Hi.
I'm trying to plot the amount of current that is flowing through the terminals of my semiconductor device while a light beam is radiating towards the device with changing wavelength.
I wrote this piece of code to change the wavelength of the beam:
beam num=1 x.origin=0.5 y.origin=-1.0 angel=90.0 wavelength=8 thinest=0.1
methode newton trap
solve init
solve vcathode=1.5
log outf=newproject.log master
solve prev b1=1 lambda=8.1
solve prev b1=1 lambda=8.2
solve prev b1=1 lambda=8.3
solve prev b1=1 lambda=8.4
solve prev b1=1 lambda=8.5
solve prev b1=1 lambda=8.6
solve prev b1=1 lambda=8.7
solve prev b1=1 lambda=8.8
solve prev b1=1 lambda=8.9
solve prev b1=1 lambda=9.0
solve prev b1=1 lambda=9.1
solve prev b1=1 lambda=9.2
I wrote this part of the code based on Silvaco standard example but I get this error when software reaches the second solve line (solve prev b1=1 lambda=8.2)
" Warning: Internal error in linear solver.
This situation rarely occurs in normal circumstances.
This error could indicate a ill-defined problem.
Check structure and models for possible conflicts.
Warning: Cannot trap. Cannot reduce bias
step. Choose smaller bias step size, or
check structure and or models. "
Does anyone have any suggestions?
Thanks in advance.