How to efficiently capture on-chip inductance effects: introducing a new circuit element K
Proceedings of the 2000 IEEE/ACM international conference on Computer-aided design
PRIMA: passive reduced-order interconnect macromodeling algorithm
IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
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This paper presents a wide frequency range interconnect extraction and analysis methodology. First, an improved reluctance-based extraction algorithm is proposed to generate compact interconnect models at some sample frequencies. Then, DLSCF (Discrete Least Square Curve Fitting) techniques are employed to produce approximation polynomials to calculate parasitics at other frequencies. Finally, after transferring those approximation polynomials into power series of s and substituting them into the MNA (Modified Nodal Analysis) formula, we develop and apply the WIFRIM (Wide Frequency Range Interconnect Moment Matching) algorithm to calculate moments of arbitrary orders. Since WIFRIM only needs to decompose a sparse conductance matrix once, it results in significant speedup while providing accuracy within 1% error.