Category Archives: Announce

Semiconductor Device Simulation Using DEVSIM

Semiconductor Device Simulation Using DEVSIM is now available from our site.

Abstract:
DEVSIM is a technology computer aided design (TCAD) simulation software. It is released under an open source license. The software solves user defined partial differential equations (PDEs) on 1D, 2D, and 3D meshes. It is implemented in C++ using custom code and a collection of open source libraries. The Python scripting interface enables users to setup and control their simulations.

In this chapter, we present an overview of the tool. This is followed with a bipolar junction transistor (BJT) design and characterization example. A collection of open source tools were used to create a simulation mesh, and visualize results

The Python scripts for simulation are here:
https://github.com/devsim/devsim_bjt_example

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

DEVSIM under new open source license

The DEVSIM source code is now released under the Apache License, Version 2.0. It was previously under the LGPL 3.0. The license change is intended to promote adoption of the software and attract new contributors. A brief synopsis of the license is here.

The spirit of the Apache License is also more in line with the license terms packages that DEVSIM relies upon. More information about DEVSIM is available from https://www.devsim.org.

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

Cogenda Genius Open Source Update

Cogenda has updated the open source repository for the Genius Semiconductor Device Simulator. This is the first update to the open source project in 3 years. The commit message states that this update synchronizes the software with the 1.9.0 version of their commercial tool. The code distribution is on GitHub.

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

3D TCAD FINFET Models

An interesting project from the IuE Summer of Code 2014 is a collection of 3D CAD models. On the CAD models page are examples of these devices.

  • MOSFET and Single-Gate
  • Double-Gate
  • Tri Gate
  • All-Around-Gate
  • FlexFET
  • Special Gate-Form Devices

Using the FreeCAD open source CAD modeling software. The student created these models from examples in the literature. There are also tutorials at the bottom of the page for building a Double-Gate MOSFET and Tri-Gate devices.

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

2dmatter.com

The NanoTCAD ViDES team has announced their new website, http://www.2dmatter.com.

From their announcement:

The website is intended to be a useful tool in order to link to all the recent publications concerned with Two-dimensional materials from the main journals in the field, i.e., (up to now) Physical Review Letters, Physical Review B, Applied Physics Letters, IEEE Transaction on Electron Devices, IEEE Electron Device Letters, IEEE Nanotechnology, Proceedings of IEEE, Scientific Reports, Nature Nanotechnology, ACS NANO and Nano Letters.

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

New Genius Device Simulator Release

There was a new release of the Genius Device Simulator on March 22, 2014 as part of Cogenda’s Visual TCAD suite of tools. From their website:

http://cogenda.com/article/Release-Notes-VisualTCAD

  • Density-Gradient Model for inversion layer in MOSFET’s
  • Schur-complement numerical solver for Device Circuit Simulation
  • Improved impact-ionization model
  • Self-consistent gate tunneling current mode
  • Mobility and other material property models which matches with another popular TCAD tool
  • 3D analysis of satellite internal-charging problem.
  • minor features and bug fixes

This is their first release of a public update in over a year. I’m looking forward to their update of their open source version of their project at http://github.com/cogenda/Genius-TCAD-Open

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

Fujitsu Simulates Graphene Device Using Open Source Tool

Fujitsu announced the simulation of a 3030 Atom Nano device here on January 14th, 2013. The simulation took 20 hours on their supercomputer to simulate the electrical properties of graphene and an insulating layer, using OpenMX Material Explorer.

Even more interesting is the news that OpenMX is an open source tool available from openmx-square.org under the terms of the GPL.

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.

MOS-AK GSA December 2013

Presentations from the 6th International MOS-AK/GSA Workshop on Dec.11, 2013 in Washington DC are now available from http://www.mos-ak.org/washington_dc_2013/.

It was organized to discuss SPICE/compact modeling and its standardization. There are presentations about the the various compact modeling initiatives going on in industry and academia.

You can keep track of MOS-AK’s work by signing up for their mailing list at: http://www.mos-ak.org/. They also have a listing of future events concerning compact modeling.

If you have any announcements concerning TCAD companies, modeling, or simulation, please send us a note via the contact form.