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 Inverter gpdk180 DRC error. NWELLterm NWVIA : No Stamped Connections 

Last post Mon, Sep 24 2012 10:34 AM by althoff. 2 replies.
Started by althoff 10 Sep 2012 12:10 PM. Topic has 2 replies and 1725 views
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  • Mon, Sep 10 2012 12:10 PM

    • althoff
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    • Joined on Mon, Sep 10 2012
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    • Points 45
    Inverter gpdk180 DRC error. NWELLterm NWVIA : No Stamped Connections Reply

    Hello,

    I`m new, studying electronics and this beginning has been though. 

    I`ve tried to create a Inverted using gpdk180 technology, but the "NWELLterm NWVIA : No Stamped Connections" keeps popping up every time I make the layout for the PMOS.

    I similar problem was occurring with the NMOS part. It showed up the "PSUB SUBVIA : No Stamped Connections." and I handled that with a M1_PIMP connection. The same solution (with M1_Nwell) has not happened for the PMOS in the INVERTER. Everytime I run the DRC it gives me that error and it highlights the PMOS i`ve created. I`ve tried to solve it in different ways, but it seems I dont quite understand what is the NWVIA that the NBurried requires to be connected with the M1.

    Any1 have some thoughts?

    I`ve put some pics so every1 can see what i`m trying to create.

    Tnx,

    DRC Shows Error

    Project 

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    • Post Points: 20
  • Sat, Sep 22 2012 6:09 PM

    • Quek
    • Top 10 Contributor
    • Joined on Wed, Oct 14 2009
    • Singapore, 00-SG
    • Posts 1,051
    • Points 15,990
    Re: Inverter gpdk180 DRC error. NWELLterm NWVIA : No Stamped Connections Reply

    Hi Althoff

    I think using M1_Nwell via should have solved the problem. Would you please post a picture of your inverter?

    Thanks
    Quek

    • Post Points: 20
  • Mon, Sep 24 2012 10:34 AM

    • althoff
    • Not Ranked
    • Joined on Mon, Sep 10 2012
    • Posts 3
    • Points 45
    Re: Inverter gpdk180 DRC error. NWELLterm NWVIA : No Stamped Connections Reply
    Hey, I solved it.

    It was actually quite simple. The pics are posted bellow, I dont know why they didnt appear on the post, but if you grap the URL and put it in the browser it will redirect you.

    Apparently, since I was not using the PMOS and NMOS from the gpdk180 lib, I shouldnt have used another via. I should've construtec the via inside the Nwell from the PMOS, instead of creating another via with a new Nwell or using a via M1_Nwell.

    Thanks, though, for your interest in my problem.
    • Post Points: 5
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Started by althoff at 10 Sep 2012 12:10 PM. Topic has 2 replies.