Method and system for providing a spin transfer device with improved switching characteristics
    1.
    发明授权
    Method and system for providing a spin transfer device with improved switching characteristics 有权
    提供具有改进的开关特性的自旋转移装置的方法和系统

    公开(公告)号:US07486552B2

    公开(公告)日:2009-02-03

    申请号:US11763800

    申请日:2007-06-15

    IPC分类号: G11C11/15

    CPC分类号: G11C11/1675 G11C11/161

    摘要: A method and system for providing a magnetic element is described. The magnetic element includes a first pinned layer, a first spacer layer, a free layer, a second spacer layer, and a second pinned layer. The first and second pinned layers have first and magnetizations oriented in first and second directions, respectively. The first and second spacer layers are nonferromagnetic. The first and second spacer layers are between the free layer and the first and second pinned layers, respectively. The magnetic element is configured either to allow the free layer to be switched to each of multiple states when both a unidirectional write current is passed through the magnetic element and the magnetic element is subjected to a magnetic field corresponding to the each states or to allow the free layer to be switched to each of the plurality of states utilizing a write current and an additional magnetic field that is applied from at least one of the first pinned layer and the second pinned layer substantially only if the write current is also applied.

    摘要翻译: 描述了一种用于提供磁性元件的方法和系统。 磁性元件包括第一固定层,第一间隔层,自由层,第二间隔层和第二固定层。 第一和第二固定层分别具有在第一和第二方向上取向的第一和第二磁化。 第一和第二间隔层是非铁磁性的。 第一和第二间隔层分别位于自由层和第一和第二钉扎层之间。 磁元件被配置为允许当单向写入电流通过磁性元件并且磁性元件经受对应于每个状态的磁场时,自由层被切换到多个状态中的每一个状态,或者允许 利用写入电流和从第一被钉扎层和第二被钉扎层中的至少一个施加的附加磁场,基本上仅在写入电流也被施加时,自由层被切换到多个状态中的每一个状态。

    METHOD AND SYSTEM FOR PROVIDING A SPIN TRANSFER DEVICE WITH IMPROVED SWITCHING CHARACTERISTICS
    2.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING A SPIN TRANSFER DEVICE WITH IMPROVED SWITCHING CHARACTERISTICS 有权
    用于提供具有改进的切换特性的转子装置的方法和系统

    公开(公告)号:US20080291721A1

    公开(公告)日:2008-11-27

    申请号:US11763800

    申请日:2007-06-15

    IPC分类号: G11C11/15

    CPC分类号: G11C11/1675 G11C11/161

    摘要: A method and system for providing a magnetic element is described. The magnetic element includes a first pinned layer, a first spacer layer, a free layer, a second spacer layer, and a second pinned layer. The first and second pinned layers have first and magnetizations oriented in first and second directions, respectively. The first and second spacer layers are nonferromagnetic. The first and second spacer layers are between the free layer and the first and second pinned layers, respectively. The magnetic element is configured either to allow the free layer to be switched to each of multiple states when both a unidirectional write current is passed through the magnetic element and the magnetic element is subjected to a magnetic field corresponding to the each states or to allow the free layer to be switched to each of the plurality of states utilizing a write current and an additional magnetic field that is applied from at least one of the first pinned layer and the second pinned layer substantially only if the write current is also applied.

    摘要翻译: 描述了一种用于提供磁性元件的方法和系统。 磁性元件包括第一固定层,第一间隔层,自由层,第二间隔层和第二固定层。 第一和第二固定层分别具有在第一和第二方向上取向的第一和第二磁化。 第一和第二间隔层是非铁磁性的。 第一和第二间隔层分别位于自由层和第一和第二钉扎层之间。 磁元件被配置为允许当单向写入电流通过磁性元件并且磁性元件经受对应于每个状态的磁场时,自由层被切换到多个状态中的每一个状态,或者允许 利用写入电流和从第一被钉扎层和第二被钉扎层中的至少一个施加的附加磁场,基本上仅在写入电流也被施加时,自由层被切换到多个状态中的每一个状态。

    Method and system for providing a magnetic junction configured for precessional switching using a bias structure
    3.
    发明授权
    Method and system for providing a magnetic junction configured for precessional switching using a bias structure 有权
    用于提供使用偏置结构配置为进动切换的磁结的方法和系统

    公开(公告)号:US09142758B2

    公开(公告)日:2015-09-22

    申请号:US13495830

    申请日:2012-06-13

    IPC分类号: G11C11/16 H01L43/08 H01L27/22

    摘要: A method and system provide a magnetic junction usable in a magnetic device. The magnetic junction includes a first pinned layer having a first pinned layer magnetization, a first nonmagnetic spacer layer, and a free layer having an easy axis. The first nonmagnetic spacer layer is between the first pinned layer and the free layer. 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 and such that the free layer employs precessional switching.

