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minimum size?

Discussion in 'Electronic Basics' started by [email protected], Aug 17, 2006.

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  1. Guest

    What would be the minimum size for circuits chip design? How small can
    the the circuit pathways be made? Is it the quantum limit? The width of
    an electron?
     
  2. You might google on 'minimum feature size'. There are references to
    processes that could have structures of 20 - 50 nm. By comparison, the
    sort-of-size of an electron is 2.8 e-15m, or 7 million times smaller.
     
  3. Guest

    Interatomic spacing is around 0.1 to 0.2 nm. This means that a 20nm
    track only has a width of 100 atoms or so. It is certainly starting to
    get towards having to consider individual atoms. IIRC, there was a
    report somewhere about someone making a transistor that only had a
    single electron on the gate.

    Also, in something like lithography, oxide thicknesses are smaller than
    the minimum feature size. In effect, on an IC, there is much better
    vertical resolution than horizontal resolution.
     
  4. Henry

    Henry Guest

    I do believe Charles Sheffield discussed this in one of his non-sf essays.
    It might have been in Borderlands of Science.
     
  5. Henry

    Henry Guest

    I do believe Charles Sheffield discussed this in one of his non-sf essays.
    It might have been in Borderlands of Science.
     
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