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Technology Stocks : MEMC INT'L. (WFR -NYSE) The Sleeping Giant?
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To: Zeev Hed who wrote (3112)3/12/1998 7:32:00 PM
From: John Cuthbertson  Read Replies (1) of 4697
 
Re: isotopically pure Si.

Hi Zeev,
Just out of curiosity, why would isotopically pure Si be expected to have higher thermal conductivity? I would expect that the conductivity would be predominantly determined by the electron mobility, which would be much more strongly affected by, say, impurity elements or, as you suggested, the crystal structure, rather than the isotopic composition of the silicon. Is there some subtlety here that I am not catching?

==John
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