Pessimism reduction in crosstalk noise aware static timing analysis

Processes and systems for reducing pessimism in cross talk noise aware static timing analysis and thus resulting false path failures use either or both of effective delta delay noise and path based delay noise analysis. Effective delta delay determines an impact on victim timing of an action by aggressors that occur during a region where victim and aggressor timing windows overlap and determines an effective delta delay corresponding to any portion of the impact on victim timing that extends beyond the victim timing window. The effective delta delay is used to adjust the victim timing window. Path based delta delay determines an uncertainty in a switching time corresponding to a particular path for a victim resulting from an action (switching) by aggressors that occurs at the switching time , i.e. during a switching time window (a to a+u) when uncertainty is included.