New phase-mode logic gates with large operating regions of circuit parameters

Takeshi Onomi, Kiyoshi Yanagisawa, Koji Nakajima

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

We propose new phase-mode logic gates with large operating regions of circuit parameters. In the phase-mode logic, logic circuits are realized by combination of ICF(INHIBIT controlled by fluxon) gates. The function of the ICF gate can be achieved by the two gates which are an INHIBIT gate and an AND gate. These two gates are fabricated by NEC 2.5kA/cm 2 Nb/AlOx/Nb standard process and successfully demonstrated. A Monte-Carlo calculation is used for evaluating yields of the gates. From 1000 calculations for each gates, we show that each yield of the INHIBIT gate and the AND gate does not decrease with increasing σ=7% and σ=9% which are the standard deviations of the parameter spreads. A realization of high-reliability LSI circuits will be expected by using these gates.

Original languageEnglish
Pages (from-to)974-977
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume11
Issue number1 I
DOIs
Publication statusPublished - 2001 Mar
Event2000 Applied Superconductivity Conference - Virginia Beach, VA, United States
Duration: 2000 Sep 172000 Sep 22

Keywords

  • Logic gate
  • Phase mode
  • Single flux quantum
  • Superconductive device

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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