On Dynamic Delay and Repeater Insertion in Distributed Capacitively-Coupled Interconnects

Dinesh Pamunuwa, Hannu Tenhunen

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

5 Citations (Scopus)


Repeater insertion is a well established technique to minimise the propagation delay over long resistive interconnects. In deep sub-micron technologies, as the wires are spaced ever closer and signal rise and fall times go into the sub-nanosecond region, increased crosstalk has implications for the data throughput and signal integrity. Depending on the data correlation on the coupled lines, the delay can either decrease or increase. We show that in uniform coupled lines, the response for several important switching patterns has a dominant pole characteristic. The effect of repeater insertion including optimal repeater insertion for minimising delay with worst-case cross-talk, and area constrained optimisation is considered. All equations are checked against a dynamic circuit simulator (SPECTRE).
Original languageUndefined/Unknown
Title of host publicationProc. International Symposium on Quality Electronic Design, (ISQED)
Number of pages6
Publication statusPublished - 1 Mar 2002

Structured keywords

  • Photonics and Quantum


  • VLSI
  • capacitance
  • circuit optimisation
  • circuit simulation
  • crosstalk
  • delays
  • integrated circuit interconnections
  • integrated circuit modelling
  • repeaters
  • SPECTRE dynamic circuit simulator
  • area constrained optimisation
  • coupled lines
  • data correlation
  • data throughput
  • delay
  • delay minimisation
  • distributed capacitively coupled interconnects
  • dominant pole characteristic
  • dynamic delay
  • optimal repeater insertion
  • propagation delay
  • repeater insertion
  • resistive interconnects
  • signal fall times
  • signal integrity
  • signal rise times
  • switching patterns
  • wire spacing
  • Coupling circuits
  • Crosstalk
  • Delay effects
  • Delay lines
  • Integrated circuit interconnections
  • Propagation delay
  • Repeaters
  • Space technology
  • Throughput
  • Wires

Cite this