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    Self-contained, path-level aging monitor apparatus and method
    1.
    发明授权
    Self-contained, path-level aging monitor apparatus and method 有权
    独立的路径级别老化监控装置和方法

    公开(公告)号：US09229054B2

    公开(公告)日：2016-01-05

    申请号：US13976931

    申请日：2011-09-28

    申请人： Keith A. Bowman ,  Carlos Tokunaga ,  James W. Tschanz

    发明人： Keith A. Bowman ,  Carlos Tokunaga ,  James W. Tschanz

    IPC分类号： G01R31/3187 ,  G01R31/317 ,  G01R31/3193 ,  G01R31/26 ,  G01R31/28 ,  G06F1/10

    CPC分类号： G01R31/31707 ,  G01R31/2642 ,  G01R31/2882 ,  G01R31/31725 ,  G01R31/31937 ,  G06F1/10

    摘要： An aging monitor circuit that provides a more accurate estimate of aging and/or delay in a circuit and/or circuit path. The aging monitor circuit employs a separate aging path with driving and receiving flip flops (FFs) and a tunable replica circuit (TRC) to enable measurements of single-transition DC-stressed path delay that only propagates through stressed transistors or other circuit element(s). A finite state machine (FSM) in the aging monitor circuit is configured to adjust a frequency of a clock signal output by a digitally controlled oscillator (DCO) in response to an error signal output by the receiving FF. The error signal is generated in response to single-transition DC-stressed path delay; and therefore enables the adjustment of the frequency of the dock signal to correspond to an amount or effect of the delay.

    摘要翻译： 一种老化监视电路，可以更准确地估计电路和/或电路路径中的老化和/或延迟。 老化监测电路采用单独的老化路径，具有驱动和接收触发器（FF）和可调谐复制电路（TRC），以便能够测量仅通过应力晶体管或其他电路元件传播的单跃迁DC应力路径延迟 ）。 老化监视电路中的有限状态机（FSM）被配置为响应于由接收FF输出的误差信号来调节由数字控制振荡器（DCO）输出的时钟信号的频率。 误差信号是响应单跃变直流应力路径延迟而产生的; 因此能够调整对接信号的频率以对应于延迟的量或效果。

    SELF-CONTAINED, PATH-LEVEL AGING MONITOR APPARATUS AND METHOD
    2.
    发明申请
    SELF-CONTAINED, PATH-LEVEL AGING MONITOR APPARATUS AND METHOD 有权
    自包含的路径老化监测装置和方法

    公开(公告)号：US20130285685A1

    公开(公告)日：2013-10-31

    申请号：US13976931

    申请日：2011-09-28

    申请人： Keith A. Bowman ,  Carlos Tokunaga ,  James W. Tschanz

    发明人： Keith A. Bowman ,  Carlos Tokunaga ,  James W. Tschanz

    IPC分类号： G01R31/317

    CPC分类号： G01R31/31707 ,  G01R31/2642 ,  G01R31/2882 ,  G01R31/31725 ,  G01R31/31937 ,  G06F1/10

    摘要： An aging monitor circuit that provides a more accurate estimate of aging and/or delay in a circuit and/or circuit path. The aging monitor circuit employs a separate aging path with driving and receiving flip flops (FFs) and a tunable replica circuit (TRC) to enable measurements of single-transition DC-stressed path delay that only propagates through stressed transistors or other circuit element(s). A finite state machine (FSM) in the aging monitor circuit is configured to adjust a frequency of a clock signal output by a digitally controlled oscillator (DCO) in response to an error signal output by the receiving FF. The error signal is generated in response to single transition DC-stressed path delay, and therefore enables the adjustment of the frequency of the clock signal to correspond to an amount or effect of the delay.

    摘要翻译： 一种老化监视电路，可以更准确地估计电路和/或电路路径中的老化和/或延迟。 老化监测电路采用单独的老化路径，具有驱动和接收触发器（FF）和可调谐复制电路（TRC），以实现仅通过应力晶体管或其他电路元件传播的单跃迁DC应力路径延迟的测量 ）。 老化监视电路中的有限状态机（FSM）被配置为响应于由接收FF输出的误差信号来调节由数字控制振荡器（DCO）输出的时钟信号的频率。 误差信号是响应于单个转变的直流应力路径延迟而产生的，因此能够调整时钟信号的频率以对应于延迟的量或影响。