-
公开(公告)号:US20120250405A1
公开(公告)日:2012-10-04
申请号:US13491891
申请日:2012-06-08
申请人: Xiaobin Wang , Haiwen Xi , Hongyue Liu , Insik Jin , Andreas Roelofs , Eileen Yan , Dimitar V. Dimitrov
发明人: Xiaobin Wang , Haiwen Xi , Hongyue Liu , Insik Jin , Andreas Roelofs , Eileen Yan , Dimitar V. Dimitrov
CPC分类号: G11C11/1675 , G11C11/1659
摘要: Memory units that have a magnetic tunnel junction cell that utilizes spin torque and a current induced magnetic field to assist in the switching of the magnetization orientation of the free layer of the magnetic tunnel junction cell. The memory unit includes a spin torque current source for passing a current through the magnetic tunnel junction cell, the spin torque current source having a direction perpendicular to the magnetization orientations, and also includes a magnetic ampere field current source is oriented in a direction orthogonal or at some angles to the magnetization orientations.
摘要翻译: 具有磁隧道结电池的存储单元,其利用自旋转矩和电流感应磁场来辅助磁性隧道结电池自由层的磁化取向的切换。 存储单元包括用于使电流通过磁性隧道结单元的自旋转矩电流源,该自旋转矩电流源具有与磁化方位垂直的方向,并且还包括磁安培励磁电流源在正交或 与磁化方向成一定角度。
-
公开(公告)号:US20100034008A1
公开(公告)日:2010-02-11
申请号:US12199126
申请日:2008-08-27
申请人: Xiaobin Wang , Haiwen Xi , Hongyue Liu , Insik Jin , Andreas Roelofs , Eileen Yan , Dimitar V. Dimitrov
发明人: Xiaobin Wang , Haiwen Xi , Hongyue Liu , Insik Jin , Andreas Roelofs , Eileen Yan , Dimitar V. Dimitrov
IPC分类号: G11C11/22
CPC分类号: G11C11/1675 , G11C11/1659
摘要: Memory units that have a magnetic tunnel junction cell that utilizes spin torque and a current induced magnetic field to assist in the switching of the magnetization orientation of the free layer of the magnetic tunnel junction cell. The memory unit includes a spin torque current source for passing a current through the magnetic tunnel junction cell, the spin torque current source having a direction perpendicular to the magnetization orientations, and also includes a magnetic ampere field current source is oriented in a direction orthogonal or at some angles to the magnetization orientations.
摘要翻译: 具有磁隧道结电池的存储单元,其利用自旋转矩和电流感应磁场来辅助磁性隧道结电池自由层的磁化取向的切换。 存储单元包括用于使电流通过磁性隧道结单元的自旋转矩电流源,该自旋转矩电流源具有与磁化方位垂直的方向,并且还包括磁安培励磁电流源在正交或 与磁化方向成一定角度。
-
公开(公告)号:US08482967B2
公开(公告)日:2013-07-09
申请号:US12938424
申请日:2010-11-03
申请人: Haiwen Xi , Yuankai Zheng , Xiaobin Wang , Dimitar V. Dimitrov , Pat J. Ryan
发明人: Haiwen Xi , Yuankai Zheng , Xiaobin Wang , Dimitar V. Dimitrov , Pat J. Ryan
CPC分类号: H01L43/02 , G11C11/161 , G11C11/1659 , G11C11/1675 , H01L27/228
摘要: An apparatus and method for enhancing data writing and retention to a magnetic memory element, such as in a non-volatile data storage array. In accordance with various embodiments, a programmable memory element has a reference layer and a storage layer. The reference layer is provided with a fixed magnetic orientation. The storage layer is programmed to have a first region with a magnetic orientation antiparallel to said fixed magnetic orientation, and a second region with a magnetic orientation parallel to said fixed magnetic orientation. A thermal assist layer may be incorporated into the memory element to enhance localized heating of the storage layer to aid in the transition of the first region from parallel to antiparallel magnetic orientation during a write operation.
摘要翻译: 一种用于增强对诸如非易失性数据存储阵列中的磁存储元件的数据写入和保持的装置和方法。 根据各种实施例,可编程存储元件具有参考层和存储层。 参考层具有固定的磁性取向。 存储层被编程为具有与所述固定磁性取向反平行的磁性取向的第一区域和具有与所述固定磁性取向平行的磁性取向的第二区域。 可以将热辅助层结合到存储元件中以增强存储层的局部加热,以帮助在写入操作期间第一区域从平行转变为反平行磁取向。
-
公开(公告)号:US20120299135A1
公开(公告)日:2012-11-29
申请号:US13568409
申请日:2012-08-07
申请人: Yuankai Zheng , Dimitar V. Dimitrov , Dexin Wang , Haiwen Xi , Xiaobin Wang , Wei Tian , Xiaohua Lou
发明人: Yuankai Zheng , Dimitar V. Dimitrov , Dexin Wang , Haiwen Xi , Xiaobin Wang , Wei Tian , Xiaohua Lou
IPC分类号: H01L29/82
CPC分类号: G11C11/161
摘要: An apparatus that includes a magnetic structure including a reference layer; and a free layer; an exchange coupling spacer layer; and a stabilizing layer, wherein the exchange coupling spacer layer is between the magnetic structure and the stabilizing layer and exchange couples the free layer of the magnetic structure to the stabilizing layer.