    摘要翻译: 一种方法和系统提供可用于磁性装置的磁结。 磁结包括具有第一固定层磁化的第一被钉扎层,第一非磁性间隔层和具有易轴的自由层。 第一非磁性间隔层位于第一被钉扎层和自由层之间。 磁结被配置为使得当写入电流通过磁结并且使得自由层采用进动切换时,自由层可在多个稳定磁状态之间切换。

    METHOD AND SYSTEM FOR PROVIDING MULTIPLE SELF-ALIGNED LOGIC CELLS IN A SINGLE STACK
    5.
    发明申请
    METHOD AND SYSTEM FOR PROVIDING MULTIPLE SELF-ALIGNED LOGIC CELLS IN A SINGLE STACK 有权
    在单堆栈中提供多个自对准逻辑单元的方法和系统

    公开(公告)号:US20150200357A1

    公开(公告)日:2015-07-16

    申请号:US13604182

    申请日:2012-09-05

    IPC分类号: H01L43/12 H01L43/08 H01L43/02

    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 a graded magnetic free layer
    6.
    发明授权
    Method and system for providing magnetic junctions having a graded magnetic free layer 有权
    用于提供具有渐变磁性层的磁结的方法和系统

    公开(公告)号:US08890267B2

    公开(公告)日:2014-11-18

    申请号:US13691873

    申请日:2012-12-03

    IPC分类号: H01L27/22 H01L43/08 G11C11/16

    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, and a free layer. The nonmagnetic spacer layer is between the pinned layer and the free layer. The free layer has a gradient in a critical switching current density (Jc0) such that a first Jc0 of a first portion of the free layer is lower than a second Jc0 of a second portion of the free layer. The second portion of the free layer is further from the nonmagnetic spacer layer than the first portion is. 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,非磁性间隔层和自由层。 非磁性间隔层位于被钉扎层和自由层之间。 自由层具有临界开关电流密度(Jc0)的梯度,使得自由层的第一部分的第一Jc0低于自由层的第二部分的第二部分Jc0。 自由层的第二部分比第一部分更远离非磁性间隔层。 磁结被配置为使得当写入电流通过磁结时,自由层可在多个稳定磁状态之间切换。

    Magnetic memory including magnetic memory cells integrated with a magnetic shift register and methods thereof
    8.
    发明授权
    Magnetic memory including magnetic memory cells integrated with a magnetic shift register and methods thereof 有权
    磁存储器包括与磁移位寄存器集成的磁存储单元及其方法

    公开(公告)号:US08649214B2

    公开(公告)日:2014-02-11

    申请号:US13332230

    申请日:2011-12-20

    IPC分类号: G11C11/15

    摘要: A magnetic memory includes magnetic memory elements corresponding to magnetic memory cells and at least one shift register. Each magnetic memory element includes a pinned layer, a free layer, and a nonmagnetic spacer layer between the pinned and free layers. The free layer is switchable between stable magnetic states when a write current is passed through the magnetic memory element. The shift register(s) correspond to the magnetic memory elements. Each shift register includes domains separated by domain walls. A domain is antiparallel to an adjoining domain. The shift register(s) are configured such that an equilibrium state aligns a portion of the domains with the magnetic memory elements. The shift register(s) are also configured such that each domain wall shifts to a location of an adjoining domain wall when a shift current is passed through the shift register(s) in a direction along adjoining domains.

    摘要翻译: 磁存储器包括对应于磁存储器单元和至少一个移位寄存器的磁存储元件。 每个磁存储元件包括被钉扎层,自由层和在钉扎层和自由层之间的非磁性间隔层。 当写入电流通过磁存储元件时,自由层可在稳定磁状态之间切换。 移位寄存器对应于磁存储元件。 每个移位寄存器包括由畴壁分隔的域。 一个域与相邻域反向并行。 移位寄存器被配置为使得平衡状态将磁畴的一部分与磁存储元件对准。 移位寄存器还被配置为使得当移位电流沿着相邻域的方向通过移位寄存器时,每个域壁移动到相邻畴壁的位置。

    Method and system for providing magnetic layers having insertion layers for use in spin transfer torque memories
    10.
    发明授权
    Method and system for providing magnetic layers having insertion layers for use in spin transfer torque memories 有权
    用于提供具有用于自旋转移转矩存储器中的插入层的磁性层的方法和系统

    公开(公告)号:US08432009B2

    公开(公告)日:2013-04-30

    申请号:US13011849

    申请日:2011-01-21

    IPC分类号: H01L29/82

    CPC分类号: H01L43/08 G11C11/161

    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 nonmagnetic spacer layer, and a free layer. The nonmagnetic spacer layer is between the pinned layer and the free layer. 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. At least one of the pinned layer and the free layer includes a magnetic substructure. The magnetic substructure includes at least two magnetic layers interleaved with at least one insertion layer. Each insertion layer includes at least one of Cr, Ta, Ti, W, Ru, V, Cu, Mg, aluminum oxide, and MgO. The magnetic layers are exchange coupled.

    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,非磁性间隔层和自由层。 非磁性间隔层位于被钉扎层和自由层之间。 磁结被配置为使得当写入电流通过磁结时,自由层可在多个稳定磁状态之间切换。 被钉扎层和自由层中的至少一个包括磁性子结构。 磁性子结构包括与至少一个插入层交错的至少两个磁性层。 每个插入层包括Cr,Ta,Ti,W,Ru,V,Cu,Mg,氧化铝和MgO中的至少一种。 磁层交换耦合。