自由磁性元件或参考磁性元件的隧道势垒相对的一侧上，以在自由磁性元件和参考磁性元件上提供珀尔帖效应。

公开(公告)号：US20130187115A1

公开(公告)日：2013-07-25

申请号：US13785516

申请日：2013-03-05

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Haiwen Xi ,  Ming Sun ,  Dexin Wang ,  Shuiyuan Huang ,  Michael Tang ,  Song S. Xue

IPC: H01L45/00

CPC classification number: H01L45/085 ,  H01L27/2409 ,  H01L27/2436 ,  H01L27/2463 ,  H01L27/2472 ,  H01L45/1233 ,  H01L45/1246 ,  H01L45/1266 ,  H01L45/141 ,  H01L45/143 ,  H01L45/1625 ,  H01L45/1633 ,  H01L45/1658 ,  H01L45/1675

Abstract: Programmable metallization memory cells include an electrochemically active electrode, an inert electrode and an internal layer between the electrochemically active electrode and the inert electrode. The internal layer having a fast ion conductor material and an apertured layer having a plurality of apertures defined by an electrically insulating material. Each aperture defines at least a portion of a column of fast ion conductor material having superionic clusters.

Abstract translation: 可编程金属化存储单元包括电化学活性电极，惰性电极和电化学活性电极和惰性电极之间的内层。 所述内层具有快速离子导体材料和多孔层，其具有由电绝缘材料限定的多个孔。 每个孔限定具有超离子簇的快速离子导体材料的列的至少一部分。

公开(公告)号：US20130175647A1

公开(公告)日：2013-07-11

申请号：US13779903

申请日：2013-02-28

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Yuankai Zheng ,  Haiwen Xi ,  Dimitar V. Dimitrov ,  Dexin Wang

IPC: H01L43/02

CPC classification number: H01L43/02 ,  B82Y25/00 ,  G11C11/16 ,  G11C11/1675 ,  H01F10/3254 ,  H01F10/3268 ,  H01L27/228 ,  H01L43/08 ,  H01L43/10

Abstract: A magnetic memory unit includes a tunneling barrier separating a free magnetic element and a reference magnetic element. A first phonon glass electron crystal layer is disposed on a side opposing the tunneling barrier of either the free magnetic element or the reference magnetic element. A second phonon glass electron crystal layer also be disposed on a side opposing the tunneling barrier of either the free magnetic element or the reference magnetic element to provide a Peltier effect on the free magnetic element and the reference magnetic element.

Abstract translation: 磁存储器单元包括分隔自由磁性元件和参考磁性元件的隧道势垒。 第一声​​子玻璃电子晶体层设置在与自由磁性元件或参考磁性元件的隧道势垒相对的一侧。 第二声子玻璃电子晶体层也设置在与自由磁性元件或参考磁性元件的隧道势垒相对的一侧上，以在自由磁性元件和参考磁性元件上提供珀尔帖效应。

公开(公告)号：US20130181306A1

公开(公告)日：2013-07-18

申请号：US13784230

申请日：2013-03-04

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Dimitar V. Dimitrov ,  Olle Gunnar Heinonen ,  Dexin Wang ,  Haiwen Xi

IPC: H01L43/02

CPC classification number: H01L43/02 ,  G11C11/16 ,  G11C11/161 ,  H01L43/08

Abstract: A method and apparatus for stray magnetic field compensation in a non-volatile memory cell, such as a spin-torque transfer random access memory (STRAM). In some embodiments, a first tunneling barrier is coupled to a reference structure that has a perpendicular anisotropy and a first magnetization direction. A recording structure that has a perpendicular anisotropy is coupled to the first tunneling barrier and a nonmagnetic spacer layer. A compensation layer that has a perpendicular anisotropy and a second magnetization direction in substantial opposition to the first magnetization direction is coupled to the nonmagnetic spacer layer. Further, the memory cell is programmable to a selected resistance state with application of a current to the recording structure.

Abstract translation: 一种在非易失性存储单元中的杂散磁场补偿的方法和装置，例如自旋转矩传递随机存取存储器（STRAM）。 在一些实施例中，第一隧道势垒耦合到具有垂直各向异性和第一磁化方向的参考结构。 具有垂直各向异性的记录结构耦合到第一隧道势垒和非磁性间隔层。 具有与第一磁化方向基本相对的垂直各向异性和第二磁化方向的补偿层耦合到非磁性间隔层。 此外，通过向记录结构施加电流，可将存储单元编程为选定的电阻状态。