Current injection logic device with Josephson diode network

Details Current injection logic device with Josephson diode network Current injection logic device with Josephson diode network

1984-02-24

1987-01-06

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307306, 307476, H03K 19195

Patent

active

046348999

ABSTRACT:
A current injection logic device with Josephson diode network comprises three parallel branches, each having three Josephson diodes in series, the first and last diodes of each of the branches being respectively connected to a first and a second main electrodes, said second main electrode being connected to earth. Apart from said network, the device comprises two inputs respectively connected to two intermediate electrodes between two of the end diodes and the two associated adjacent diodes, and an output connected to the first main electrode. In the case of diodes with a leakage resistance well above their normal resistance, it is possible to define input currents, whereof the major part passes into said end diodes. The device has application to the formation of AND or OR gates.

REFERENCES:
patent: 4371796 (1983-02-01), Takada
IBM Technical Disclosure Bulletin, vol. 24, No. 3, 1981, New York--S. M. Faris et al., "Compact Three-Terminal Josephson Switch", pp. 1545-1546, FIGS. 1, 3, p. 1546 from end of that same paragraph.
Japanese Journal of Applied Physics, vol. 19, Supplement 19-1, 1980, Tokyo--S. Takada et al.--"Current Injection Logic Gate with Four Josephson Junctions", pp. 607-611, FIGS. 1, 2; p. 607.

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