Re: [ng-spice] BSIM3 Transient analysis ignoring TEMP
Hi Robert,
FYI - I have found that none of the simulator variables that can be set using
either the .OPTIONS line or the SET command on ngspice have any effect at all
on the simulation behavior or performance. I didn't specifically try to set
TEMP, but the options I did try seemed to be ignored. I reported this problem
a few days ago to the mail list & haven't gotten a solution. Sometime soon, I
am going to try to troubleshoot ngspice, but I've been working on other
things.
Mark
Robert Lindsell wrote:
> 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
--
Mark C. Johnson
mcjohnso@gte.net
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