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Date: Tue, 4 Oct 2005 13:22:01 +0100
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
To: Jason Stubbs <jstubbs@work-at.co.jp>
Cc: jonathan@jonmasters.org, linux-kernel@vger.kernel.org
Subject: Re: what's next for the linux kernel?
Message-ID: <20051004122201.GN10538@lkcl.net>
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On Tue, Oct 04, 2005 at 10:33:16AM +0900, Jason Stubbs wrote:
> Luke Kenneth Casson Leighton wrote:
> > halving the microns should quadruple the speed: the distance is halved
> > so light has half the distance to travel and ... darn, can't remember
> > the other reason for the other factor-of-two.
> 
> 2 dimensions?
 
 Voltage-squared.  capacitance.  when you go down the microns, your
 capacitance drops and the voltage squared goes down, too.

 0.65nm is 1.2v

 0.45 is aiming for 0.9 volts.
 
 silicon germanium is going to hit a limit real soon.
 you can't go below 0.8 volts, that's the gate "off" threshold.

 l.

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