US5019551A
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Superconducting contact structure
Assignee: NEC Corp
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Filing: 1988-09-06
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Granted: 1991-05-28
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Expires: 2008-09-06
Abstract
Abstract In a superconducting contact structure between an oxide superconductor and a metal superconductor, the oxide superconductor has a recess in a surface which is in contact with the metal superconductor.
Inventors
- 👤 Mutsuo Hidaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:18
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0268; H10N60/0744; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10S428/922; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/70; Y10S505/701; Y10S505/702; Y10S505/703; Y10S505/704; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
85 words
A superconducting contact structure for making an electrical connection between a layer of yttrium-barium-copper oxide superconductor and a layer of metal superconductor formed layer on layer, wherein said oxide superconductor is formed on a substrate and comprises a layered structure with surfaces of said layers being parallel to the surface of said substrate, and has at least one recess formed in a surface of said oxide superconductor, said recess having sidewalls and a bottom surface, all of which are in contact with said metal superconductor.
Claim 2
Dependent Claim
85 words
A superconducting contact structure for making an electrical connection between a layer of yttrium-barium-copper oxide superconductor and a layer of metal superconductor formed layer on layer, wherein said oxide superconductor is formed on a substrate and comprises a layered structure with surfaces of said layers being parallel to the surface of said substrate, and has at least one recess formed in a surface of said oxide superconductor, said recess having sidewalls and a bottom surface, all of which are in contact with said metal superconductor.
Claim 3
Dependent Claim
48 words
A superconducting contact structure according to claim 1, wherein said structure can conduct a large amount of current between said oxide superconductor and said metal superconductor via said side walls, bottom surface, and at least of a portion of a surface between said oxide superconductor and metal superconductor.
Claim 4
Dependent Claim
44 words
A superconducting contact structure according to claim 1, wherein said recess comprises a recess with a vertically tapered side wall, said taper being formed in order to become more narrow in a direction of the thickness of said oxide superconductor from said surface thereof.
Claim 5
Dependent Claim
42 words
A superconducting contact structure according to claim 1, wherein said recess comprises a bottom recess surface with a vertically stepped wall, said steps being formed in a direction of the thickness of said oxide superconductor and extending downwardly from said surface thereof.
Claim 6
Dependent Claim
31 words
A superconducting contact structure according to claim 1, wherein said recess comprises a plurality of recesses formed in a direction of the thickness of said oxide superconductor from said surface thereof.
Claim 7
Dependent Claim
22 words
A superconducting contact structure according to claim 1, wherein said oxide superconductor is connected through an insulating layer to a metal superconductor.
Claim 8
Dependent Claim
71 words
A superconducting contact structure between a layer of yttrium-barium-copper oxide superconductor and a layer of metal superconductor formed layer on layer, wherein said oxide superconductor is formed on a substrate and comprises a layered structure parallel to the substrate, and wherein at least a recess is formed in a surface of said oxide superconductor so that almost all current is supplied in said oxide superconductor and in parallel to said substrate.
Claim 9
Dependent Claim
71 words
A superconducting contact structure between a layer of yttrium-barium-copper oxide superconductor and a layer of metal superconductor formed layer on layer, wherein said oxide superconductor is formed on a substrate and comprises a layered structure parallel to the substrate, and wherein at least a recess is formed in a surface of said oxide superconductor so that almost all current is supplied in said oxide superconductor and in parallel to said substrate.
References Cited (Backward Citations)
No citation records indexed.
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