Freescale Semiconductor,inc.

Rafi Levy

Vladimir P Zolotov

Chanhee Oh

David Theodore Blaauw

Rajendran Panda

Murat R Becer

Amir Grinshpon

Ilan Algor

Supamas Sirichotiyakul

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 delaycorresponding to any portionof 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 (ato a+u) () when uncertainty is included.

Pessimism reduction in crosstalk noise aware static timing analysis

A solution to perform cross coupling delay characterization for integrated circuits and other microprocessor applications. The invention properly models the integrated circuit in various configurations at various times to accommodate the non-linearities associated with driver circuitry and the undesirable capacitive coupling between nets within the integrated circuit, specifically those that are located within close proximity to one another and that generate deleterious effects of the transitions of the drivers from low to high, and from high to low. The invention provides for a computationally efficient solution to perform the delay characterization of the speeding up and slowing down of individual transition operations within the microprocessor. Accurate delay characterization provides for design engineers an accurate description of the worst case and best case scenarios of the integrated circuit or microprocessor that is needed for various applications such as the integration of the integrated circuit and microprocessor into a larger system.

Cross coupling delay characterization for integrated circuits

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Tel Aviv, Israel

Rafi Levy