silvaco学习日记（五）--改变材料参数并且使用

用了很久才改变材料的参数并且使用，主要原因还是被之前的编程语言所束缚，将自定义材料的语句放在了比较靠前的位置，而实际上，这些语句应该放在最后面
我们先看一下改变材料参数的语句：

material material=sic-4H permittivity=9.66 eg300=3.26 \
           egalpha=6.5e-4 egbeta=1300  vsat=2.0e7  ksrhgn=-1.7 ksrhgp=-1.7 \
           ksrhtn=5e-9 ksrhtp=2e-7 ksrhcn=2e-8 ksrhcp=5e-10 augn=2.8e-31 \
           augp=9.9e-32

mobility   region=1  mu1n.caug=0  alphan.caug=1 mu2n.caug=950 betan.caug=-2.15 \
           gamman.caug=0.05 deltan.caug=0.6 ncritn.caug=1.9e17 mu1p.caug=16 \
           alphap.caug=-1.6 mu2p.caug=140 betap.caug=-2.14 gammap.caug=0.17 \
           deltap.caug=0.34 ncritp.caug=1.9e17 betan=2 betap=2 
mobility   region=7  mu1n.caug=0  alphan.caug=1 mu2n.caug=950 betan.caug=-2.15 \
           gamman.caug=0.05 deltan.caug=0.6 ncritn.caug=1.9e17 mu1p.caug=16 \
           alphap.caug=-1.6 mu2p.caug=140 betap.caug=-2.14 gammap.caug=0.17 \
           deltap.caug=0.34 ncritp.caug=1.9e17 betan=2 betap=2 
#
model fldmob srh auger print temperature=300

这里我们是对4H-sic进行参数的改变（具体参数什么意义有些我不是很清楚，这是一位师兄提供的）
整段代码为：

go atlas simflag="-p 4"
mesh space.mult=1.0
x.mesh loc=0 spac=0.02
x.mesh loc=2 spac=0.05
x.mesh loc=4 spac=0.05
x.mesh loc=4.5 spac=0.05
x.mesh loc=5 spac=0.05
x.mesh loc=5.5 spac=0.05
x.mesh loc=6.5 spac=0.05
x.mesh loc=7 spac=0.05
x.mesh loc=7.5 spac=0.05
x.mesh loc=8 spac=0.05
x.mesh loc=10 spac=0.05
x.mesh loc=12 spac=0.05

y.mesh loc=-0.5 spac=0.01
y.mesh loc=-0.3 spac=0.01
y.mesh loc=-0.2 spac=0.01
y.mesh loc=0 spac=0.02
y.mesh loc=0.3 spac=0.05
y.mesh loc=0.6 spac=0.05
y.mesh loc=140 spac=2
y.mesh loc=145 spac=0.05
y.mesh loc=145.5 spac=0.5

region number=1 x.min=0 x.max=12 y.min=0 y.max=140 material=sic-4H
region number=2 x.min=0 x.max=12 y.min=-0.5 y.max=0 material=sio2
region number=3 x.min=0 x.max=4 y.min=-0.5 y.max=0 material=aluminum
region number=4 x.min=8 x.max=12 y.min=-0.5 y.max=0 material=aluminum
region number=5 x.min=4.5 x.max=7.5 y.min=-0.5 y.max=-0.3 material=aluminum
region number=6 x.min=0 x.max=12 y.min=145 y.max=145.5 material=aluminum
region number=7 x.min=0 x.max=12 y.min=140 y.max=145 material=sic-4H


electrode reg=3 name=anode
electrode reg=4 name=anode
electrode reg=5 name=gate
electrode reg=6 name=cathode


doping uniform region=1 x.min=0 x.max=12 y.min=0 y.max=140 p.type concentration=3e15
doping uniform region=7 x.min=0 x.max=12 y.min=140 y.max=145 n.type concentration=1e19
doping uniform region=1 x.min=0 x.max=5.5 y.min=0 y.max=0.6 n.type concentration=1.5e18
doping uniform region=1 x.min=0 x.max=2 y.min=0 y.max=0.3 n.type concentration=1e19
doping uniform region=1 x.min=2 x.max=5 y.min=0 y.max=0.3 p.type concentration=1e18
doping uniform region=1 x.min=6.5 x.max=12 y.min=0 y.max=0.6 n.type concentration=1.5e18
doping uniform region=1 x.min=7 x.max=12 y.min=0 y.max=0.3 p.type concentration=1e18
doping uniform region=1 x.min=10 x.max=12 y.min=0 y.max=0.3 n.type concentration=1e19

material material=sic-4H permittivity=9.66 eg300=3.26 \
           egalpha=6.5e-4 egbeta=1300  vsat=2.0e7  ksrhgn=-1.7 ksrhgp=-1.7 \
           ksrhtn=5e-9 ksrhtp=2e-7 ksrhcn=2e-8 ksrhcp=5e-10 augn=2.8e-31 \
           augp=9.9e-32

mobility   region=1  mu1n.caug=0  alphan.caug=1 mu2n.caug=950 betan.caug=-2.15 \
           gamman.caug=0.05 deltan.caug=0.6 ncritn.caug=1.9e17 mu1p.caug=16 \
           alphap.caug=-1.6 mu2p.caug=140 betap.caug=-2.14 gammap.caug=0.17 \
           deltap.caug=0.34 ncritp.caug=1.9e17 betan=2 betap=2 
mobility   region=7  mu1n.caug=0  alphan.caug=1 mu2n.caug=950 betan.caug=-2.15 \
           gamman.caug=0.05 deltan.caug=0.6 ncritn.caug=1.9e17 mu1p.caug=16 \
           alphap.caug=-1.6 mu2p.caug=140 betap.caug=-2.14 gammap.caug=0.17 \
           deltap.caug=0.34 ncritp.caug=1.9e17 betan=2 betap=2 
#
model fldmob srh auger print temperature=300
save outf=15KV_P_IGBT.str

quit

这还是比较简单的，只要在后面加上就可以了