Darren New wrote:

> And you think that people building modern semiconductor wafers aren't 
> using quantum dynamics to design them?  I mean, you need QED to even 
> make *any* semiconductor work.

Oh sure. For an idealised infinite grid of atoms. That's a nice 
simplification - which stops working when you have a device made of 12 
individual atoms.

>> only, say, 20 atoms in size, then they'd *all* be ordinary silicon 
>> atoms, and it wouldn't be a semiconductor.
> 
> Technically, it would still be a semiconductor. Just not a very useful 
> one, because it would be 100% semiconductor.

Interesting. As I understand it, pure silicon is a *non*-conductor. It 
only becomes a *semi*-conductor when doped with inpurities...

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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