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  What is Temp Inversion? As the temperature increases, the delay of the cell can Decrease due to decrease in threshold voltage (Vt). Increase due to decrease in the mobility. The dominating impacts of mobility and threshold voltage (Vt) determine the ensuing thermal trend associated with temperature inversion effects, which can cause a cell's delay to either increase or decrease. The threshold voltage drop brought on by temperature change is minimal if the gate overdrive voltage (Vdd - Vt) is high. However, the mobility effect predominates, which causes the gate's delay to increase as the temperature rises. But, if Gate overdrive voltage (Vdd - Vt) has reduced such that the decrease in threshold voltage effect dominates and delay decreases with the increases in temperature.  below nodes, the threshold voltage (Vt) has not been reduced much but the supply voltages has reduced considerably to cater low leakage power concerns. The result is that the gate overdrive voltage (Vdd -...