In the SI of Physical design, the design will be verified for crosstalk, crosstalk noise, and delays. In the situation when one of the wire switches, the wire will tend to change or affect its neighbor through capacitive coupling. This effect is called Crosstalk. The digital design functionality and its effective performance can be limited by noise. This noise occurs mainly due to the crosstalk with other signals. And it also may occur due to noise on primary inputs or the power supply Vdd. Crosstalk delay effects In the situation when the wire and its neighbor wire are switching simultaneously, the direction in which both are switching will affect the amount of capacitance that must be delivered to the destination and also the