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When to get spef file

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wowlyy

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Hi, I'm trying to get SPEF for a thermal simulation. It seems that with SoC Encounter, I have to finish detailed routing then after RC extract, I can save SPEF. Can I get SPEF at earlier stage, such as after placement? If Encounter can't do that, is there any other tools can do that? What data is needed before I get SPEF and till when I can get SPEF?

Thank you!
 

phoenixpavan

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Hi wowlyy,

I dont think you can extract SPEF earlier as to extract the parasitics information you need the layout details of the design..


cheers,
 

wowlyy

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Thanks Phoenixpavan. My friend told me that the SPEF can be extracted after global routing, but I still can't do it with SoC Encounter. Is it true that we can get SPEF after global routing?
 

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