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    • 78. 发明授权
    • Voltage-switched magnetic random access memory (MRAM) and method for using the same
    • 电压开关磁随机存取存储器(MRAM)及其使用方法
    • US09443577B2
    • 2016-09-13
    • US14281673
    • 2014-05-19
    • Avalanche Technology Inc.
    • Zihui WangXiaobin WangHuadong GanYuchen ZhouYiming Huai
    • H01L29/82G11C11/56H01L43/08G11C11/16
    • G11C11/5607G11C11/161G11C11/165G11C11/1659G11C11/1675H01L27/228H01L43/08
    • The present invention is directed to a magnetic random access memory comprising a first magnetic tunnel junction (MTJ) including a first magnetic reference layer and a first magnetic free layer with a first insulating tunnel junction layer interposed therebetween; a second MTJ including a second magnetic reference layer and a second magnetic free layer with a second insulating tunnel junction layer interposed therebetween; and an anti-ferromagnetic coupling layer formed between the first and second variable magnetic free layers. The first and second magnetic free layers have a first and second magnetization directions, respectively, that are perpendicular to the layer planes thereof. The first magnetic reference layer has a first pseudo-fixed magnetization direction substantially perpendicular to the layer plane thereof. The second magnetic reference layer has a second pseudo-fixed magnetization direction that is substantially perpendicular to the layer plane thereof and is substantially opposite to the first pseudo-fixed magnetization direction.
    • 本发明涉及一种包括第一磁性隧道结(MTJ)的磁性随机存取存储器,其包括第一磁性参考层和介于其间的第一绝缘隧道结层的第一磁性自由层; 第二MTJ,包括第二磁性参考层和第二磁性自由层,其间插入有第二绝缘隧道结层; 以及形成在第一和第二可变磁性层之间的反铁磁耦合层。 第一和第二无磁性层分别具有垂直于其层平面的第一和第二磁化方向。 第一磁性参考层具有基本上垂直于其层平面的第一伪固定磁化方向。 第二磁参考层具有基本上垂直于其层平面并与第一伪固定磁化方向基本相反的第二伪固定磁化方向。