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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
  • Tsien

    Just wondering if you were able to come up with a solution to your problem?  I would also like to write some skill code to convert one via type to another.  But it seems like the only way possible in IC6 is to delete the old via and recreate a new one.  But to create an identical via to the original, I would need to set the parameters such as justification.

     Thanks.

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  • Tsien

    Just wondering if you were able to come up with a solution to your problem?  I would also like to write some skill code to convert one via type to another.  But it seems like the only way possible in IC6 is to delete the old via and recreate a new one.  But to create an identical via to the original, I would need to set the parameters such as justification.

     Thanks.

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