Simulation VDMOS (Breakdown Voltage) Tension de Claquage

Simulation VDMOS  ATLAS

Breakdown Voltage at T=328°K
*******************************tension de claquage (T=328°K)**********************************

go atlas

mesh inf=mos2ex02_0.str master.in

models cvt  srh print numcarr=2 lat.temp

impact selb

# MATERIAL CONTACT INTERFACE AND MODELS

contact num=1  name=gate n.polysilicon

contact num=2 name=source 

contact num=3 name=drain

interface qf=3e10

thermcontact num=1 x.min=0 x.max=12 y.min=101 y.max=101 temp=328

thermcontact num=2 x.min=0 x.max=0 y.min=-2 y.max=101 temp=328

thermcontact num=3 x.min=12 x.max=12 y.min=-2 y.max=101 temp=328

thermcontact num=4 x.min=0 x.max=12 y.min=-2 y.max=-2 temp=328

method newton trap maxtraps=10 climit=1e-4 

solve init

solve vgate=0

solve vsource=0

output e.field flowlines e.temp e.mobility h.mobility

log outf=vbr_328.log

solve vdrain=0.03

solve vdrain=0.1

solve vdrain=0.25 vstep=0.25 vfinal=2 name=drain

solve  vstep=1 vfinal=10 name=drain 

solve  vstep=2.0 vfinal=500 name=drain

solve  vstep=1 vfinal=600 name=drain compl=1.e-6 cname=drain \

    outf=vbr_328_1.str master onefile

extract name="bv" max(v."drain")

tonyplot vbr_328.log -set vbr_328.set

tonyplot vbr_328_1.str -set vbr_328_1.set

quit

 

Second Breakdown Voltage  of VDMOS at T=328°K
*********************************second claquage (T=328°K)********************************

go atlas

mesh inf=mos2ex02_0.str master.in

# MATERIAL CONTACT INTERFACE AND MODELS

contact num=1  name=gate n.polysilicon

contact num=2 name=source 

contact num=3 name=drain

interface qf=3e10

# Set models

models  print cvt consrh    lat.temp hcte.el

impact selb length.rel lrel.el=0.02

#models srh conmob bgn auger fldmob  

#impact  crowell

thermcontact num=1 x.min=0 x.max=12 y.min=101 y.max=101 temp=328

thermcontact num=2 x.min=0 x.max=0 y.min=-2 y.max=101 temp=328

thermcontact num=3 x.min=12 x.max=12 y.min=-2 y.max=101 temp=328

thermcontact num=4 x.min=0 x.max=12 y.min=-2 y.max=-2 temp=328

solve init

method  newton trap

curvetrace end.val=1e-4 contr.name=drain curr.cont \

           mincur=1e-13 nextst.ratio=1.2 step.init=0.5

output e.field flowlines e.temp e.mobility h.mobility

log outf=2breakdown_T328.log master

solve curvetrace

save outf=2breakdown_T328_1.str

quit