Category Archives: research

Density Gradient Method

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.

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Sponsored Master’s Thesis Research in TCAD


Master thesis: Development of automated TCAD tools for the assessment of electro migration in highly integrated circuits

Advertising institute: ZEA-2 – Electronic Systems
Reference number: D127/2016, Electrical engineering, physics
The Central Institute of Engineering, Electronics and Analytics (ZEA-2 – Electronic Systems) is a scientific technical institute of Forschungszentrum Jülich GmbH performing research and development projects in cooperation with the institutes of the research center as well as external partners. The focus of our work is electronic and information technology system solutions in sensor and detektor technology, signal and data processing as well as measurement techniques.

More information available here

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Solving for magnetic fields in DEVSIM.

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.

twowire1

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Announcing TCAD Central

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.

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3d simulation

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.

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Most important device simulation features?

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?

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