Skew Definition - 2023.2 English

Clock skew is the insertion delay difference between the destination clock path and the source clock path: (1) from their common point in the design; (2) to, respectively, the endpoint and startpoint sequential cell clock pins.

In the equation below:

• Tcj is the delay from the common node to the endpoint clock pin.
• Tci is the delay from the common node to the startpoint clock pin:

  Tskewi,j = Tcj- Tci