Method of preparing high temperature superconductor films on opp

Details Method of preparing high temperature superconductor films on opp Method of preparing high temperature superconductor films on opp

1992-10-29

1994-01-18

King, Roy

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505701, 505702, 505731, 505732, 505728, 505866, 427 62, 427404, 4274193, 228116, 228121, H01L 3924

Patent

active

052800130

ABSTRACT:
A superconducting electronic circuit device, useful when impedance matching is desired, especially suited to microwave frequencies, consisting of a thin dielectric layer with superconducting layers on both sides. A superconductor such as Yttrium Barium Copper Oxide (YBCO) is formed on a first substrate such as lanthanum aluminate. A protective layer like gold is deposited on the YBCO and a second carrier substrate is bonded to the protected YBCO. The first substrate is then thinned into a thin dielectric film and a second layer of superconductor is epitaxially grown thereon to create the desired circuits.

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patent: 5075655 (1991-12-01), Pond et al.
patent: 5774196 (1988-09-01), Blanchard
Warner et al., "Laser Ablated High Tc Superconducting Thin YBa.sub.2 Cu.sub.3 O.sub.7 Films on Substrates Suitable for Microwave Applications", Advances in Materials Science and Applications of High Temperature Superconductors, edited by Flom (Apr. 1990) p. 26.
Wu et al., "Growth of High Tc Superconducting Thin Films for Microwave Applications", Proc. SPIE 1477 (Supercond. Appl. Infrared Microwave Devices 2) (1991) pp. 8-14.
Anderson et al., "Substrates for Superconductive Analog Signal Processing Devices", IEEE Transactions on Magnetics, vol. Mag-19, No. 3 (May 1983) pp. 485-489.
Tanaka, et al., "High Frequency Transmission through Bi-Sr-Ca-Cu-O Double-Sided Microstripline on an MgO Substrate", Japanese Journal of Applied Physics, vol. 30, No. 4B, 15 Apr., 1991, Tokyo, JP, pp. L700-L702.

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