Method and system for providing a magnetic junction configured for precessional switching using a bias structure
    1.
    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
    3.
    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
    4.
    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
    6.
    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
    8.
    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。

    Method and system for providing dual magnetic tunneling junctions usable in spin transfer torque magnetic memories
    9.
    发明授权
    Method and system for providing dual magnetic tunneling junctions usable in spin transfer torque magnetic memories 有权
    用于提供可用于自旋转移转矩磁存储器中的双磁隧道结的方法和系统

    公开(公告)号:US08422285B2

    公开(公告)日:2013-04-16

    申请号:US13033021

    申请日:2011-02-23

    IPC分类号: G11C11/14

    摘要: A method and system for providing a magnetic junction usable in a magnetic memory are described. The magnetic junction includes first and second pinned layers, first and second nonmagnetic spacer layers, and a free layer. The pinned layers are nonmagnetic layer-free and self-pinned. In some aspects, the magnetic junction is configured to allow the free and second pinned layers to be switched between stable magnetic states when write currents are passed therethrough. The magnetic junction has greater than two stable states. In other aspects, the magnetic junction includes at least third and fourth spacer layers, a second free layer therebetween, and a third pinned layer having a pinned layer magnetic moment, being nonmagnetic layer-free, and being coupled to the second pinned layer. The magnetic junction is configured to allow the free layers to be switched between stable magnetic states when write currents are passed therethrough.

    摘要翻译: 描述了一种用于提供可用于磁存储器中的磁结的方法和系统。 磁结包括第一和第二固定层,第一和第二非磁性间隔层和自由层。 固定层是非磁性层,并且是自固定的。 在一些方面,磁结被配置为允许自由和第二被钉扎层在写入电流通过时在稳定的磁状态之间切换。 磁结有两个以上的稳定状态。 在其它方面,磁结包括至少第三和第四间隔层,在它们之间的第二自由层和具有固定层磁矩的第三被钉扎层是非磁性层,并且耦合到第二被钉扎层。 磁结被配置为允许当写入电流通过时自由层在稳定的磁状态之间切换。

    Magnetic junction elements having an easy cone anisotropy and a magnetic memory using such magnetic junction elements
    10.
    发明授权
    Magnetic junction elements having an easy cone anisotropy and a magnetic memory using such magnetic junction elements 有权
    具有易锥度各向异性的磁结元件和使用这种磁结元件的磁存储器

    公开(公告)号:US08399941B2

    公开(公告)日:2013-03-19

    申请号:US12940926

    申请日:2010-11-05

    IPC分类号: H01L29/82

    CPC分类号: G11C11/1675 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 free layer has an easy cone magnetic anisotropy. 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: 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。 自由层具有容易的锥形磁各向异性。 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。