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dbCreateVia() questions: justification and other examples

TrevorB

I am migrating my pcells to IC6, and I am wrestling with the new via model.  Our PDK uses "standard vias", so I understand that I need to use the dbCreateVia function.

Apparently, I can override paramaters, even for standard vias, so I can use the following syntax:

dbCreateVia(cvId viaId list(x y) list(list("cutRows" 2) list("cutColumns" 3)))

However, I need to alter the justification to "lowerLeft".  This leads me to a few questions:
  1. How do I specify the justification using dbCreateVia?
  2. Does anybody have a "fully involved" dbCreateVia example that uses all possible options?  The manual is a little weak, methinks.
  3. How do I change the justification after I have created the via?  I cannot find it any where in the returned viaId, its header, its viaDef, or the header's master.

Thanks!

Trevor

Parents
  • Andrew Beckett

    Please create a service request at Cadence Customer Support. lx functions are not legal in pcells, so that's not an option; I'm not aware of a convenient way of doing this within a pcell, so it would be best to ask via customer support and  then  an enhancement request can be filed, and maybe R&D can come up with a workaround.

    Regards,

    Andrew.

     

Reply
  • Andrew Beckett

    Please create a service request at Cadence Customer Support. lx functions are not legal in pcells, so that's not an option; I'm not aware of a convenient way of doing this within a pcell, so it would be best to ask via customer support and  then  an enhancement request can be filed, and maybe R&D can come up with a workaround.

    Regards,

    Andrew.

     

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