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parasitic exclusion not working in PAD

Pirate King

In this previous post link at the end of this mail , Andrew demonstrates in the Parasitic Aware Design tool, how the combination of R and C cell filers then individual net filters set to "none", net  parasitics could be excluded  from a complete RC extraction. I tried this and when I netlist the refined extracted view I still see parasitics on the excluded nets.

Here is the filters setup and the refined extracted netlist showing a parasitic cap on net VFB

  

Here is the original post with example from Andrew;

Parasitic exclusion - Custom IC Design - Cadence Technology Forums - Cadence Community

IC6.1.8-64b.500.19

  • Pirate King

    I confirm that as the linked post suggested that you cannot exclude parasitic C nets but you can exclude a particular parasitic cap which needs a filter on both nets either side of the cap both set to "none". So this issue is now resolved

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