A New Concept for Solving the Boltzmann Transport
Equation in Ultra-fast Transient Situations
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Published:1998-01-01
Issue:1-4
Volume:6
Page:217-222
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ISSN:1065-514X
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Container-title:VLSI Design
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language:en
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Short-container-title:VLSI Design
Affiliation:
1. Department of Electrical Engineering, University of New Orleans, New Orleans, Louisiana 70148, USA
Abstract
A concept based on relaxation of the hydrodynamic parameters is introduced to arrive at a
computational model for the extreme non-equilibrium distribution function of carriers in
multi-valley bandstructure. The relaxation times are taken to describe the evolution scale of
the distribution function. The developed model is able to account for transport phenomena at
the momentum relaxation scale. The model, together with the Monte Carlo simulation, is
applied to obtain the electron distribution function in each valley of the lower conduction
band in GaAs, and to study the evolution of the distribution function in GaAs subjected to
rapid changes in field.
Funder
National Natural Science Foundation of China
Publisher
Hindawi Limited
Subject
Electrical and Electronic Engineering,Computer Graphics and Computer-Aided Design,Hardware and Architecture