SPEF to be used for Power Analysis

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GDesign

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Hi All,
I am working on 40nm technology.
I am using StarXtract to make SPEF files. In this tool it is possible to choose between RC and C extraction. I am wondering what SPEFs is more correct to use inside PrimeRail: SPEF extracted with RC o C ?

Thanks
 


RC is the standard.
 

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