arnoli
Newbie level 3
Any one can help me to debug what's the problems of the mixedmode in silvaco simulation?
following are detial mixed mode program:
go atlas
.BEGIN
Vin 1 0 2.8
A1 1=gate 2=drain 0=source 0=FP1 0=substrate infile=LDMOS.str width=1.0e5
Cin 1 0 80pF
Vout 2 0 28
#
.MODEL A1 nmos is=1.e-17 bf=100 cje=1f tf=5ps cjc=0.3f rb=100 \
rbm=20
.nodeset v(1)=2.8 v(2)=28
.numeric VCHANGE=0.25 IMAXDC=50
.options m2ln print
.save outfile=LDMOS_DC
.END
#
#
# RFLDMOS - trans simulation
#
go atlas
.BEGIN
Vin 1 0 2.8 pulse 0 2.8 0 1ns 1ns 40ns 80ns
A1 1=gate 2=drain 0=source 0=FP1 0=substrate infile=LDMOS.str width=1.0e5
Cin 1 0 80pF
Vout 2 0 28
#
.model A1 nmos is=1.e-17 bf=100 cje=1f tf=5ps cjc=0.3f rb=100 \
rbm=20
.options print
#.NET V1 V2 DEC 10 9.2e8 9.6e8 Z0=50
.log outfile=LDMOS_trans
.load infile=LDMOS_DC
.tran 1ns 500ns
.END
#
# Atlas models
#
MODELS DEVICE=A1 mos
IMPACT DEVICE=A1 REG=1 SELB
METHOD CLIM.DD=1e4 DVMAX=1e6
go atlas
tonyplot LDMOS_trans_tr.log
quit
##################
I don't konw no log file and include some warning :1,Solution does not converge to given accuracy, taking smaller bias step. Bias sted reduced 1 times
2,Mesh specification is not complete. No Output is possible 25
any one can help me ,thank you very much
following are detial mixed mode program:
go atlas
.BEGIN
Vin 1 0 2.8
A1 1=gate 2=drain 0=source 0=FP1 0=substrate infile=LDMOS.str width=1.0e5
Cin 1 0 80pF
Vout 2 0 28
#
.MODEL A1 nmos is=1.e-17 bf=100 cje=1f tf=5ps cjc=0.3f rb=100 \
rbm=20
.nodeset v(1)=2.8 v(2)=28
.numeric VCHANGE=0.25 IMAXDC=50
.options m2ln print
.save outfile=LDMOS_DC
.END
#
#
# RFLDMOS - trans simulation
#
go atlas
.BEGIN
Vin 1 0 2.8 pulse 0 2.8 0 1ns 1ns 40ns 80ns
A1 1=gate 2=drain 0=source 0=FP1 0=substrate infile=LDMOS.str width=1.0e5
Cin 1 0 80pF
Vout 2 0 28
#
.model A1 nmos is=1.e-17 bf=100 cje=1f tf=5ps cjc=0.3f rb=100 \
rbm=20
.options print
#.NET V1 V2 DEC 10 9.2e8 9.6e8 Z0=50
.log outfile=LDMOS_trans
.load infile=LDMOS_DC
.tran 1ns 500ns
.END
#
# Atlas models
#
MODELS DEVICE=A1 mos
IMPACT DEVICE=A1 REG=1 SELB
METHOD CLIM.DD=1e4 DVMAX=1e6
go atlas
tonyplot LDMOS_trans_tr.log
quit
##################
I don't konw no log file and include some warning :1,Solution does not converge to given accuracy, taking smaller bias step. Bias sted reduced 1 times
2,Mesh specification is not complete. No Output is possible 25
any one can help me ,thank you very much