Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1983-02-22
1986-04-29
James, Andrew J.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
357 8, 357 61, 357 80, 307306, H01L 3922, H01L 2928, H01L 29161, H01L 3902
Patent
active
045860629
ABSTRACT:
Microcircuits composed of a plurality of alternating conducting and insulating regions are formed in a substrate of an organic quasi-unidimensional conductor such as .DELTA..sup.2,2 bi-4,5-dimethyl-1,3-diselenolylidene upon irradiation of the substrate with a precise beam of electrons having an energy of at least 1 keV, preferably at least 8 keV, which forms the insulating regions. When exposed to cryogenic temperatures the non-irradated conducting regions become super conducting. Using electron beam irradiations, sub-micronic resolution as low as 100 .ANG. can be achieved. Microcircuits having Josephson junctions and superconducting quantum interference devices are described.
REFERENCES:
patent: 3476617 (1969-11-01), Robinson
patent: 4011574 (1977-03-01), Wang et al.
patent: 4245161 (1981-01-01), Crowne
patent: 4368479 (1983-01-01), Davis
Scientific American vol. 247 #1, Jul. 82, "Organic Superconductors" by Beckgaard.
Braslau, N.; Fabrication of Planar Josephson Junctions by Laser Irradiation IBM Technical Disclosure Bulletin, vol. 18, No. 11, Apr. 1976.
C. R. Acad. Sc. Paris, t. 291 (Oct. 6, 1980), Series B.-602 Cptes rendus. series A&B. Sciences Mathem. & Physique vol. 291 (1980) Oct., Paris, France.
Bechgaard Klaus
Bouffard Serge J. H.
Jerome Denis
Zuppiroli Libero
Centre National de la Recherche Scientifique
James Andrew J.
Prenty Mark
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