Multilevel solution of augmented drift‐diffusion equations
ISSN: 0332-1649
Article publication date: 1 June 1996
Abstract
Develops a finite element analysis and solution strategy for the augmented drift‐diffusion equations in semiconductors device theory using a multilevel scheme. Decouples the drift‐diffusion equations using Gummel iteration with incremental continuation in the applied voltage. Includes augmentation of the carrier mobility to address the issue of non‐local electric field effects (velocity overshoot) within the framework of the drift‐diffusion formulation. Gives comparison results with hydrodynamic and Monte Carlo models and sensitivity studies with respect to the augmentation parameter. Discretizes the equations with a special finite element method using bases of variable polynomial degree. Accomplishes solution of the resulting linear systems with a multilevel method using the basis degree as the grid level. Presents performance results and comparison studies with direct elimination.
Keywords
Citation
Davis, M.B. and Carey, G.F. (1996), "Multilevel solution of augmented drift‐diffusion equations", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 15 No. 2, pp. 04-18. https://doi.org/10.1108/03321649610126439
Publisher
:MCB UP Ltd
Copyright © 1996, MCB UP Limited