Detailled characterisation of SOI n-FinFETs at very low temperature

DC and low frequency noise measurements on strained and unstrained n-channel FinFET transistors processed on silicon on insulator (SOI) substrates were performed at 10 K in order to evaluate the device performances and study the low frequency noise mechanisms. The main electrical parameters are investigated and compared to those found at room temperature. The low frequency noise analysis shows that at 10 K, the carrier number fluctuations dominate the flicker noise in weak inversion, while the access resistance noise contributions prevails in strong inversion.