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ATLAS User’s Manual
Table 3-18. User-Specifiable Parameters for Equations 3-147 and 3-148
Statement
Parameter
Default
Units
MOBILITY
MU1N.CAUG
55.24
cm2/(V ⋅ s)
MOBILITY
MU1P.CAUG
49.7
cm2/(V ⋅ s)
MOBILITY
MU2N.CAUG
1429.23
cm2/(V ⋅ s)
MOBILITY
MU2P.CAUG
479.37
cm2/(V ⋅ s)
MOBILITY
ALPHAN.CAUG
0.0
arbitrary
MOBILITY
ALPHAP.CAUG
0.0
arbitrary
MOBILITY
BETAN. CAUG
-2.3
arbitrary
MOBILITY
BETAP. CAUG
-2.2
arbitrary
MOBILITY
GAMMAN.CAUG
-3.8
arbitrary
MOBILITY
GAMMAP.CAUG
-3.7
arbitrary
MOBILITY
DELTAN.CAUG
0.73
arbitrary
MOBILITY
DELTAP.CAUG
0.70
arbitrary
MOBILITY
NCRITN.CAUG
1.072×1017
cm-3
MOBILITY
NCRITP.CAUG
1.606×1017
cm-3
The Arora Model for Low Field Mobility
Another analytic model for the doping and temperature dependence of the low field mobility is
available in ATLAS. This model, which is due to Arora [12], has the following form:
µ n0 =
µ p0
T L ALPHAN.ARORA
MU1N.ARORA  ----------
+
 300
T L BETAN.ARORA
 300
--------------------------------------------------------------------------------------------------------N
1 + ------------------------------------------------------------------------------------------------T L GAMMAN.ARORA
NCRITN . ARORA ⋅  ----------
 300
MU2N.ARORA  ----------
T BETAP.ARORA
L
MU2P.ARORA  ----------
T ALPHAP.ARORA


300
L


= MU1P.ARORA ---------+ ------------------------------------------------------------------------------------------------------------------------------------------------------ 300
N
1 + -------------------------------------------------------------------------------------------------------------------------------------------T GAMMAP.ARORA
L
NCRITP.ARORA Þ  ----------
 300
3-149
3-150
This model is used if CONMOB and ARORA are specified in the MODELS statement. The parameters of the
model are specified in the MOBILITY statement. The default parameters are for silicon at TL=300K.
3-38
SILVACO International