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New Developments and Old Problems in Grid Generation and Adaptation for TCAD Applications

Jens KRAUSE, Bernhard SCHMITHUSEN, Luis VILLABLANCA, Wolfgang FICHTNER

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Summary :

We present several challenging gridding problems for multi-dimensional device and process simulation and discuss how new strategies might contribute to their solution. Formulating grid quality requirements for the standard Scharfetter-Gummel box method discretization in device simulation, we demonstrate how the offsetting techniques compares with quadtree grid generation methods and how they apply to modern device designs. Further we present a grid adaptation approach which respects the grid quality criteria and touch upon the main adaptation difficulties within device simulation. For the 3D moving boundary grids in process simulation we present a new algorithm.

Publication
IEICE TRANSACTIONS on Electronics Vol.E83-C No.8 pp.1331-1337
Publication Date
2000/08/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section INVITED PAPER (Special Issue on 1999 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD'99))
Category
Numerics

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