Method of making an improved superconducting quantum interferenc

Details Method of making an improved superconducting quantum interferenc Method of making an improved superconducting quantum interferenc

1977-02-08

1977-12-20

Edmundson, F.C.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

29599, 324248, C23C 1500, G01R 3302

Patent

active

040640299

ABSTRACT:
An improved superconducting quantum interference device is made by sputtering a thin film of an alloy of three parts niobium to one part tin in a pattern comprising a closed loop with a narrow region, depositing a thin film of a radiation shield such as copper over the niobium-tin, scribing a narrow line in the copper over the narrow region, exposing the structure at the scribed line to radiation and removing the deposited copper.

REFERENCES:
J. Clarke, "Low-Frequency Applications of Superconducting Quantum Interference Devices," Proc. IEEE, vol. 61, Jan. 1973, pp. 8-19.
K. Murata et al., "A Simple Strong Squid," Japanese J. Appl.. Phys., vol. 15, pp. 733-734, Apr. 1976.
T. Fujita et al., "Fabrication & Performance of NbN Thin Film Planar Squids," IEEE Trans. on Magnetics, vol. Mag-11, Mar. 1975, pp. 739-742.
L. B. Holdeman et al., "Niobium Microbridges for Squid Applications," IEEE Trans. on Magnetics, vol. Mag-11, Mar. 1975, pp. 782-784.

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