摘要翻译: 一种包括具有参考层的磁性结构的装置; 和自由层; 交换耦合间隔层; 和稳定层,其中所述交换耦合间隔层位于所述磁性结构和所述稳定层之间并且将所述磁性结构的自由层与所述稳定层交换。
-
公开(公告)号:US20120120708A1
公开(公告)日:2012-05-17
申请号:US12946900
申请日:2010-11-16
申请人: Insik Jin , Xiaobin Wang , Yong Lu , Haiwen Xi
发明人: Insik Jin , Xiaobin Wang , Yong Lu , Haiwen Xi
CPC分类号: G11C11/161 , G11C11/1673 , G11C11/1675 , H01F10/3254 , H01F10/3259 , H01F10/3286 , H01L43/08
摘要: A method of switching the magnetization orientation of a ferromagnetic free layer of an out-of-plane magnetic tunnel junction cell, the method including: passing an AC switching current through the out-of-plane magnetic tunnel junction cell, wherein the AC switching current switches the magnetization orientation of the ferromagnetic free layer.
摘要翻译: 一种切换面外磁性隧道结电池的铁磁自由层的磁化取向的方法,该方法包括:使交流开关电流通过面外磁性隧道结电池,其中交流开关电流 切换铁磁自由层的磁化方向。
-
公开(公告)号:US20120106239A1
公开(公告)日:2012-05-03
申请号:US12938424
申请日:2010-11-03
申请人: Haiwen Xi , Yuankai Zheng , Xiaobin Wang , Dimitar V. Dimitrov , Pat J. Ryan
发明人: Haiwen Xi , Yuankai Zheng , Xiaobin Wang , Dimitar V. Dimitrov , Pat J. Ryan
CPC分类号: H01L43/02 , G11C11/161 , G11C11/1659 , G11C11/1675 , H01L27/228
摘要: An apparatus and method for enhancing data writing and retention to a magnetic memory element, such as in a non-volatile data storage array. In accordance with various embodiments, a programmable memory element has a reference layer and a storage layer. The reference layer is provided with a fixed magnetic orientation. The storage layer is programmed to have a first region with a magnetic orientation antiparallel to said fixed magnetic orientation, and a second region with a magnetic orientation parallel to said fixed magnetic orientation. A thermal assist layer may be incorporated into the memory element to enhance localized heating of the storage layer to aid in the transition of the first region from parallel to antiparallel magnetic orientation during a write operation.
摘要翻译: 一种用于增强对诸如非易失性数据存储阵列中的磁存储元件的数据写入和保持的装置和方法。 根据各种实施例,可编程存储元件具有参考层和存储层。 参考层具有固定的磁性取向。 存储层被编程为具有与所述固定磁性取向反平行的磁性取向的第一区域和具有与所述固定磁性取向平行的磁性取向的第二区域。 可以将热辅助层结合到存储元件中以增强存储层的局部加热,以帮助在写入操作期间第一区域从平行转变为反平行磁取向。
-
47.
公开(公告)号:US08054678B2
公开(公告)日:2011-11-08
申请号:US12900303
申请日:2010-10-07
申请人: Alan Xuguang Wang , Xiaobin Wang , Dimitar V. Dimitrov , Hai Li , Haiwen Xi , Harry Hongyue Liu
发明人: Alan Xuguang Wang , Xiaobin Wang , Dimitar V. Dimitrov , Hai Li , Haiwen Xi , Harry Hongyue Liu
IPC分类号: G11C11/00
CPC分类号: G11C29/50 , G11C11/1659 , G11C11/1675 , G11C11/1677 , G11C11/1695 , G11C11/1697
摘要: A method and apparatus for repairing a stuck-at defect condition in a non-volatile memory cell, such as a spin-torque transfer random access memory (STRAM). In some embodiments, a resistive sense element has a magnetic tunneling junction (MTJ) and a repair plane located adjacent to the resistive sense element. The repair plane injects a magnetic field in the MTJ to repair a stuck-at defect condition.
