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    • 9. 发明授权
    • Simple 4T static ram cell for low power CMOS applications
    • 用于低功耗CMOS应用的简单4T静态柱塞电池
    • US06614124B1
    • 2003-09-02
    • US09724083
    • 2000-11-28
    • Jeffrey Scott BrownChung Hon LamRandy William Mann
    • Jeffrey Scott BrownChung Hon LamRandy William Mann
    • H01L2711
    • G11C11/412H01L27/11
    • An SRAM memory cell device comprises wordline and bitline inputs for enabling read/write access to memory cell contents, and, a diffusion region for maintaining a voltage to preserve memory cell content when the cell is not being accessed. The device further comprises a transistor device having a gate input for receiving a wordline voltage to turn off the transistor device when not performing memory cell read/write access; and, a gate oxide layer formed under the transistor device gate exhibiting resistance property for leaking current therethrough when the wordline voltage is applied to the gate input and the transistor device is off. The diffusion region receives voltage derived from the wordline voltage applied to said gate input to enable retention of said memory cell content in the absence of applied bitline voltage to thereby reduce power consumption.
    • SRAM存储单元器件包括字线和位线输入,用于使得能够对存储单元内容进行读/写访问;以及扩散区,用于在不访问单元时保持电压以保持存储单元内容。 该器件还包括具有栅极输入的晶体管器件,用于在不执行存储器单元读/写访问时接收字线电压以截止晶体管器件; 以及当栅极电压施加到栅极输入并且晶体管器件截止时,形成在晶体管器件栅极下方的用于泄漏电流的电阻性能的栅极氧化层。 扩散区域接收从施加到所述栅极输入端的字线电压导出的电压,以便在没有施加的位线电压的情况下保持所述存储单元的内容从而降低功耗。