I'm trying to simulate TFET and I specify the nonlocal meshes, Barriertunnling modelsand traps model for regions and interfaces. Then I specify the parameter of tunneling in the parameter file as follow:
BarrierTunneling "NLM1"{
g = 2 , 2
mt = 0.023 , 0.026
eoffset =(0.88) # [eV]
hoffset = (0.13)
}
for each region and interfaces. But the following error always appear:"No valid electron BarrierTunneling mass has been specified for region 'sourceregion'. !"
How I could solve these error???
Thanks
I am also facing the same problem. If anyone can answer the question.
Hi Amira, Shubham.
I'm probably not the best reference regarding TCAD, but from exploring some device simulations in Sentaurus early in my thesis I came across similar issues.
Maybe, this thread helps, since it worked for me and for others in the past and you may find people in it that are actively working with TCAD:
https://www.researchgate.net/post/How_do_I_measure_gate_leakage_current_for_MOS_device_using_TCAD_sentaurus
Hope this helps!
Best
Sebastian
Dear Amira Nabil
Hope you solved this problem.
I would expect that the given values for tunneling mas as you input it is not appropriate. I have never seen any such too low values for the effective masses.
Such very small effective masses means very narrow minimum of E-K relation inside the wells.
Any how you have to increase mt values till the disappearance of the error message.
Best wishes
I have tha same problem, but with Silicon Carbide
Error: No valid electron BarrierTunneling mass has been specified for region 'SiliconCarbide_1'. !
Same problem: It has been solved in this way:
Suppose you have such problem on a specific region of your structure .. let us say Pippo region.
Open sdevice.par file which can you find in your work directory.
Open it and add at the end of file such instructions:
# ===========================
Region="Pippo" {
#includeext "ParFileDir/Silicon.par"
BarrierTunneling {
mt =0.328, 0.443
g =2.1, 0.66
alpha=0,0
}
# ====================
It should work.
bye jack
P.S. Same thing if the problem isn't a Region but a material. You should replace Region by Material :-)
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