US5347143A
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US
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Tunnelling barrier between two non-tunnelling superconductor-insulator-controlling superconductor-insulator-superconductor structures
Assignee: HEHRWART SCHRODER
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Filing: 1993-08-09
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Granted: 1994-09-13
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Expires: 2013-08-09
Abstract
Abstract A superconducting tunnel element, having a plurality of super conductors separated by barriers, the superconductors each comprising two physically separate but electrically connected superconducting layers and one insulated control layer. As a result, summation of the detection capacity or of the transmitting intensity becomes possible. Also, the simultaneous detection or transmission is permitted on arbitrary different frequencies or a summation of the signal intensity is possible in the case of SQUID-systems.
Inventors
- 👤 Hehrwart Schroder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:26
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/10; H10N60/128; Y; Y10; Y10S; Y10S505/00; Y10S505/70; Y10S505/701; Y10S505/702; Y10S505/825; Y10S505/831; Y10S505/832; Y10S505/848; Y10S505/849; Y10S505/873; Y10S505/874; Y10S505/917; Y10S505/922
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
64 words
A controllable superconductor structure, comprising: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 2
Dependent Claim
64 words
A controllable superconductor structure, comprising: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 3
Dependent Claim
121 words
A controllable superconductor structure according to claim 1, wherein said first and second superconducting layers are electrically connected with one another by one of: a third superconducting layer of material, functioning as a shorting bar, arranged adjacent and substantially transverse to said first, second and control superconducting layers, said third superconducting layer being electrically connected with said first and second layers and electrically insulated from said control superconducting layer; and at least one superconducting through-connection extending between said first and second layers and through said control superconducting layer, said at least one through-connection being electrically connected to said first and second layers and being electrically insulated from said control superconducting layer such that said control superconducting layer has a perforated structure.
Claim 4
Dependent Claim
46 words
A controllable superconductor structure according to claim 1, wherein a barrier layer is provided between two of said controllable superconductor structures, said barrier layer having a thickness for electron tunneling of approximately 3 nm and a thickness for Josephson tunneling of approximately 1 to 1.5 nm.
Claim 5
Dependent Claim
46 words
A controllable superconductor structure according to claim 2, wherein a barrier layer is provided between two of said controllable superconductor structures, said barrier layer having a thickness for electron tunneling of approximately 3 nm and a thickness for Josephson tunneling of approximately 1 to 1.5 nm.
Claim 6
Dependent Claim
20 words
A controllable superconducting structure according to claim 1, wherein said barrier layer is a molecular beam epitaxially formed barrier layer.
Claim 7
Dependent Claim
20 words
A controllable superconducting structure according to claim 2, wherein said barrier layer is a molecular beam epitaxially formed barrier layer.
Claim 8
Dependent Claim
20 words
A controllable superconducting structure according to claim 3, wherein said barrier layer is a molecular beam epitaxially formed barrier layer.
Claim 9
Dependent Claim
96 words
A multiple-tunnel element arrangement, comprising: at least three controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 10
Dependent Claim
96 words
A multiple-tunnel element arrangement, comprising: at least three controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 11
Dependent Claim
121 words
A multiple-tunnel element arrangement according to claim 8, wherein said first and second superconducting layers are electrically connected with one another by one of: a third superconducting layer of material, functioning as a shorting bar, arranged adjacent and substantially transverse to said first, second and control superconducting layers, said third superconducting layer being electrically connected with said first and second layers and electrically insulated from said control superconducting layer; and at least one superconducting through-connection extending between said first and second layers and through said control superconducting layer, said at least one through-connection being electrically connected to said first and second layers and being electrically insulated from said control superconducting layer such that said control superconducting layer has a perforated structure.
Claim 12
Dependent Claim
34 words
A multiple-tunnel element arrangement according to claim 8, wherein said barrier layer has a thickness for electron tunneling of approximately 3 nm and a thickness for Josephson tunneling of approximately 1 to 1.5 nm.
