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Automatic routing does not work

Majid Rafei

Hi,

I have added a PDK (tsmcN90nm), in layout when I run the automatic routing, nothing done! Do you know what is the reason and how can I overcome it?

thanks.

  • Hi Majid,

    This is related to the same issues that you described in your other post.

    Your techfile needs a section called "functions" that contains all the routing layers to be used.

    In addition, you need a constraint group (default: virtuosoDefaultSetup) that is used to tell the router which vias and layers to use.

    Unless you want to rebuild your techfile I would suggest using a supported PDK from TSMC. Not a partially converted techlib.

     

    Colin

  • Thanks a lot for your reply. I do what you say.

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