The Density Gradient Method has been implemented as a simulation example for DEVSIM. This method is a quantum mechanical correction for carrier densities near a semiconductor/insulator interface.
The example scripts simulate both a 1D and 2D MOSCAP structure. The scripts generate plots to visualize the results.
It can be downloaded from https://github.com/devsim/devsim_density_gradient.
This past week I’ve been experimenting with solving magnetic field problems. Here is my first result. Two wires are in the center of the figure with current flowing in opposite directions. The solution variable is the magnetic vector potential, A, and is shown in the color gradient. The arrows are the magnetic field, B, which is post processed from the solution. In turns out this post processing is similar to finding the vector impedance field used in noise analysis.
I’ve started a new website at https://www.tcadcentral.com. It is a wiki dedicated to technology computer aided-design. Please check it out, and let me know if you have suggestions, or would like to participate.
Mulling over the importance of 3d simulation. I’m by no means a meshing expert. Looking for third party tools to create tetrahedral meshes. As of now gmsh seems to look promising.
What are the most important features in a semiconductor device simulation software?
Is it accuracy, number of models, advanced models, 3d? What about ease of use, scripting capability, extensibility? Anything to be said for licensing models or price?