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Assura LVS shows "n_psub_StampErrorMult" error

AdeelAnwar

I'm designing a PA layout in Virtuoso 6.1.8.-64b

My circuit contains mim capacitors, rphpoly_rf resistor along with 2V rf_NMOS and 2 Sporal_std_mu_x_20k. I get these errors when I place a second Inductor. when I ran LVS, it showed these three errors:

> n_psub_StampErrorMult

>psub_term_StampErrorMult

>psub_StampErrorMult

I don't have a clear idea of what these errors mean. I tried to google it but found no helpful information. I checked a couple of times in my layout to find any short or floating body. I do not see any. Could you explain the error and possible ways to solve this?

Thank you

  • Andrew Beckett

    Given the name of the errors, it sounds as if there are more than one metal connection into the substrate (to different nodes), but this is just a guess. The actual errors will be dependent upon the rule deck from the foundry - you should check the PDK/rule deck documentation and if it's unclear, contact the foundry support as this will be specific to whatever technology you're using.

    Andrew

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