TOOLS: The Incredible Shrinking Circuit

Science  24 May 2002:
Vol. 296, Issue 5572, pp. 1371e
DOI: 10.1126/science.296.5572.1371e

Silicon could be on its way out. The resistors, transistors, and wires in the next generation of minute microchips might be made from individual molecules. NanoHub offers a software toolkit for electrical engineers, physicists, and other researchers investigating this radical technology. The site lets you run more than a dozen programs to simulate nanoelectronic circuits. “You can explore designs for devices that Intel might be building in 10 years,” says electrical engineer Mark Lundstrom of Purdue University in West Lafayette, Indiana, one of nanoHub's founders. For example, one program calculates the electrical characteristics of different kinds of carbon nanotubes put to use as transistors. Free registration gives you access to most of the site's programs, which provide tools unavailable in commercial software packages, Lundstrom says.

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