First self-consistent thermal electron- phonon simulator
D. Vasileska, K. Raleva, S.M. Goodnick
Arizona State University, US
lattice heating, FD-SOI devices, Monte Carlo methods
We have developed the first self-consistent thermal electron-phonon simulator which solves the Boltzmann transport equation for the electrons and the energy balance equations for phonons, and as such allows us to make realistic estimates on the on-current degradation in FD-SOI devices with SIO2 and high-k dielectrics as gate oxides. For the first time we present a detailed study on the influence of lattice heating on the on-current for different generations of FD-SOI devices. Non-scationary transport (velocity overshoot) present in the smallest structures being investigated is responsible for the smaller thermal degradation in the smallest geometry device structures being considered.
Nanotech 2008 Conference Program Abstract