摘要翻译: 一种用于修复诸如自旋转矩传递随机存取存储器(STRAM)的非易失性存储单元中的卡入缺陷状况的方法和装置。 在一些实施例中,电阻感测元件具有磁性隧道结(MTJ)和位于电阻感测元件附近的修复平面。 修复平面在MTJ中注入磁场以修复卡住的缺陷状况。
-
公开(公告)号:US20100073984A1
公开(公告)日:2010-03-25
申请号:US12233760
申请日:2008-09-19
申请人: Haiwen Xi , Dimitar V. Dimitrov , Andreas Roelofs , Xiaobin Wang , Paul E. Anderson , Hongyue Liu
发明人: Haiwen Xi , Dimitar V. Dimitrov , Andreas Roelofs , Xiaobin Wang , Paul E. Anderson , Hongyue Liu
IPC分类号: G11C19/00
CPC分类号: G11C19/0841 , G11C11/14
摘要: A register having a track with a first electrode is at the first end to supply a current to the track in a first direction and a second electrode at the second end to supply a current to the track in a second direction, the second direction being opposite to the first direction. A first domain wall anchor and a second domain wall anchor are positioned proximate the track between the first electrode and the second electrode. Each of the domain wall anchors has a ferromagnetic pinned layer and a barrier layer proximate the track, with the barrier layer between the track and the ferromagnetic pinned layer. The ferromagnetic layer has a magnetization orientation pinned perpendicular to the magnetization orientation of the track.
摘要翻译: 具有带有第一电极的轨道的寄存器处于第一端,以沿第一方向向轨道提供电流,而第二端处的第二电极在第二方向上向轨道提供电流,第二方向相反 到第一个方向。 第一结构域壁锚和第二结构域锚固件位于第一电极和第二电极之间的轨道附近。 每个畴壁锚固件具有铁磁钉扎层和靠近轨道的阻挡层,阻挡层在轨道和铁磁性钉扎层之间。 铁磁层具有垂直于轨道的磁化取向钉扎的磁化取向。
-
公开(公告)号:US08508973B2
公开(公告)日:2013-08-13
申请号:US12946900
申请日:2010-11-16
申请人: Insik Jin , Xiaobin Wang , Yong Lu , Haiwen Xi
发明人: Insik Jin , Xiaobin Wang , Yong Lu , Haiwen Xi
IPC分类号: G11C11/22
CPC分类号: G11C11/161 , G11C11/1673 , G11C11/1675 , H01F10/3254 , H01F10/3259 , H01F10/3286 , H01L43/08
摘要: A method of switching the magnetization orientation of a ferromagnetic free layer of an out-of-plane magnetic tunnel junction cell, the method including: passing an AC switching current through the out-of-plane magnetic tunnel junction cell, wherein the AC switching current switches the magnetization orientation of the ferromagnetic free layer.
摘要翻译: 一种切换面外磁性隧道结电池的铁磁自由层的磁化取向的方法,该方法包括:使交流开关电流通过面外磁性隧道结电池,其中交流开关电流 切换铁磁自由层的磁化方向。
-
公开(公告)号:US07876595B2
公开(公告)日:2011-01-25
申请号:US12233760
申请日:2008-09-19
申请人: Haiwen Xi , Dimitar V. Dimitrov , Andreas Roelofs , Xiaobin Wang , Paul E Anderson , Hongyue Liu
发明人: Haiwen Xi , Dimitar V. Dimitrov , Andreas Roelofs , Xiaobin Wang , Paul E Anderson , Hongyue Liu
IPC分类号: G11C19/00
CPC分类号: G11C19/0841 , G11C11/14
摘要: A register having a track with a first electrode is at the first end to supply a current to the track in a first direction and a second electrode at the second end to supply a current to the track in a second direction, the second direction being opposite to the first direction. A first domain wall anchor and a second domain wall anchor are positioned proximate the track between the first electrode and the second electrode. Each of the domain wall anchors has a ferromagnetic pinned layer and a barrier layer proximate the track, with the barrier layer between the track and the ferromagnetic pinned layer. The ferromagnetic layer has a magnetization orientation pinned perpendicular to the magnetization orientation of the track.
摘要翻译: 具有带有第一电极的轨道的寄存器处于第一端,以沿第一方向向轨道提供电流,而第二端处的第二电极在第二方向上向轨道提供电流,第二方向相反 到第一个方向。 第一结构域壁锚和第二结构域锚固件位于第一电极和第二电极之间的轨道附近。 每个畴壁锚固件具有铁磁钉扎层和靠近轨道的阻挡层,阻挡层在轨道和铁磁性钉扎层之间。 铁磁层具有垂直于轨道的磁化取向钉扎的磁化取向。
-
-
-
-
-
-
-
-
-