In this article we will discuss in details about the affects in cell delay calculation and interconnect delay calculation.

** Cell Delay** depends upon input transition and output fanout.

• Timing delay between input pin and output pin of a cell.
• cell delay information is contained in the library of a cell.

Net Delay Interconnect delay between driver pin and a load pin.

To calculate NET delay we would require below info.

• characteristics of driver cell.
• load characteristics of receiver cell.
• RC value of the net.