1D physically based non-quasi-static analog behavioral BJT model for SPICE

A compact 1D non-quasi-static BJT model (NQS BJT) based on the analog behavioral modeling capabilities of the SPICE simulator is described. The NQS BJT model parameters are derived directly from the physical device structure. A momentum relaxation time parameter is also included as equivalent inductivity, yielding more accurate prediction of unity gain frequency and phase characteristics. The efficiency of the novel NQS model is demonstrated by comparison with the standard Gummel-Poon model and experimental results.