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The Monte Carlo MESFET simulation

You can find the following example in the official ditribution of GNU Archimedes in the test/MESFET directory.

# Silicon MESFET test-1
# created on 22 sep.2004, J.M.Sellier
# modified on 09 oct.2004, J.M.Sellier
MATERIAL SILICON
TRANSPORT MC ELECTRONS
FINALTIME 5.5e-12
TIMESTEP 0.0015e-12
XLENGTH 0.6e-6
YLENGTH 0.2e-6
XSPATIALSTEP 96
YSPATIALSTEP 32
# Definition of the doping concentration
# ======================================
DONORDENSITY 0. 0. 0.6e-6 0.2e-6 1.e23
DONORDENSITY 0. 0.15e-6 0.1e-6 0.2e-6 5.e23
DONORDENSITY 0.5e-6 0.15e-6 0.6e-6 0.2e-6 5.e23
ACCEPTORDENSITY 0. 0. 0.6e-6 0.2e-6 1.e20
# Definition of the various contacts
# ==================================
CONTACT DOWN 0.0 0.6e-6 INSULATOR 0.0
CONTACT LEFT 0.0 0.2e-6 INSULATOR 0.0
CONTACT RIGHT 0.0 0.2e-6 INSULATOR 0.0
CONTACT UP 0.1e-6 0.2e-6 INSULATOR 0.0
CONTACT UP 0.4e-6 0.5e-6 INSULATOR 0.0
CONTACT UP 0.0 0.1e-6 OHMIC 0.0 5.e23
CONTACT UP 0.2e-6 0.4e-6 SCHOTTKY -0.8
CONTACT UP 0.5e-6 0.6e-6 OHMIC 1.0 5.e23
NOQUANTUMEFFECTS
MAXIMINI
# SAVEEACHSTEP
LATTICETEMPERATURE 300.
STATISTICALWEIGHT 1500
MEDIA 500
OUTPUTFORMAT GNUPLOT
# end of MESFET test-1

We report in the following pictures (8.1)-(8.5)the results obtained by GNU Archimedes release 0.0.4.

Figure: MESFET Density Profile computed by GNU Archimedes.

Figure: MESFET x-component velocity computed by GNU Archimedes.

Figure: MESFET y-component velocity computed by GNU Archimedes.

Figure: MESFET Electron Energy computed by GNU Archimedes.

Figure: MESFET Electrostatic Potential computed by GNU Archimedes.



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