Patent ID: 7788079

Claim:
A method for obtaining an equivalent circuit model of a multi-layer circuit, comprising simulating the multi-layer circuit using an electromagnetic field analysis to provide a coupling network including one or more internal nodes and one or more external nodes; and simplifying, via a processor, the coupling network by removing one or more removable nodes from the coupling network iteratively to generate the equivalent circuit model, wherein the removable nodes are nodes among the internal nodes of the coupling network, each of which includes a reference value lower than a predetermined cut-off value, wherein the reference value of a node of the internal nodes is defined as ↓ ω _ max 2 ⁢ L t ⁢ C t ↓ where ω max is the highest angular frequency of interest, | | refers to absolute value, and L t ,C t , are the total inductance and capacitance connected to the node, respectively.