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Timing Closure on metal filled GDS

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aditya1579

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Hi,

It is said that timing should be checked even on the metal-filled gds since the metal fill can have some effects on the timing of the design. How are these timing checks carried out, in which tool ?

Can you please elaborate ?

Thanks,
Aditya
 

In cadence environment (innovus), you are supposed to import a DEF file with the externally-generated fill shapes into the design. timing analysis takes care of the rest.
 

How do we import the externally generated fill shapes into the design ? Since the metal fill would be done in Calibre
 

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