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    • 9. 发明授权
    • Memory array and memory device
    • 内存阵列和内存设备
    • US08350320B2
    • 2013-01-08
    • US13352652
    • 2012-01-18
    • Leonard Forbes
    • Leonard Forbes
    • H01L29/76H01L29/94H01L31/062H01L31/113H01L31/119
    • H01L29/66477G11C7/18G11C2207/002H01L27/10876
    • A memory array with staggered local data/bit lines extending generally in a first direction formed in an upper surface of a substrate and memory cell access transistors extending generally upward and aligned generally atop a corresponding local data/bit line. Selected columns of the memory cell access transistors are sacrificed to define local data/bit access transistors which are interconnected with overlying low resistance global data/bit lines. The global data/bit lines provide selectable low resistance paths between memory cells and sense amplifiers. The sacrificed memory cell access transistors and staggered local data/bit lines provide increased footprints for sense amplifiers to facilitate increased circuit integration.
    • 具有交错的本地数据/位线的存储器阵列,其大致沿着形成在衬底的上表面中的第一方向延伸,并且大体向上延伸并且大致对准相应的本地数据/位线的存储单元存取晶体管。 牺牲存储单元存取晶体管的选定列以定义与叠加的低电阻全局数据/位线互连的本地数据/位存取晶体管。 全局数据/位线在存储器单元和读出放大器之间提供可选择的低电阻路径。 牺牲的存储单元访问晶体管和交错的局部数据/位线为读出放大器提供了增加的占位面积,以便于增加电路集成。