  We numerically investigate the possibility of using Tunnel field-effect
transistor (TFET) in a 32 kHz crystal oscillator circuit to reduce power
consumption. A simulation using SPICE (Simulation Program with Integrated
Circuit Emphasis) is carried out based on a conventional CMOS transistor model.
It is shown that the power consumption of TFET is one-tenth that of
conventional low-power CMOS.
