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Regarding Captables

Ganga111AtFPS

 Hi,

what is the mail difference between basic captables and extended captables?

I've opend captables file and I observed the basic tables and I understood.

But on what basis the Extended captables were generated?

  • Basic Capacitance Table - Provides a table of spacing versus capacitance information for each layer.

    Extended Capacitance Table - Provides encoded extraction patterns that are derived using a 3D field solver which provides much greater accuracy during detailed extraction.

    Regards,

    Brian

  • Hi,

    you based on what we'l get the extended captables?

    I mean to get capacitance values in 3D field we should have routed design but we have not yet routed our design, then how can we have extended caps in captables?

    I thought if we are working on a design which is having 1million gate count we might have used  the captables of already routed design which is having approximately 1million gate count.

    Please Explain in detail. 

  • Foundries will typically provide the cap table for the specific process. If you need to generate the captable, create an ICT file and use the generateCapTbl command. 

     

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