In nanometer scale CMOS technologies, static power consumption will be the major component of the overall power consumption. Static power has been rapidly growing as technologies have scaled supply voltage VDD and threshold voltage Vth down to maintain drive current and reduce dynamic power consumption, at the cost of an exponential increase in transistor leakage currents. Static power can be as much as 20% of the power budget of current high-end microprocessors, and this will likely increase as future technologies continue to reduce Vth.
