Blade and Razor: Cell and interconnect delay analysis using current-based models

John F. Croix, D. F. Wong

Research output: Contribution to journalConference article


In order to adequately account for nanometer effects during timing analysis, archaic standard cell models must be replaced. Simplifying assumptions used during characterization, such as nearly linear voltage inputs or lumped-capacitance loads, are no longer valid. Signal integrity analysis further complicates the characterization process because the typical voltage waveform used during characterization does not contain a noise component. This paper introduces two new technologies for standard cell and interconnect timing analysis: Blade and Razor. Blade is a novel cell model and runtime engine based on current flow. Razor is the accompanying interconnect model. Both Blade and Razor produce and consume arbitrary voltage waveforms with near-SPICE accuracy at speeds tens of thousands of times faster than SPICE.

Original languageEnglish (US)
Pages (from-to)386-389
Number of pages4
JournalProceedings - Design Automation Conference
StatePublished - Aug 18 2003
EventProceedings of the 40th Design Automation Conference - Anaheim, CA, United States
Duration: Jun 2 2003Jun 6 2003


  • Blade
  • Cell model
  • Current-based model
  • Interconnect model
  • Razor
  • Recursive convolution
  • Timing analysis

ASJC Scopus subject areas

  • Hardware and Architecture
  • Control and Systems Engineering

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