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Subject: Re: Superconductivity and it's relationship to Chess Computers?

Author: Dann Corbit

Date: 21:43:34 12/02/99

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On December 03, 1999 at 00:31:22, David Blackman wrote:

>On December 02, 1999 at 22:01:35, Robert Hyatt wrote:
>
>>But a factor of 1000 is probably way high, as I don't think anyone could
>>(at present) make a transistor that much smaller, since current technology
>>uses a photographic process...  a transistor that small is such a small fraction
>>of the wavelength of light that it would be impossible to produce...  at least
>>today...
>
>I don't think they use photographic etching anymore, at least for state of the
>art stuff. These days the design rules vary from about 0.11 micron to 0.35
>micron. The minimum light wavelength you can use for this is about 0.4 micron
>otherwise you get lots of secondary electrons messing things up at etch time.
>
>I haven't been following it much lately, but it suspect it's mostly electron
>beam etching now. Anyone know?
I thought it was x-rays, but I have not been paying attention.




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