For a III-V MOSFET, I declared four regions. They are oxide, channel, buffer and substrate. I want to solve self-consistent schrodinger-poisson (SP) only in the channel (or in the channel & in the buffer) region. For the complete potential profile, I want to solve non-linear poisson in the substrate region rather than SP, so that computational burden gets reduced. How can I setup in Atlas2D or in Atlas 3D?
The Schrodinger-Poisson equation is only solved within the area defined by the
special sp mesh, for example
spx.mesh loc=0.0 spac=0.05
spx.mesh loc=1.0 spac=0.05
spy.mesh loc=0.0 spac=0.1e-3
spy.mesh loc=20.e-3 spac=0.5e-3
if you set CARR=0 on the METHOD statement, then the nonlinear Poisson
equation will be solved elsewhere. I you use QSCV on a Voltage sweep
SOLVE statement, you get the quasistatic CV. Silvaco ATLAS can also
include quantum confinement effects into the carrier transport equations using the
BQP model or density gradient. Please refer to sections 13.2, 13.3 and 13.4 of the
ATLAS manual for more details. You could also try contacting your local Silvaco office, which I think would be Singapore.
The Schrodinger-Poisson equation is only solved within the area defined by the
special sp mesh, for example
spx.mesh loc=0.0 spac=0.05
spx.mesh loc=1.0 spac=0.05
spy.mesh loc=0.0 spac=0.1e-3
spy.mesh loc=20.e-3 spac=0.5e-3
if you set CARR=0 on the METHOD statement, then the nonlinear Poisson
equation will be solved elsewhere. I you use QSCV on a Voltage sweep
SOLVE statement, you get the quasistatic CV. Silvaco ATLAS can also
include quantum confinement effects into the carrier transport equations using the
BQP model or density gradient. Please refer to sections 13.2, 13.3 and 13.4 of the
ATLAS manual for more details. You could also try contacting your local Silvaco office, which I think would be Singapore.
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