University of Berkely, John Lazzaro "Chipmunk" - free electronic computer-aided-design tools for schematic capture, circuit and logic simulation, VLSI layout and LVS, data viewing, and drawing.
There are 14 days evaluation versions of the commercial “MyAnalog XV” “MyChip Station XV”, “MyLogic Station XV” and “MyVHDL Station XV” available for download.
Archive.org "Tanner Research, Inc.: L-Edit Pro Student Version" ( - 2005-11-05 ) - “The base student version can be purchased with Physical Design of CMOS Integrated Circuits Using L-Edit, the textbook written by Dr. John P. Uyemura, Professor of Electrical and Computer Engineering, Georgia Institute of Technology. Students must have purchased and installed the student version provided with Dr. Uyemura's textbook in order to download the L-Edit student version (7.12 update)”.
Esys.Net, SourceForge "Esys.Net", SourceForge "Esys.Net" - “A new system-level modeling and simulation environment. It takes advantages of .NET capabilities such as introspection, multi lingual model definition,... It allows more easily the creation of external tools (ex: verification, debugger, ...)”.