Structure and method for BEOL nanoscale damascene sidewall-defined non-volatile memory element
    98.
    发明授权
    Structure and method for BEOL nanoscale damascene sidewall-defined non-volatile memory element 有权
    BEOL纳米级镶嵌侧壁定义非易失性存储元件的结构和方法

    公开(公告)号:US09583498B2

    公开(公告)日:2017-02-28

    申请号:US15193545

    申请日:2016-06-27

    Abstract: An exposed edge of a conductive liner in a Damascene trench provides a high aspect ratio geometry of a non-volatile memory cell that can be scaled to arbitrarily small and nanoscale areas and thus provides an extremely compact non-volatile memory array layout that is applicable to any non-volatile memory technology such as resistive memory (RRAM), magnetic memory (MRAM), phase change memory (PCRAM) and the like. The high aspect ratio of the non-volatile memory cell area offsets the sharp increase in filament forming voltage required in conductive bridge memories (CBRAMs) as the non-volatile memory cells are scaled to very small sizes. The compact memory cell layout is also tolerant of lithographic overlay errors and provides a high degree of uniformity of electrical characteristics which are tunable by maskless and non-lithographic processes.

    Abstract translation: 在大马士革沟槽中的导电衬垫的暴露边缘提供非易失性存储器单元的高纵横比几何形状,其可以缩放到任意小的和纳米尺度的区域,并且因此提供非常紧凑的非易失性存储器阵列布局,其适用于 诸如电阻存储器(RRAM),磁存储器(MRAM),相变存储器(PCRAM)等的任何非易失性存储器技术。 当非易失性存储器单元被缩放到非常小的尺寸时,非易失性存储单元区域的高纵横比抵消导电桥式存储器(CBRAM)中所需的灯丝形成电压的急剧增加。 紧凑的存储单元布局还容许光刻重叠误差,并且提供通过无掩模和非平版印刷工艺可调谐的电特性的高度均匀性。

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