The Impact of High Dielectric Permittivity on SOI Double-Gate Mosfet Using Nextnano Simulator

Sensors & Transducers

Bouaza DJELLOULI¹  Samia SLIMANI¹ 

[1] Laboratoire de Modélisation et Méthodes de calcul LMMC, University of Saida, 20000, Algeria;

关键词: DG-MOSFET;    Quantum effects;    Nextnano3d;    Modeling;   

DOI  :  

来源: DOAJ

【 摘 要 】

Performance of high-k Double-Gate SOI MOSFETs is studied and compared to silicon dioxide based devices. This is achieved by computing variation of threshold voltage, swing subthreshold, leakage current and drain-induced barrier lowering (DIBL) with respect to different gate bias (VG) when gate length (LG) decreases. This comparison is pinpointed taking SiO2 and HfO2 as gate oxides. Furthermore, quantum effects on the performance of DG MOSFETs are discussed. It is observed that less EOT with high permittivity reduces the tunnel current and serves to maintain high drive current, when compared with device using SiO2 dielectric. Our results show that the characteristics of SOI Double Gate MOSFET with HfO2 are superior to that of a device with SiO2 dielectric.

【 授权许可】

Unknown