BSIM3 Transient analysis ignoring TEMP


To ng-spice@ieee.ing.uniroma1.it
From Robert Lindsell <robertl@research.canon.com.au>
Date Wed, 17 Jan 2001 12:26:37 +1100
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Hi,

I've tried using ng-spice to simulate the delay through an ASIC IO
buffer based on BSIM3 MOSFET models.
I would expect that the characteristics of the buffer (delay, rise-time
etc) would change with temperature, but when I change the simulation
temerature via the TEMP option the characteristics remain unchanged....
to the limit of Spices' precision.

As a sanity check I tried the same decks on vanilla spice3f5 (no change)
and on WinSpice1.02 (worked OK, device was faster at lower TEMP).

The version of ng-spice I'm using is 0.5 (the last version I could
successfully build on Solaris 2.6)

Has anyone else tried this or have any explanation for it?

Regards,

Robert

Paolo Nenzi wrote:
> 
> Hi Glao,
> 
> I have very little time to play with microspice. I have installed it and
> run some included files. I like the front end you wrote. Can you tell me
> if
> a lever 49 (ala hspice) is included in it, I would like to test some
> work I have made.
> 
> Thanks,
> Paolo

-- 
Robert Lindsell, Senior Hardware Engineer   |
robertl@research.canon.com.au
Canon Information Systems Research Australia| Phone: +61-2-9805-2876
PO Box 313 NORTH RYDE NSW 2113              | Fax:   +61-2-9805-2929

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