What is timing closure flow? What is the order of fixing?

Q: "What is timing closure flow? What is the order of fixing?"

"oDRV – Setup -Hold\nFixing DEV first can help reduce setup violations as well. Usually fix setup first as fixing setup requires touching many cells across timing path. Swapping and sizing on full path based on slack number. This can impact hold violations. For hold fix, usually we fix at endpoint, insert buffer or create long route. Touching endpoint has less to no impact on setup hence hold is fixed at last. "

on 22-08-2025 in STA

oDRV – Setup -Hold

Fixing DEV first can help reduce setup violations as well.
Usually fix setup first as fixing setup requires touching many cells across timing path. Swapping and sizing on full path based on slack number. This can impact hold violations.
For hold fix, usually we fix at endpoint, insert buffer or create long route. Touching endpoint has less to no impact on setup hence hold is fixed at last.

All Questions

We value your privacy

Manage Cookie Preferences