A new multi-ramp driver model with RLC interconnect load

  • Authors:
  • Lakshmi K. Vakati;Janet Wang

  • Affiliations:
  • University of Arizona, Tucson, AZ;University of Arizona, Tucson, AZ

  • Venue:
  • Proceedings of the 2004 international symposium on Physical design
  • Year:
  • 2004

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Abstract

As the feature size is scaled down to 90 nm and below, fundamental modeling changes, such as the nonlinearity and higher frequencies of signals, require driver-load models to take into account propagation delay and slew rates. The conventional single Ceff (one-ramp) with lumped RC model is no longer accurate. In this paper we propose a new multi-ramp model with general RLC interconnects as loads. This new model accurately predicts both the 50% delay and the overall output waveform shape with inductance effects.