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To calculate the length of the wire in cadence

Uday Reddy

I want to calculate the length of the wire in cadence and with that I want to calculate the parasitic values(resistance and capacitance). Can you help me with this problem ASAP?

Thanks,

Kindly
Uday reddy

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  • Andrew Beckett

    I didn't say that it was difficult for EAD - quite the opposite. I said EAD was well suited for this task. The "I doubt it was in response to your question about whether there is a SKILL function that could do this more efficiently.

    QRC really requires you to have a layout that is LVS clean, and for you to extract the entire layout (yes, there are options to extract only a sub-set of nets, but it effectively has to do a lot of the work regardless, and just not output all the parasitics). EAD on the other hand requires the design to have been done in a Layout XL compliant way, but doesn't require the layout to be complete, and can really extract just the nets you select.

    Regards,

    Andrew

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  • Andrew Beckett

    I didn't say that it was difficult for EAD - quite the opposite. I said EAD was well suited for this task. The "I doubt it was in response to your question about whether there is a SKILL function that could do this more efficiently.

    QRC really requires you to have a layout that is LVS clean, and for you to extract the entire layout (yes, there are options to extract only a sub-set of nets, but it effectively has to do a lot of the work regardless, and just not output all the parasitics). EAD on the other hand requires the design to have been done in a Layout XL compliant way, but doesn't require the layout to be complete, and can really extract just the nets you select.

    Regards,

    Andrew

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