Patent ID: 8190418

Claim:
A method for producing an integrated circuit (IC) containing a time-dependent-impedance component, the method comprising: obtaining time-dependent impedance values for the component; creating a model of the component, the model including a variable impedance and a variable voltage source, the creating the model including, determining a value of a current flowing through the component based on a first time-dependent impedance value assigned to the variable impedance and a first voltage value assigned to the variable voltage source; assigning a second time-dependent impedance value to the variable impedance, and avoiding injection of current into the model by assigning a second voltage value to the variable voltage source such that a current through the component is equal to the determined value of the current flowing through component before assigning the second time-dependent impedance value to the variable impedance; executing multiple simulations of the IC using the model, each of the multiple simulations having a corresponding IC layout; and selecting an IC layout that generated a lowest noise profile for the IC in the executed multiple simulations.