Superconductive tunnel junction integrated circuit

Details Superconductive tunnel junction integrated circuit Superconductive tunnel junction integrated circuit

1981-04-09

1984-02-07

Edlow, Martin H.

357 4, H01L 3922, H01L 2712

Patent

active

044306628

ABSTRACT:
Josephson junction integrated circuits of the current injection type and magnetically controlled type utilize a superconductive layer that forms both Josephson junction electrode for the Josephson junction devices on the integrated circuit as well as a ground plane for the integrated circuit. Large area Josephson junctions are utilized for effecting contact to lower superconductive layers and islands are formed in superconductive layers to provide isolation between the groundplane function and the Josephson junction electrode function as well as to effect crossovers. A superconductor-barrier-superconductor trilayer patterned by local anodization is also utilized with additional layers formed thereover. Methods of manufacturing the embodiments of the invention are disclosed.

REFERENCES:
patent: 4117503 (1978-09-01), Zappe
patent: 4220959 (1980-09-01), Kroger
patent: 4315255 (1982-02-01), Harris
T. R. Gheewala "Design of 2.5-Micrometer Josephson Current Injection Logic (CIL)" IBM J. Res. & Develop., vol. 24, No. 2, pp. 130-142, Mar. 1980.

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