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Nature 399, 729-730 (24 June 1999) | doi:10.1038/21526

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The end of the road for silicon?

Max Schulz1

Computer chips continue to shrink. But the discovery that a layer of silicon dioxide must be at least four to five atoms thick to function as an insulator suggests that silicon-based microchips will reach the physical limits of miniaturization early next century.

  1. Max Schulz is at the Institute of Applied Physics, University of Erlangen-Nürnberg, Staudtstrabetae 7, D-91058 Erlangen, Germany.
    e-mail: Email: Max.Schulz@physik.uni-erlangen.de