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 C-only RCX extraction question 

Last post Thu, Sep 18 2008 1:54 PM by Heartilly2000. 0 replies.
Started by Heartilly2000 18 Sep 2008 01:54 PM. Topic has 0 replies and 2124 views
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  • Thu, Sep 18 2008 1:54 PM

    C-only RCX extraction question Reply

    Hi,

     I ran a post-layout C-only RCX extraction to generate an av_extracted cell and probed each of the nodes of my layout to get the capitances at each node.  The weird thing is if I use ideal caps with the values of these capacitances and place them on an identical schematic and run simulations, the results are vastly different than what I get if I generate an av_analog_extracted cell and run a simulation through config.  I've made sure the schematic from config is different from the one that I added ideal caps to.  Why is there this discrepancy?  Is the capacitance probed from av_extracted a distributed capacitance that cannot be simply modeled by an ideal cap placed at the corresponding node of the schematic?

     

    Thanks,

    Daisy

    • Post Points: 5
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Started by Heartilly2000 at 18 Sep 2008 01:54 PM. Topic has 0 replies.