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efabless / openlane2

The next generation of OpenLane, rewritten from scratch with a modular architecture
https://openlane2.readthedocs.io/
Apache License 2.0
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Study correlation between timing values before and after routing #561

Open donn opened 1 month ago

donn commented 1 month ago

Description

Timing before routing uses estimated parasitics that are correlated but not are ultimately not close enough to the final parasitics.

Proposal

We should tweak the RC values so they can be as close as possible.