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Alliance is a complete set of free CAD tools and portable libraries for VLSI design. It includes a VHDL compiler and simulator, logic synthesis tools, and automatic place and route tools. A complete set of portable CMOS libraries is provided. Alliance is the result of a twelve year effort spent at ASIM department of LIP6 laboratory of the Pierre et Marie Curie University (Paris VI, France). Alliance has been used for research projects such as the 875 000 transistors StaCS superscalar microprocessor and 400 000 transistors IEEE Gigabit HSL Router.

Alliance VLSI CAD System is free software. Binaries, source code and cells libraries are freely available under the GNU General Public License (GPL). You are welcome to use the software package even for commercial designs without any fee. You are kindly requested to mention : "Designed with Alliance © LIP6, Université Pierre et Marie Curie"

Carbon nanotubes (CNTs) are allotropes of carbon. A single wall carbon nanotube is a one-atom thick sheet of graphite (called graphene) rolled up into a seamless cylinder with diameter of the order of a nanometer. This results in a nanostructure where the length-to-diameter ratio exceeds 10,000.

Such cylindrical carbon molecules have novel properties that make them potentially useful in many applications in nanotechnology, electronics, optics and other fields of materials science.

They exhibit extraordinary strength and unique electrical properties, and are efficient conductors of heat. Inorganic nanotubes have also been synthesized.

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Nanotechnology is a field of applied science and technology covering a broad range of topics. The main unifying theme is the control of matter on a scale smaller than 1 micrometre, normally between 1-100 nanometers, as well as the fabrication of devices on this same length scale. It is a highly multidisciplinary colloidal science, device physics, and supramolecular chemistry. Much speculation exists as to what new science and technology might result from these lines of research. Some view nanotechnology as a marketing term that describes pre-existing lines of research applied to the sub-micron size scale. field, drawing from fields such as

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VLSI (very large-scale integration) is the current level of computer microchip miniaturization and refers to microchips containing in the hundreds of thousands of transistors. LSI (large-scale integration) meant microchips containing thousands of transistors. Earlier, MSI (medium-scale integration) meant a microchip containing hundreds of transistors and SSI (small-scale integration) meant transistors in the tens.

The Electric VLSI Design System is open source, and is available for download, free of charge.
Documentation is available for Electric. This includes a User's Manual, Internals documentation, and a textbook on CAD tools.