Frequency selective model order reduction via spectral zero projection

Mehboob Alam, Arthur Nieuwoudt, Yehia Massoud

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations


As process technology continues to scale into the nanoscale regime, interconnect plays an ever increasing role in determining VLSI system performance. As the complexity of these systems increases, reduced order modeling becomes critical. In this paper, we develop a new method for the model order reduction of interconnect using frequency restrictive selection of interpolation points based on the spectral-zeros of the RLC interconnect model's transfer function. The methodology uses the imaginary part of spectral zeros for frequency selective projection and provides stable as well as passive reduced order models for interconnect in VLSI systems. For large order interconnect models with realistic RLC parameters, the results indicate that our method provides more accurate approximations than techniques based on balanced truncation and moment matching with excellent agreement with the original system's transfer function. © 2007 IEEE.
Original languageEnglish (US)
Title of host publicationProceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC
Number of pages5
StatePublished - Dec 1 2007
Externally publishedYes


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