Impact of Low-Impedance Substrate on Power Supply Integrity

  • Authors:
  • Rajendran Panda;Savithri Sundareswaran;David Blaauw

  • Affiliations:
  • Motorola, Austin;Motorola, Austin;University of Michigan, Ann Arbor

  • Venue:
  • IEEE Design & Test
  • Year:
  • 2003

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Abstract

Editor's note:Although it is tempting to think of the power grid as an independent medium of the transfer of energy from the package to the devices in the IC, some second-order technology-related effects can sometimes cause unforeseen problems. This article focuses especially on the relationship of the power delivery system to the silicon substrate properties, and shows how a low-impedance substrate can make a substantial difference in the noise generated by the power grid.ýSani R. Nassif, IBM Austin Research Laboratory