Re: [ng-spice-devel] Your request re: Spice


To ng-spice-devel@ieee.ing.uniroma1.it
From Paolo Nenzi <pnenzi@ieee.ing.uniroma1.it>
Date Mon, 22 May 2000 16:17:29 +0200 (CEST)
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On Mon, 22 May 2000, Erik de Castro Lopo wrote:

> Hey People (List only),
> 
> This looks very promising indeed. It was also a damn quick
> response. Someone please remind me, what is BSIM3, and how 
> much would this impact on the usefulness of Spice as it is?
Well, I think that its impact in the development is minimal, we can link
it as a dynamic library using the gray area of GPL or simply remove it
from the GPL simulator until Prof. Hu takes a decision. 

Anyway BSIM3 is a device model for submicron mosfet process based. It is
probably the most used model in the industry, as level 49 in Hspice and
level 8 in spice3f5. Recently Berkeley has released a BSIM4 model and
three soi (Silicon on Insulator) models. I think that these devices will
follow the fate of bsim3 so they should be removed from the relase. 

As I wrote, the possibility ot use GPL tools counts more that the lack of
bsim models. What do you think ?


Paolo


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