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How do I get more hold time slacks after PAR with Astro.

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wkong_zhu

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Because my library is not so accurate, I want to at least 0.5ns hold time slack after Astro APR, but Astro only meets hold time spec and do no more effort to get more slack. How can I make Astro to get more hold time slacks.
 

Hi wkong_zhu,
I can try PC and PKS to do post-routing optimization, using best case library , setting minimium wire length and slack criteria.
 

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