Patent Document ID: 8656329
Application ID: 12979137
Patent Flag: 1

Claim One:
1. A method for generating a programmably implemented model for electrically emulating a power delivery network serving an integrated circuit (IC) core in an electronic system, the method comprising: using a computer to establish a power integrity (PI) topology defining an electrical circuit having interconnected models for a voltage regulator module generating at least one predetermined supply voltage level and for a conductive power rail portion of the power delivery network (PDN); electrically interconnecting to said conductive power rail portion model a first behavioral model generating electrical coupling effects upon an IC portion of the PDN due to current consumption characteristics of the IC core during a simulated operation of the electrical circuit; electrically interconnecting to said conductive power rail portion model a second behavioral model generating electrical coupling effects upon an IO portion of the PDN due to current consumption of an IO interface buffer driving an output signal of the electronic system during the simulated operation of the electrical circuit generating a layout of the PDN and identifying a set of reserved x-y positions on said PDN layout for prospective decoupling capacitors; executing a solver simulation based on said PDN layout to generate an extracted model having said reserved x-y positions defined as terminals of said extracted model; updating said PI topology to incorporate said extracted model in place of said conductive power rail portion model; executing, by using a computer, AC and transient simulation sweeps for said PI topology in exploratory manner with different sets of decoupling capacitors selectively connected to said terminals of said extracted model; and, determining an optimal set of decoupling capacitor positions and values responsive to said AC and transient simulation sweeps.