Device-level transient analysis of a 1 mu m six-transistor BiCMOS inverter circuit using a large-scale quasi-3D device simulator

The authors present a device-level study on the transient behavior of a 1- mu m six-transistor BiCMOS inverter circuit using a large-scale quasi-3-D device simulator, derived from PISCES-2B, in which layout information on each transistor and an efficient large-scale simulation capability have been added. According to simulation results, the speed performance of the BiCMOS inverter is determined by the charge transport in the base of the pull-up bipolar device, which is controlled by the circuit operating conditions set by the associated NMOS and PMOS devices.<>