analysis and modeling of subthreshold leakage of rt-components under ptv and state variation
In this work we present a SPICE-based RTL subthreshold-leakage model analyzing components built in 70 nm technology [1]. We present a separation approach regarding inter- and intra-die threshold variations, temperature, supply-voltage, and state dependence. The body-effect and differences between NMOS and PMOS introduce a leakage state dependence of one order of magnitude[2, 3]. We show that the leakage of RT-components still shows state dependencies between 20\% and $80\%. A leakage model not regarding the state can never be more accurate than this. The proposed state aware model has an average error of 6.7\% for the RT-components analyzed.
modeling leakage state dependence process variation