A simulation based study of NC-FETs design: off-state versus on-state perspective

Abstract

This paper presents new analytical and numerical models aiming at a better insight about the physics and design of ferroelectric NC-FETs. We argue that a design focused on the off-state and targeting steep slope with negligible hysteresis is unlikely to be successful. A design targeting an enhanced on-state capacitance is instead more feasible, and can improve both sub-threshold swing and on-current. Also, NC-FETs can reduce the temperature sensitivity compared to baseline FETs, but the sensitivity to dielectrics thickness is critical.