Find information on common issues.
Ask questions and find answers from other users.
Suggest a new site feature or improvement.
Check on status of your tickets.
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...
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...
In the input deck, the poisson convergence criterion is stated as 1e-3. What exactly is the convergence criteria used in omenwire? How much additional computational time will I need if I...
Default voltage values need be changed.
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...
Closed | Responses: 3
I’m getting the following error when I run a simulation:
can’t read “total vstep” : no such variable
In determining the electron density, what fermi levels did you use at the source and drain?
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
Getting job error.
While running a simulations, after some time getting this error:
“Problem launching job:
child process exited abnormally”
Can’t understand what the...
How is the continuous doping density profile implemented in omenwire?
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...
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...
Problem launching job error
Closed | Responses: 2
I didn’t change any default setting, but the tool is not performing the simulation.
Why does the potential show a singularity at the location where the boundary condition changes from Dirichlet to Neumann?
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...
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...
OMEN Nanowire Supporting Document
23 Feb 2009 | Downloads | Contributor(s): SungGeun Kim, Gerhard Klimeck, Mathieu Luisier
This material supplements the first-time 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...