Non-ideal wires have parasitic resistance and capacitance that are captured by SPEF .
Standard Parasitic Exchange Format ( SPEF ) is an IEEE standard for representing parasitic data of wires in a chip in ASCII format .
Non-ideal wires have parasitic resistance and capacitance that are captured by standard .
Standard Parasitic Exchange Format ( SPEF ) is an IEEE standard for representing parasitic data of wires in a chip in ASCII format .