Impact of On-chip Inductance on Power Distribution Network Design for Nanometer Scale Integrated Circuits

  • Authors:
  • Navin Srivastava;Xiaoning Qi;Kaustav Banerjee

  • Affiliations:
  • University of California, Santa Barbara, CA;Sun Microsystems Inc., Sunnyvale, CA;University of California, Santa Barbara, CA

  • Venue:
  • ISQED '05 Proceedings of the 6th International Symposium on Quality of Electronic Design
  • Year:
  • 2005

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Abstract

This work presents a compact methodology for power distribution network design in a nanometer scale VLSI chip using a noise-area tradeoff analysis which considers on-chip inductance effects. This methodology is used to quantitatively demonstrate the importance of considering on-chip power grid inductance, and how its impact scales with technology. While increasing power supply noise levels (which become worse with on-chip inductance) are expected to adversely impact the chip's power supply grid design, this work demonstrates that a power grid optimized with on-chip inductance considerations can lead to significant improvement in the wiring resource utilization.