Help need on varying the total width parameter of a mosfet

[venkat]

Hi All,
I wrote a skill code to array pcells with db_id=dbcreateinstance
(...........) function and modify their Width and length parameters by
using

db_id~>l and
db_id~>w.

db_id is the database id of the object created,

by this i am able to change the length / width parameters of the pcell
in layout. but when i do a 'Q' ( properties) for the pcell i see that
the W parameter has got updated to the value that i have given from
ciw,but the 'total width' property stiill points the defaut value.

is there some way to vary the total width parameter ....?

can anyone help me in this regard..


thanks in advance.

venkat

 

[Riad KACED]

Hi Venkat,

Modifying W/L with skill does not trigger the callbacks for other
related CDF parameters. You just need to run a skill that does trigger
those callbacks. Luckily enough, Andrew shared a very nice solution
for this. This is the link I got from a quick search in this form.
http://groups.google.com/group/comp.cad.cadence/browse_thread/thread/ed9411ac41eeb868/4dae4e6c08b6278d?lnk=gst&q=trigger+callback#4dae4e6c08b6278d

Regards,
Riad.

 

[S. Badel]

May I add : triggering the CDF callback is not *absolutely* necessary, as long as you set correct
values for the parameters.

In your case you just have to find out what's the name of the "Total Width" parameter. For this you
go to CIW->Tools->CDF->Edit and look at the parameters defined in the CDF of your pcell.




Cheers,
Stéphane


Riad KACED wrote:

Hi Venkat,

Modifying W/L with skill does not trigger the callbacks for other
related CDF parameters. You just need to run a skill that does trigger
those callbacks. Luckily enough, Andrew shared a very nice solution
for this. This is the link I got from a quick search in this form.
http://groups.google.com/group/comp.cad.cadence/browse_thread/thread/ed9411ac41eeb868/4dae4e6c08b6278d?lnk=gst&q=trigger+callback#4dae4e6c08b6278d

Regards,
Riad.