Abstract: Based on the analysis of crosstalk noise and interconnect delay, in this paper, we analyze crosstalk delay and crosstalk delay change curve. We point out that it is not always true that the maximum crosstalk delay change occurs in the time corresponding to the crosstalk noise peak, and the crosstalk noise can't be seen as a mirror image of the delay change curve(DCC). A sensitivity analysis is taken to determine how important several parameters are to DCC generation. The SPICE simulation results confirm the accuracy of our analysis.