Shift-register type memory and driving method thereof
    12.
    发明专利
    Shift-register type memory and driving method thereof 有权
    移位寄存器类型存储器及其驱动方法

    公开(公告)号:JP2013191692A

    公开(公告)日:2013-09-26

    申请号:JP2012056242

    申请日:2012-03-13

    Abstract: PROBLEM TO BE SOLVED: To provide a shift-register type memory in which current consumption can be suppressed low even if the elements are made finer.SOLUTION: The shift-register type memory includes a magnetic pillar having a plurality of magnetic layers, and a nonmagnetic layer provided between adjoining magnetic layers, and stores data according to the magnetization state of the plurality of magnetic layers. A stress application part applies a stress to the magnetic pillar. A magnetic field application part applies a static magnetic field to the magnetic pillar. The stress application part transfers the magnetization state of the plurality of magnetic layers in the lamination direction thereof, by applying a stress to the magnetic pillar.

    Abstract translation: 要解决的问题:提供一种移位寄存器型存储器,其中即使使元件更精细,也可以将电流消耗抑制得较低。解决方案:移位寄存器型存储器包括具有多个磁性层的磁柱和 提供在相邻磁性层之间的非磁性层,并且根据多个磁性层的磁化状态存储数据。 应力施加部分对磁柱施加应力。 磁场施加部分将静磁场施加到磁柱。 应力施加部件通过向磁性支柱施加应力来转移多个磁性层在其层叠方向上的磁化状态。

    Memory element and memory device
    13.
    发明专利
    Memory element and memory device 有权
    存储元件和存储器件

    公开(公告)号:JP2013115299A

    公开(公告)日:2013-06-10

    申请号:JP2011261520

    申请日:2011-11-30

    Abstract: PROBLEM TO BE SOLVED: To provide a memory element and a memory device which can perform a writing operation in a short time without causing writing error.SOLUTION: A memory element is constructed to include a layer structure having: a memory layer in which a magnetization direction is changed according to information; a magnetization fixed layer in which a magnetization direction is fixed; and an intermediate layer made of nonmagnetic material which is disposed between the memory layer and the magnetization fixed layer. In the magnetization fixed layer, at least two ferromagnetic layers are laminated with a coupling layer interposed therebetween. The two ferromagnetic layers are magnetically coupled to each other via the coupling layer. Each magnetization direction in the two ferromagnetic layers is inclined from a direction perpendicular to a film surface. Such a construction can effectively suppress divergence of a magnetization inversion time cased by magnetization directions being approximately parallel or antiparallel in the memory layer and the magnetization fixed layer, thereby decreasing writing error and performing a writing operation in a shorter time.

    Abstract translation: 要解决的问题:提供可以在短时间内执行写入操作而不引起写入错误的存储器元件和存储器件。 解决方案:存储元件被构造为包括具有:根据信息使磁化方向改变的存储层的层结构; 磁化固定层,其中磁化方向固定; 以及设置在存储层和磁化固定层之间的由非磁性材料制成的中间层。 在磁化固定层中,至少两层铁磁性层被层叠,其间夹有耦合层。 两个铁磁层通过耦合层彼此磁耦合。 两个铁磁层中的每个磁化方向从垂直于膜表面的方向倾斜。 这样的结构能够有效地抑制由存储层和磁化固定层中的大致平行或反平行的磁化方向带来的磁化反转时间的发散,从而减少写入误差并在较短的时间内执行写入操作。 版权所有(C)2013,JPO&INPIT

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