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300字范文 > Silvaco TCAD LTPS双栅器件仿真收敛不了 有没有好的解决办法

Silvaco TCAD LTPS双栅器件仿真收敛不了 有没有好的解决办法

时间:2022-03-22 19:02:24

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Silvaco TCAD LTPS双栅器件仿真收敛不了 有没有好的解决办法

器件仿真控制语言如下:

# (c) Silvaco Inc.,

go atlas

TITLE polysilicon TFT simulation

mesh nx=104 ny=55

#

x.mn=1 l=0r=1

x.mn=104 l=16 r=1

#

#

y.mn=1 l=-0.12 r=1

y.mn=24 l=0 r=1

y.mn=50 l=0.0450 r=1

y.mn=55 l=0.6 r=1.6

#

#

# **************** regions *******************************

# 1=oxide 2=silicon 3-oxide

#

region num=1 y.min=-0.12 y.max=-0.08 nitride

region num=2 y.min=-0.08 y.max=0. oxide

region num=3 y.min=0. y.max=0.0450 silicon

region num=4 y.min=0.0450 y.max=0.6 oxide

#

# **************** electrodes ****************************

# 1=gate 2=substrate 3=source 4=drain

#

elec num=1 x.min=3.5 x.max=5.5 y.min=-0.12 y.max=-0.12 name=gate

elec num=2 x.min=10.5 x.max=12.5 y.min=-0.12 y.max=-0.12 name=gate

elec num=3 substratename=substrate

elec num=4 x.min=0. x.max=2 y.min=0. y.max=0. name=source

elec num=5 x.min=14 x.max=16 y.min=0. y.max=0. name=drain

#

# **************** doping profiles ***********************

#

doping reg=3 uniform conc=1.e10 n.type

doping reg=3 gauss conc=9.e21 n.type x.min=0. x.max=2 char=0.3

doping reg=3 gauss conc=1.8e18 n.type x.min=2 x.max=3.5 char=0.3

doping reg=3 gauss conc=1.8e18 n.type x.min=5.5 x.max=7 char=0.3

doping reg=3 gauss conc=9.e21 n.type x.min=7. x.max=9 char=0.3

doping reg=3 gauss conc=1.8e18 n.type x.min=9 x.max=10.5 char=0.3

doping reg=3 gauss conc=1.8e18 n.type x.min=12.5 x.max=14 char=0.3

doping reg=3 gauss conc=9.e21 n.type x.min=14 x.max=16 char=0.3

#

#

# Set parameters for polysilicon

#

material region=3 mun=300 mup=30

#

# Use the continuous defect model

defects continuous numa=24 numd=24 \

nta=7.3e20 ntd=8.5e20 wta=0.047 wtd=0.03 \

nga=2.4829e17 ngd=3.5e17 ega=0.7 egd=0.3 wga=0.125 wgd=0.12 \

sigtae=1.e-16 sigtah=1.e-14 sigtde=1.e-14 sigtdh=1.e-16 \

siggae=1.e-16 siggah=1.e-14 siggde=1.e-14 siggdh=1.e-16

#

contact num=1 n.polysilicon

contact name=source

contact name=drain

models srh temp=300

models print bbt.kl bb.b=1.05e7

#

output con.band val.band

method newton

solve init

save outf=sim.str

tonyplot sim.str -set tftex07_0.set

#

# Electrode #1 - Gate, #2 - Substrate, #3 - Source, #4 - Drain

#

method newton trap maxtrap=10

#

solve vdrain=0.1

solve vdrain=0.2

solve vdrain=0.5

solve vdrain=1 vstep=0.01 vfinal=10. name=drain

#

# Solve id versus vg curve

#

#

log outf=sim_10v.log

solve vstep=0.1 vfinal=15 name=gate vgate=-15 vdrain=10

solve vgate=-0.1

solve vgate=-0.2

solve vgate=-0.5

solve vgate=-1 vstep=-1 vfinal=-15. name=gate

log outf=sim_0.1v.log

solve vstep=0.1 vfinal=15 name=gate vgate=-15 vdrain=0.1

#tonyplot -overlay tftex07_1.log tftex07_2.log -set tftex07_1.set

tonyplot -overlay sim_10v.log sim_0.1v.log -set tftex07_2.set

extract init inf ="sim_10v.log"

extract name = "IOFF" y.val from curve (v."gate",i."drain") where x.val =-7

extract name = "ION" y.val from curve (v."gate",i."drain") where x.val =8

#

quit

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