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Cadence Virtuoso automatic routing wire width consideration

Mamad

Hi,
I have a LNA layout. I need to use Layout GXL automatic router in Virtuoso to route the nets while the interconnect width has been considered. I mean I want to give width of net 1 as 200nm, the second one 400nm and so on.

Is there any way to do such automatic routing width consideration in GXL?

Thanks 

  • ColinSutlieff

    Hi,

    yes you can do this.

    In the Navigator select a net.

    In the Constraint Manager Assistant, click the second icon pull-down.

    Select routing->Process rule override.

    You can now edit the constraint (in the lower half of the Assistant.)

    You can specify widths, spacings, layers to use etc.

    Do the same for your second net.

    If you have lots of nets with the same widths,spacings etc, try using the class constraint instead.

    Hope this helps.

    Colin

  • Mamad
    Hi,
    I have another question.
    Is there any to do electromigration-aware routing for analog circuits?

    Thanks

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