This directory contains two model scripts demonstrating alternative
approaches to including electric field effects.  The models
implemented simulate diffusion of two dopants (boron and arsenic)
using Fermi-level dependent diffusivities.  Complete activation is
assumed, and boundary conditions are ignored (all boundaries are
zero-flux).  The models, initial conditions, and processing
conditions are discussed in the reference below.

qn.pde
  Uses a quasi-neutral assumption to approximate potential.

poisson.pde
  Uses a poisson equation to solve for potential.


@ARTICLE{
jungling,
AUTHOR = "Werner J{\"{u}}ngling and Peter Pichler and Sigfried
 Selbeherr and Edgar Guerrero and Hans W. P{\"{o}}tzl",
TITLE = "Simulation of critical {IC} fabrication processes using
 advanced physical and numerical methods",
JOURNAL = IEEETED,
VOLUME = "ED-32",
NUMBER = 2,
YEAR = 1985,
MONTH = feb,
PAGES = "156--167"
}