Applications and design considerations for optical interconnects in VLSI

L. Bergman, A. Johnston, R. Nixon, S. Esener, C. Guest, P. Yu, T. Drabik, M. Feldman, S. H. Lee

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


This paper introduces new applications and design tradeoffs anticipated for free space optical interconnections of VLSI chips. New implementations of VLSI functions are described that use the capability of making optical inputs at any point on a chip, and take advantage of greater flexibility in on-chip signal routing. These include N-port addressable memories, CPU clock phase distribution, hardware multipliers, dynamic memory refresh, as well as enhanced testability. Fault tolerance and production yields may be improved by reprogramming the optical imaging system to circumvent defective elements. These attributes, as well as those related to performance alone, will affect the design methodology of future VLSI ICs. This paper will focus on identifying the design issues, their possible solution, and their impact on VLSI design techniques.

Original languageEnglish (US)
Pages (from-to)117-126
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Jun 9 1986
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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