Claim 13
Dependent Claim
34 words
A multiple-tunnel element arrangement according to claim 9, wherein said barrier layer has a thickness for electron tunneling of approximately 3 nm and a thickness for Josephson tunneling of approximately 1 to 1.5 nm.
Claim 14
Dependent Claim
20 words
A multiple-tunnel element arrangement according to claim 8, wherein said barrier layer is a molecular beam epitaxially formed barrier layer.
Claim 15
Dependent Claim
20 words
A multiple-tunnel element arrangement according to claim 9, wherein said barrier layer is a molecular beam epitaxially formed barrier layer.
Claim 16
Dependent Claim
20 words
A multiple-tunnel element arrangement according to claim 10, wherein said barrier layer is a molecular beam epitaxially formed barrier layer.
Claim 17
Dependent Claim
103 words
Apparatus for sensing and emitting electromagnetic radiation having an arbitrary wavelength, comprising: a plurality of controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 18
Dependent Claim
103 words
Apparatus for sensing and emitting electromagnetic radiation having an arbitrary wavelength, comprising: a plurality of controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 19
Dependent Claim
23 words
Apparatus according to claim 15, wherein said plurality of controllable superconductor structures includes at least three controllable superconductor structures stacked above one another.
Claim 20
Dependent Claim
118 words
Apparatus according to claim 15, wherein said first and second superconducting layers are electrically connected with one another by one of: a third superconducting layer of material, functioning as a shorting bar, arranged adjacent and substantially transverse to said first, second and control superconducting layers, said third superconducting layer being electrically connected with said first and second layers and electrically insulated from said control superconducting layer; and at least one superconducting through-connection extending between said first and second layers and through said control superconducting layer, said at least one through-connection being electrically connected to said first and second layers and being electrically insulated from said control superconducting layer such that said control superconducting layer has a perforated structure.
Claim 21
Dependent Claim
100 words
Apparatus capable of transmitting and receiving acoustic waves, comprising: a plurality of controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 22
Dependent Claim
100 words
Apparatus capable of transmitting and receiving acoustic waves, comprising: a plurality of controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 23
Dependent Claim
23 words
Apparatus according to claim 18, wherein said plurality of controllable superconductor structures includes at least three controllable superconductor structures stacked above one another.
Claim 24
Dependent Claim
97 words
A superconducting component for SQUIDs, comprising: a plurality of controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 25
Dependent Claim
97 words
A superconducting component for SQUIDs, comprising: a plurality of controllable superconductor structures arranged parallel to one another and adjacent to barrier layers formed between each of said controllable superconductor structures, wherein each of said controllable superconductor structures includes: a first superconducting layer of material; a second superconducting layer of material substantially parallel to and electrically connected with said first superconducting layer; and a control superconducting layer of material formed between and electrically insulated from said first and second layers, said superconducting control layer having inputs to receive a variable control current for controlling the controllable superconductor structure.
Claim 26
Dependent Claim
24 words
A component according to claim 20, wherein said plurality of controllable superconductor structures includes at least three controllable superconductor structures stacked above one another.
Claim 27
Dependent Claim
119 words
A component according to claim 20, wherein said first and second superconducting layers are electrically connected with one another by one of: a third superconducting layer of material, functioning as a shorting bar, arranged adjacent and substantially transverse to said first, second and control superconducting layers, said third superconducting layer being electrically connected with said first and second layers and electrically insulated from said control superconducting layer; and at least one superconducting through-connection extending between said first and second layers and through said control superconducting layer, said at least one through-connection being electrically connected to said first and second layers and being electrically insulated from said control superconducting layer such that said control superconducting layer has a perforated structure.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1997-09-12 | 1998-03-14 | 1998-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-12 | 2002-03-14 | 2002-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-12 | 2006-03-14 | 2006-09-13 | $7700.00 | Window Closed / Lapsed |