I am making resistive load inverter by a TFT. i got the DC curve perfectly by doing mixed mode simulation on silvaco. Now i am trying to simulate the transient analysis but the results are not inverted. the results i am getting are shifted. please suggest me the possible error.
Silvaco code i am writing is
go atlas
mesh infile=ITZO.str width=10
.begin
vin 1 0 0.0 PULSE -5.0 10.0 0.0 10ps 10ps 40ps 180
atft 2=drain 1=gate 0=source infile=ITZO2.str width=10
r1 3 2 1000000k
vcc 3 0 10.0
c1 2 0 .01ff
.numeric lte=0.05 dtmin=1e-15
.options print noshift
.log outfile=ITZO_t
.tran 0.05ps 100ps
.end
contact device=atft name=drain neutral
contact device=atft name=source neutral
contact device=atft name=gate workf = 4.53
doping uniform n.type conc=4.62e15 region=1
interf qf=3e10
material material= ITZO user.group=semiconductor user.default=IGZO EG300=3.02 PERMITTIVITY=10 AFFINITY=4.65 MUN=30 MUP=0.1 NC300=1.59e19 NV300=1.21e19
material material= HFO2 EG300= 5.7 PERMITTIVITY=35
model device=atft reg=1 fermi temp=300 print
go atlas
tonyplot ITZO_t_tr.log
quit
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