
analytical expression for the poisson solve
Open  Responses: 1
May I know what is the rational behind the use of the analytical expression given in the answer I asked about the convergence criteria. In particular, is the analytical formula based on the...
https://nanohub.org/answers/question/316

boundary conditions for the poisson equation
Open  Responses: 2
I have simulated a case where Vg = 0.4V and Vd =0V. However, when I look at the potential plot, it appears that the potential at the boundary where the gate is 0V. Is it simply a plotting...
https://nanohub.org/answers/question/320

convergence criteria
Open  Responses: 2
In the input deck, the poisson convergence criterion is stated as 1e3. What exactly is the convergence criteria used in omenwire? How much additional computational time will I need if I...
https://nanohub.org/answers/question/305

Default voltage values need be changed.
Open  Responses: 2
With the default device specifications, it seems that the default nanowire has a threshold voltage of ~ 0.6V. So, to drive the device into deep ON state, one should apply gate voltage, probably...
https://nanohub.org/answers/question/246

Error clarification
Closed  Responses: 3
Hello,
I’m getting the following error when I run a simulation:
can’t read “total vstep” : no such variable
while executing
“expr...
https://nanohub.org/answers/question/507

fermi level
Open  Responses: 2
In determining the electron density, what fermi levels did you use at the source and drain?
Thanks,
George
https://nanohub.org/answers/question/304

Getting Exit Code 1
Closed  Responses: 1
Why is this problem happening??
Program Finished :Exit Code is 1
Can’t read “total_vstep” :no such variable
while executing
“ expr...
https://nanohub.org/answers/question/1322

Getting job error.
Closed  Responses: 3
While running a simulations, after some time getting this error:
“Problem launching job:
child process exited abnormally”
Can’t understand what the...
https://nanohub.org/answers/question/1104

How is the continuous doping density profile implemented in omenwire?
Open  Responses: 1
Hi,
I understand that to mimic the contacts we enforce a high doping density in the source/drain extension regions, and it is easy to do so in a continuum formulation, like the effective...
https://nanohub.org/answers/question/462

How to do simulation on OMEN nanowire tool?
Open  Responses: 3
I have changed some input values and tried to simulate the structure but, it was taking around 3 hours to get simulated. Is there easy way to simulate nanowire structure using OMEN Nanowire...
https://nanohub.org/answers/question/504

Problem launching job error
Closed  Responses: 2
Hello,
I didn’t change any default setting, but the tool is not performing the simulation.
Bahare
https://nanohub.org/answers/question/796

Why does the potential show a singularity at the location where the boundary condition changes from Dirichlet to Neumann?
Closed  Responses: 3
At the gate side, there is a change of boundary condition from Dirichlet to Neumann as we move from the gate to the insulator. Mathematically, this will lead to a singularity in the solution...
https://nanohub.org/answers/question/332

Benjamin P Haley
Ben received his B.S. in Physics from Purdue in 1998. He worked for Cummins Engine Co and Intel before attending graduate school at UC Davis. He received a Masters in Engineering Applied Science...
https://nanohub.org/members/17286

Is penetration of electron in oxide considered in calculation?
Closed  Responses: 0
Hi,
I'm trying to develop a SiNWT simulator ( :P) based on modespace approach. I'm using OMEN WIRE in order to compare the results that I get. I feel the OMEN model...
https://nanohub.org/answers/question/1860

OMEN Nanowire Supporting Document
23 Feb 2009   Contributor(s):: SungGeun Kim, Gerhard Klimeck, Mathieu Luisier
This material supplements the firsttime user guide for OMEN Nanowire with details concerning the limitation of the tool at large gate voltage. At large gate voltage, the calculations of the drain current can be incorrect when the Poisson solver in OMEN does not converge. This problem is not...

problem launching job
Closed  Responses: 1
sir why do I get the following error:
Problem launching job:
Program finished: nonzero exit code is 1
can't read "total_vstep": no such...
https://nanohub.org/answers/question/1811

Simulation not working, no result shown.
Closed  Responses: 0
Hi, I'm trying to run the simulation with default setting and no result is presented. Could someone please help. Thank you.
https://nanohub.org/answers/question/1969