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This paper presents a new self-consistent multi-subband Monte Carlo (MSMC) simulator designed to investigate quasi-ballistic transport in nanoscale pMOSFETs. The simulator is 2-D in real space and k -space, and an accurate analytical model of the warped hole energy dispersion is adopted. The effects of the hole gas degeneracy are naturally included by accounting for the Pauli's exclusion principle. The simulator is implemented by resorting to original solutions for handling the hole-free flights consistently with the complicated energy dispersion. A detail description of the formulation of the scattering rates used in the simulator and a comparison to calculations based on a k middot p quantization model are given. Upon an appropriate calibration, the new MSMC tool can accurately reproduce the experimental data for low field mobility, and it can be used for the analysis of the semiballistic transport regime in …
Publication date: 
28 Jul 2009

Marco De Michielis, David Esseni, Pierpaolo Palestri, Luca Selmi

Biblio References: 
Volume: 56 Issue: 9 Pages: 2081-2091
IEEE transactions on electron devices