ise-tcad不收敛

请问在座各位老师前辈，用ISE——tcad仿真 mix-mode模式不收敛怎么办?我的步长已经改得很小了，是不是我的程序有问题?我把远程序贴上来大家一起帮我看看吧！死活就是不收敛！就是看ESD对SCR的反映了
Device SCR{
Electrode {
{ name="A"voltage=0.0}
{ name="K"voltage=0.0 }
}
Thermode {
{ name="A"temperature=300 }
{ name="K"temperature=300 }
}
File {
Grid= "SCR_mdr.grd"
Doping= "SCR_mdr.dat"
Plot= "SCR_des.dat"
Current = "SCR_des.plt"
}
Physics {
Hydrodynamic(eTemperature )
EffectiveIntrinsicDensity(oldSlotboom)
Mobility(DopingDep
eHighFieldSaturation(CarrierTempDrive)
hHighFieldSaturation(GradQuasiFermi)
Enormal
CarrierCarrierScattering)
Recombination (
SRH(DopingDependence TempDependence)
Auger
TrapAssistedAuger
Avalanche(VanOverstraeten CarrierTempDrive)
Band2Band
)
}
}
System{

SCR scr1 ("A"=n1 "K"=n0)
Capacitor_pset C1( n2 n0 ) { capacitance = 1e-10}
Resistor_psetR1( n1 n2 ) { resistance= 1.5e3}

Set(n0=0)

Set(n2=3000)
plot "nodes.plt"(time() n0 n1 n2)
}
File{
Current="ESD"
Output="ESD"
}
Plot {
eDensity hDensity
eCurrent hCurrent
ElectricField
eEnormal hEnormal
eQuasiFermi hQuasiFermi
Potential Doping SpaceCharge
SRH Auger Avalanche
eMobility hMobility
DonorConcentration AcceptorConcentration
Temperature
}
Math {
Iterations =20
NotDamped =50
Derivatives
AvalDerivatives
Extrapolate
NewDiscretization
RelErrControl
*BreakCriteria{LatticeTemperature (maxval=1580)}
}

Solve {
Coupled { Circuit Poisson Electron Hole Temperature}

Unset(n2)
Transient(
InitialTime=0 FinalTime=10e-09
InitialStep=1e-19 MaxStep=1e-10 MinStep=1e-20
Increment=1.2
)
{Coupled{ poisson electron hole Temperature Circuit }}
}

具体看看我在下帖中的答复，或许对你有所帮助。
http://www.eetop.com.cn/bbs/viewthread.php?tid=117417&extra=&frombbs=1

谢谢谢谢！太感谢了！感激不尽！

不错，牛人

换一种算法，或者用其他模型。

回复一下

GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOD

我也不收敛阿...

very good！

已经不存在了，求重发