With support from the National Science Foundation (NSF), a team of Stanford University engineers has for the first time built a tiny computer with 178 transistors made from carbon nanotubes, a semiconductor material that may replace silicon in computer chips. This change could launch a new generation of electronic devices that are smaller, cheaper, faster and more energy-efficient than those of today. “This is greater than a promise,” said Mihail Roco, senior advisor for Nanotechnology at NSF, and a key architect of the National Nanotechnology Initiative, “In the years ahead, it is a probability.” The achievement, which culminates years of effort by scientists around the world, is detailed today in the cover story of the journal Nature. The research is led by Stanford professors Subhasish Mitra and H.S. Philip Wong. “People have been talking about a new era of carbon nanotube electronics moving beyond silicon,” said Mitra, an electrical engineer and computer scientist at Stanford. “But there have been few demonstrations of complete digital systems using this exciting technology. Here is the proof.” “This paper details a most significant nano-enabled integrated system with nanotubes that can perform a general set of computer programs proposed to replace the current transistor technology,” said Roco. “They
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