Nanotubes form dense transistor array
The breakneck pace of microelectronics development in the last 3 decades has relied on squeezing more and more transistors onto silicon chips. Yet, within 10 to 15 years, silicon electronics will hit its miniaturization limit, experts say.
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Now, researchers at IBM’s T.J. Watson Research Center in Yorktown Heights, N.Y., have urged carbon nanotubes, potential tools for keeping miniaturization going, over a major hurdle. In the April 27 Science, Phaedon Avouris and his colleagues report making transistor arrays of single-walled carbon nanotubes. Each tube is just atoms wide.