Re: [Gnucap-devel] New gnucap development snapshot

[Dan McMahill]

Al Davis wrote:
> There is a new development snapshot of gnucap available.
>
> This one adds a first cut at the MOSFET level 8 and 49 model.
>
> It accepts all of the parameters.  

Hi Al,

I'm looking forward to being able to use level 49 foundary models with 
gnucap.  As a short test I tried using some parameters in the way that 
some foundary models are done.  The netlist and some gnucap 
warnings/errors are shown below:



* Parameter and level 49 test

.param A4NP=0 fac_n ='0.3*2.5'
+ toxn='8E-09+A4NP*fac_n*1.5e-10*0.5'

.MODEL nch NMOS (
+LEVEL    = 49                  TNOM     = 25.0                VERSION 
= 3.24
+TOX      = 'toxn'             ACM=12
+)

m1  1 1 0 0  nch w=5u l=0.6u
iid 0 1 200u
.PRINT OP gm(m1) gds(m1) vdsat(m1)
.op
.end


when I run it, I get a complaint about ACM which is part of the Hspice 
level 49 diode modeling.  I can find the details on how ACM should work 
if that would help.  Also somehow it doesn't like the parameter usage here.

* Parameter and level 49 test
... 3.24 TOX      = 'toxn'              ACM=12 )
                                        ^ ? what's this?
parameter 'toxn' has no value
parameter 'toxn' has no value


-Dan