Modeling of Floating-Body Effect in Silicon-on-Insulator Metal–Oxide–Silicon Field-Effect Transistor with Complete Surface-Potential-Based Description.

Autor: Murakami, Takahiro, Ando, Makoto, Sadachika, Norio, Yoshida, Takaki, Miura-Mattausch, Mitiko
Zdroj: Japanese Journal of Applied Physics; Apr2008, Vol. 47 Issue 4S, p1-1, 1p
Abstrakt: In this work, a silicon-on-insulator (SOI) metal–oxide–silicon field-effect transistor (MOSFET) model for circuit simulation is reported, which covers also the floating-body effect induced by the additional charge generated through impact ionization. The model is based on the complete surface-potential description and solves the Poisson equation with inclusion of the impact ionization. The developed compact SOI-MOSFET model is verified to reproduce two-dimensional-device simulation results very well, and shows the characteristic potential increase at the back side of the SOI layer. The steep drain-current (Ids) increase at high drain-voltages (Vds), caused by the floating-body effect, is also accurately captured. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index