Error in Using Calibre for DRC

[bearsarebears]

Hi,

I have a problem using Calibre for DRC. I'm using encounter followed
by virtuoso to stream out the physical gds. However, when I use
calibre for DRC I obtain the following error:

ERROR: Cell VIA2_C$$168816684 is referenced but not defined.


*** Calibre finished with Exit Code: 4 ***

How should I solve this problem?

Thank you.

 

Hi,
May be problem in your PCells.
Check Virtuoso Check-Out Options: icfb->File->Export->Strem->Options
You must set "Convert PCells to Geometry"

Regards
Sergey

 

[gmc_99]

Hi,

Another option is Encounter uses different vias in it's implementation
than are normaly in the library. These need to be in the library (tech
file) that you import the design into. If these are missing then you
will see this in the kind of thing. First open up the layout in
virtuoso and check if the vias exist or not. If they are not there
then you need to add them in.

What I did last time was export the tech file for the tech library you
are using (tools->techfile manager->dump). Then merge in these vias -
look at the bottom of the tech file for via definitions. Load in this
new tech file to a new empty library and then import the Encounter
data in to another new lib with this new tech file library as the
techfile.

I'm not sure where we got these via definitions from though - ask your
Encounter AE or you may find that you have a digital LEF in the PDK/
library that contains them - if so import the LEF into a new library
export the tech and merge as above.

cheers
gmc

On 17 Dec, 12:38, bearsarebears <bearsarebe...@gmail.com> wrote:

Hi,

I have a problem using Calibre for DRC.  I'm using encounter followed
by virtuoso to stream out the physical gds.  However, when I use
calibre for DRC I obtain the following error:

ERROR: Cell VIA2_C$$168816684 is referenced but not defined.

*** Calibre finished with Exit Code: 4 ***

How should I solve this problem?

Thank you.