Unity gain frequency on FinFET and TFET devices

Abstract

In this work the pTFET is evaluated from analog application point of view, through a direct comparison with the well-known pFinFET performance. This evaluation is mainly focused on the intrinsic voltage gain and the unity gain frequency. Although the total capacitance of FinFETs showed to be worse than for pTFETs, the transconductance behavior plays the main role and results in a higher unity gain frequency for pFinFET devices. However, if the high frequency is not necessary for the application, TFETs are a good candidate due to the huge intrinsic voltage gain enhancement.