Optimal layer assignment algorithm for minimizing crosstalk for three layer VHV channel routing

Shashidhar Thakur, Kai Yuan Chao, D. F. Wong

Research output: Contribution to journalConference articlepeer-review

Abstract

With the increasing density of VLSI circuits, the interconnection wires are getting packed even closer. This has increased the effect of interaction between these wires on circuit performance and hence, the importance of controlling crosstalk. We consider the gridded channel routing problem where, specifically, the channel has 3 routing layers in the VHV configuration. Given a horizontal track assignment for the nets, we present an optimal algorithm for minimizing the crosstalk between vertical wiring segments in the channel by finding an optimal vertical layer assignment for them. We show an algorithm that minimizes total crosstalk between between wires on the same V layer on adjacent columns of the grid in O(v log v) time using O(v) memory, where the channel has v columns. We then extend this algorithm to consider crosstalk between wires in non-adjacent columns and between wires on different layers.

Original languageEnglish (US)
Pages (from-to)207-210
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
Volume1
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1995 IEEE International Symposium on Circuits and Systems-ISCAS 95. Part 3 (of 3) - Seattle, WA, USA
Duration: Apr 30 1995May 3 1995

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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