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 xi0.m1: Effective length is less than or equal to zero?? newbie in cadence! 

Last post Fri, Feb 16 2007 9:14 AM by archive. 2 replies.
Started by archive 16 Feb 2007 09:14 AM. Topic has 2 replies.
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  • Fri, Feb 16 2007 9:14 AM

    • archive
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    xi0.m1: Effective length is less than or equal to zero?? newbie in cadence! Reply

    I m in inverter tutorial and getting error = xi0.m1: Effective length is less than or equal to zero. I changed the L & W to a certain range but it did not help. Moreover for an another project i need to vary L & W to a certain range and see its graph simultaneously ... Can i do this? I know i can vary dc ac voltage and all that in analysys section but how can i do this in case of physical parameters such as Length and Width? Can i vary the performance by changing any other parameter? Thanks fr suggestion


    Originally posted in cdnusers.org by dozy_walia
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  • Tue, Feb 20 2007 1:01 PM

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    RE: xi0.m1: Effective length is less than or equal to zero?? newbie in cadence! Reply

    Not sure what you mean by inverter tutorial. Please post your netlist.

    As far as varying W and L and plotting, one way to do it is to make them design variables and run parametric analysis.


    Originally posted in cdnusers.org by EricCDN
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  • Wed, Feb 21 2007 7:01 AM

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    RE: xi0.m1: Effective length is less than or equal to zero?? newbie in cadence! Reply

    Dear Eric ,
    Many thanks for response.
    I was keenly interested in parametric analysis in order to check the parasitics in deep submicron range and hence thought to use Cadence as a tool and started learning it. I started to implement things like OP-AMPs and invertors. Errors are resolved now.
    Do send me if you have anything useful for me .
    Thanks in anticipation
    Sincerely,
    Kulwinder


    Originally posted in cdnusers.org by dozy_walia
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Started by archive at 16 Feb 2007 09:14 AM. Topic has 2 replies.