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

Takeshi Onomi; Kiyoshi Yanagisawa; Koji Nakajima

doi:10.1109/77.919511

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

Takeshi Onomi, Kiyoshi Yanagisawa, Koji Nakajima

Research Institute of Electrical Communication (RIEC)

Research output: Contribution to journal › Conference article › peer-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 language	English
Pages (from-to)	974-977
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	11
Issue number	1 I
DOIs	https://doi.org/10.1109/77.919511
Publication status	Published - 2001 Mar
Event	2000 Applied Superconductivity Conference - Virginia Beach, VA, United States Duration: 2000 Sep 17 → 2000 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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title = "New phase-mode logic gates with large operating regions of circuit parameters",

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.",

keywords = "Logic gate, Phase mode, Single flux quantum, Superconductive device",

author = "Takeshi Onomi and Kiyoshi Yanagisawa and Koji Nakajima",

note = "Funding Information: Manuscript received Sept. 18,2000. This work was supported in part by Special Coordination Funds for promoting Science and Technology of the Science and Technology Agency of the Japanese Government.; 2000 Applied Superconductivity Conference ; Conference date: 17-09-2000 Through 22-09-2000",

year = "2001",

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T1 - New phase-mode logic gates with large operating regions of circuit parameters

AU - Onomi, Takeshi

AU - Yanagisawa, Kiyoshi

AU - Nakajima, Koji

N1 - Funding Information: Manuscript received Sept. 18,2000. This work was supported in part by Special Coordination Funds for promoting Science and Technology of the Science and Technology Agency of the Japanese Government.

PY - 2001/3

Y1 - 2001/3

N2 - 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.

AB - 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.

KW - Logic gate

KW - Phase mode

KW - Single flux quantum

KW - Superconductive device

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