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    • 8. 发明授权
    • Semiconductor integrated circuit device
    • 半导体集成电路器件
    • US07659772B2
    • 2010-02-09
    • US11813502
    • 2006-01-06
    • Masahiro NomuraKoichi Takeda
    • Masahiro NomuraKoichi Takeda
    • G05F1/10
    • H03K19/0008
    • A semiconductor integrated circuit device includes: a switching current observer for observing a switching current; a leakage current observer for observing a leakage current; a comparator which compares the switching current and the leakage current with each other; a threshold voltage controller for controlling a substrate bias voltage in order to make a ratio of the switching current and the leakage current constant; a delay observer for observing a delay amount; and a power supply voltage controller for controlling a power supply voltage in order to keep the delay amount in a predetermined range. In the semiconductor integrated circuit device, a process which enables the minimization of an operation power is carried out by controlling the threshold voltage to make the ratio of the switching current and the leakage current constant at a given clock frequency and controlling the power supply voltage to guarantee the operating speed.
    • 一种半导体集成电路器件,包括:用于观察开关电流的开关电流观察器; 用于观察泄漏电流的漏电流观测器; 将开关电流和漏电流进行比较的比较器; 用于控制衬底偏置电压以使开关电流和漏电流的比率恒定的阈值电压控制器; 用于观察延迟量的延迟观察器; 以及用于控制电源电压以便将延迟量保持在预定范围内的电源电压控制器。 在半导体集成电路器件中,通过控制阈值电压来实现能够最小化操作功率的处理,以使给定时钟频率下的开关电流和漏电流的比率恒定,并将电源电压控制为 保证运行速度。