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US5030613A
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Epitaxial Ba--Y--Cu--O ceramic superconductor film on perovskite structure substrate
Assignee: Honeywell International Inc
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Filing: 1988-08-15
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Granted: 1991-07-09
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Expires: 2008-08-15
Abstract
Abstract Superconducting Ba--Y--Cu--O ceramic thin film is epitaxially deposited on a crystal substrate of LaAlO 3 , LaGaO 3 , PrGaO 3 and NdGaO 3 .
Inventors
- 👤 Bruce H. Chai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:16
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0268; H10N60/0296; H10N60/0576; H10N60/0604; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10S428/922; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/70; Y10S505/701; Y10S505/702; Y10S505/703; Y10S505/704
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
49 words
A superconducting structure comprising, in combination, a crystal substrate having a superconducting film epitaxially deposited thereon, wherein the substrate is a crystal selected from the group consisting of LaAlO 3 , LaGaO 3 , PrGaO 3 and NdGaO 3 , and wherein the superconducting film is a Ba--Y--Cu--O superconductor.
Claim 2
Dependent Claim
49 words
A superconducting structure comprising, in combination, a crystal substrate having a superconducting film epitaxially deposited thereon, wherein the substrate is a crystal selected from the group consisting of LaAlO 3 , LaGaO 3 , PrGaO 3 and NdGaO 3 , and wherein the superconducting film is a Ba--Y--Cu--O superconductor.
Claim 3
Dependent Claim
18 words
The structure of claim 1 wherein the substrate is a crystal of LaAlO 3 or LaGaO 3 .
Claim 4
Dependent Claim
12 words
The structure of claim 1 wherein the substrate is LaGaO 3 .
Claim 5
Dependent Claim
27 words
The structure of claim 1 wherein the Ba--Y--Cu--O superconductor has the composition Ba 2 YCu 3 O 7-x where x is from about 0.1 to about 0.5.
Claim 6
Dependent Claim
18 words
The structure of claim 5 wherein the substrate is a crystal of LaAlO 3 or LaGaO 3 .
Claim 7
Dependent Claim
14 words
The structure of claim 4 wherein the Ba--Y--Cu--O superconductor is deposited by sputtering procedure.
Claim 8
Dependent Claim
24 words
The structure of claim 6 wherein the substrate is in the (001) orientation of the pseudo-cubic cell or (110) orientation of the orthorhombic cell.
Claim 9
Dependent Claim
15 words
The structure of claim 7 wherein the substrate has been obtained by the Czochralski process.
Claim 10
Dependent Claim
12 words
The structure of claim 8 wherein the substrate is LaAlO 3 .
Claim 11
Dependent Claim
12 words
The structure of claim 8 wherein the substrate is LaGaO 3 .
Claim 12
Dependent Claim
30 words
The structure of claim 1 wherein the substrate is a crystal of LaAlO 3 and wherein the surface whereon the superconductor is deposited is tilted 12.6°±0.5° in the "b" direction.
References Cited (Backward Citations)
No citation records indexed.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1994-07-08 | 1995-01-07 | 1995-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-08 | 1999-01-07 | 1999-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-08 | 2003-01-07 | 2003-07-09 | $7700.00 | Window Closed / Lapsed |