Hi all,
I am running into an interesting problem with Hspice. I am trying to
simulate variants of a cell ( with varying tox in my case) using the
same spice netlist. I do not want to use the .alter statement. What I
want to do instead is somehow redefine the PFET device model parameter
toxp for different instances of the PFET device.
Multiple parameter defintions dont work, the last defn is used for
commands even before that appears.
One option I tried was .option parhier local, which allows local
scoping of parameters. This works for length, width but does not seem
to work for tox ( which is a sort of pure model parameter).
Is that fundamentally an issue with how model parameters are used in
hspice simulation, or is there an elegant workaround to .alter ( one
which will obv save some cpu time).
Any suggestions will be appreciated.
Vineeth
