Home > Community > Forums > Custom IC Design > ADE L | post-layout simulation | input.scs error | missing model

Email

* Required Fields

Recipients email * (separate multiple addresses with commas)

Your name *

Your email *

Message *

Contact Us

* Required Fields
First Name *

Last Name *

Email *

Company / Institution *

Comments: *

 ADE L | post-layout simulation | input.scs error | missing model 

Last post Tue, Jul 31 2012 2:50 AM by Andrew Beckett. 4 replies.
Started by pitter 07 Nov 2009 05:58 AM. Topic has 4 replies and 3655 views
Page 1 of 1 (5 items)
Sort Posts:
  • Sat, Nov 7 2009 5:58 AM

    • pitter
    • Top 500 Contributor
    • Joined on Tue, Nov 3 2009
    • Warsaw, Poland
    • Posts 29
    • Points 485
    ADE L | post-layout simulation | input.scs error | missing model Reply

     Hi,

    after successful RLC extraction I got a av_extracted view, which I set in ADE Setup->Environment... in the Switch View List in order to perform post-layout simulation. The netlist is created without any error. However, when I start to run a transient simulation I get te following error:



    << ERROR (SFE-23): "input.scs" 48743: ra4289 is an instance of an undefined model met4.>>

     There is a series of errors actually, with different model names (met4, met1, poly1) and number coming after "input.scs" in the above quoted error line.

    I thought, the PDK (AMS C35 0.35um process) should provide such models, but I cannot find any in the Hit Kit directory.

     Thanks for help in advance,

    Kind Regards,

     

    pitter.

     

    Filed under: , , ,
    • Post Points: 20
  • Sat, Nov 7 2009 7:47 AM

    • Quek
    • Top 10 Contributor
    • Joined on Wed, Oct 14 2009
    • Singapore, 00-SG
    • Posts 1,084
    • Points 16,515
    Re: ADE L | post-layout simulation | input.scs error | missing model Reply

    Hi Pitter

    Perhaps this can help to solve the problem:
    a. In the QRC form, go to "Netlisting" tab
    b. For "Parasitic Resistor Models", use "Include as comment" instead of "Include Model"

    Re-generate the extracted view and retry spectre simulation. : )

    Best regards
    Quek

    • Post Points: 35
  • Tue, Nov 10 2009 1:12 AM

    • pitter
    • Top 500 Contributor
    • Joined on Tue, Nov 3 2009
    • Warsaw, Poland
    • Posts 29
    • Points 485
    Re: ADE L | post-layout simulation | input.scs error | missing model Reply

    The problem solved!

    Many thanks Quek

    • Post Points: 5
  • Tue, Jul 31 2012 2:46 AM

    • gentle
    • Not Ranked
    • Joined on Sat, Jul 14 2012
    • Posts 4
    • Points 35
    Re: ADE L | post-layout simulation | input.scs error | missing model Reply

     Hi ,

    I was having the same problem and was  able to resolve it using above steps.

    However the problem is now that i am getting same delay between input and ouput in both the simulation(prelayout and postlayout simulation) which ideally is not possible.

    does this "Include as comment" made the parasitics unaccounted.

     

    • Post Points: 20
  • Tue, Jul 31 2012 2:50 AM

    Re: ADE L | post-layout simulation | input.scs error | missing model Reply

    The include as comment only means that the "model name" (the type or layer that originated the parasitic) is included as a comment - the actual parasitic is included in both cases.

    Not sure why your pre and post layout simulation results would be the same.

    Andrew.

    • Post Points: 5
Page 1 of 1 (5 items)
Sort Posts:
Started by pitter at 07 Nov 2009 05:58 AM. Topic has 4 replies.