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    • 10. 发明授权
    • Semiconductor memory
    • 半导体存储器
    • US07006379B2
    • 2006-02-28
    • US11068228
    • 2005-03-01
    • Mitsuhiro NoguchiAkira GodaYasuhiko Matsunaga
    • Mitsuhiro NoguchiAkira GodaYasuhiko Matsunaga
    • G11C16/04
    • G11C16/26G11C16/0483H01L27/115
    • A semiconductor memory including a memory cell unit, the memory cell unit comprising: a plurality of memory cells in which each conductance between current terminals changes according to held data, each having a plurality of current terminals connected in series between a first terminal and a second terminal, and each capable of electrically rewriting the data; a first select switching element electrically connecting said first terminal to a data transfer line; and a MISFET serving as a second select switching element connecting said second terminal to a reference potential line, wherein said semiconductor memory has a data read mode for forcing the first and second select switching elements of said memory cell unit into conduction, applying a read voltage for forcing a path between the current terminals into conduction or cut-off according to the data of a selected memory cell, to a control electrode of the selected memory cell, applying a pass voltage for forcing a path between the current terminals into conduction irrespectively of the data of each of the memory cells other than said selected memory cell, to the control electrode of each of the memory cells other than said selected memory cell, and detecting presence and absence or magnitude of a current between said data transfer line and said reference potential line, and in said data read mode, a conductance between current terminals of said MISFET is set lower than a conductance, in the case where the conductance between the current terminals is set to be the lowest, with regards to at least one of the memory cells other than said selected memory cell.
    • 一种包括存储单元单元的半导体存储器,所述存储单元单元包括:多个存储单元,其中当前端子之间的每个电导根据保持的数据而改变,每个存储单元具有串联连接在第一端子和第二端子之间的多个电流端子 终端,并且每个都能够电气地重写数据; 将所述第一端子电连接到数据传输线路的第一选择开关元件; 以及用作将所述第二端子连接到参考电位线的第二选择开关元件的MISFET,其中所述半导体存储器具有用于将所述存储单元单元的第一和第二选择开关元件强制为导通的数据读取模式,施加读取电压 用于根据所选择的存储单元的数据将当前端子之间的路径强制为导通或截止,到所选存储单元的控制电极,施加通过电压,以迫使当前端子之间的路径导通,而不管 除了所述选择的存储单元之外的每个存储单元的数据,还包括除了所选择的存储单元之外的每个存储单元的控制电极,以及检测所述数据传输线与所述参考电压之间的电流的存在和否定 电位线,并且在所述数据读取模式中,将所述MISFET的电流端子之间的电导设置为低于电导, 关于当前终端之间的电导被设置为最低的情况,关于除了所选择的存储单元之外的至少一个存储单元。