A new placement level wirability estimate with measurements

  • Authors:
  • Steve Meyer

  • Affiliations:
  • -

  • Venue:
  • ACM SIGDA Newsletter
  • Year:
  • 1990

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Abstract

An extension of the wirability estimate concept to master slice placement is presented. This estimate is usable on individual circuits, produces detailed wire requirement maps, but requires target designs to be at least partially placed. The main innovation is the discovery of an outer rectangle estimate that separates basic wire requirements from routing details. The estimate averages wires within one chip but is inapplicable to chip type wire space modeling. Steiner tree net decomposition, the half perimeter wire length estimate, and potential wire requirement reduction from a third metal layer are evaluated.