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Other CAD Tools >> Physical Verification, Extraction and Analysis >> Assura: Join nets with different names
https://designers-guide.org/forum/YaBB.pl?num=1289555846

Message started by rho on Nov 12^th, 2010, 1:57am

Title: Assura: Join nets with different names
Post by rho on Nov 12^th, 2010, 1:57am

Hi all,

I have a sub-cell layout with separated bulk and GND routings. So the source and bulk for all NMOS is routed separated and both lines have different netnames. Now there is a p-well that is conneted to the GND line and Assura sees that as a soft connect between bulk and GND (which in fact it is) and this generates errors.
Is there a way to connect these two nets just for LVS checks and not in the layout?
Is there a function where I can connect the GND-net with the bulk-net? I know the "joinablenet" function but this only works for nets with the same name.

Thanks for your help!

Title: Re: Assura: Join nets with different names
Post by bernd on Nov 19^th, 2010, 8:08am

You could use the changeLabel function
and do something like
changeLabel( "gnd1" "commongnd:G" )
changeLabel( "gnd2" "commongnd:G" )
Then you should be alble to join the nets.

*

Title: Re: Assura: Join nets with different names
Post by rho on Jun 21^st, 2011, 5:08am

Hi Bernd,
Sorry for the late reply. I wasn't aware of your response. (forgot to activate the notification :-[ ).

Does this mean that the nets in the layout as well as in the schematic are renamed for the checks (but not in the actual schematic and/or layout)? Or does it only work for the layout side of the design?