Title :
Analytical model for predicting subthreshold slope improvement versus negative swing of S-shape polarization in a ferroelectric FET
Author :
Rusu, Alexandru ; Ionescu, Adrian M.
Author_Institution :
Ecole Polytech. Fed. de Lausanne, Lausanne, Switzerland
Abstract :
In this paper we present and validate a model for predicting the inverse subthreshold slope, SS, improvement in a ferroelectric FET as a function of the negative swing (Landau´s α parameter), α=dP/dE of the polarization under negative capacitance operation. The model is experimentally validated at room temperature based on Fe-FET using a P(VDF-TrFE) copolymer as dielectric and showing sub-thermal swings over more than two orders of magnitude.
Keywords :
dielectric materials; ferroelectric devices; field effect transistors; polymer blends; P(VDF-TrFE) dielectric copolymer; S-shape polarization negative swing; ferroelectric FET; inverse subthreshold slope prediction model; negative capacitance operation; sub-thermal swings; temperature 293 K to 298 K; Analytical models; Capacitance; Electric potential; Logic gates; MOSFETs; Fe-FET; Negative capacitance; PVDF; ferroelectric; surface potential amplification;
Conference_Titel :
Mixed Design of Integrated Circuits and Systems (MIXDES), 2012 Proceedings of the 19th International Conference
Conference_Location :
Warsaw
Print_ISBN :
978-1-4577-2092-5
