US4586062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microcircuits formed from substrates of organic quasiunidimensional conductors
Assignee: Centre National de la Recherche Scientifique
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Filing: 1983-02-22
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Granted: 1986-04-29
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Expires: 2003-02-22
Abstract
Abstract Microcircuits composed of a plurality of alternating conducting and insulating regions are formed in a substrate of an organic quasi-unidimensional conductor such as DELTA 2,2 bi-4,5-dimethyl-1,3-diselenolylidene upon irradiation of the substrate with a precise beam of electrons having an energy of at least 1 keV, preferably at least 8 keV, which forms the insulating regions. When exposed to cryogenic temperatures the non-irradated conducting regions become super conducting. Using electron beam irradiations, sub-micronic resolution as low as 100 ANGSTROM can be achieved. Microcircuits having Josephson junctions and superconducting quantum interference devices are described.
Inventors
- 👤 Serge J. H. Bouffard
- 👤 Libero Zuppiroli
- 👤 Denis Jerome
- 👤 Klaus Bechgaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:58
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0884; H10N60/0912; H10N60/80; H10N60/85; H10N60/851; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/802; Y10S505/825; Y10S505/873; Y10S505/874
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
43 words
A microcircuit for use at temperatures below 77° K. comprising a substrate comprising Δ 2 ,2 bi-4,5-dimethyl-1,3-diselenolylidene-2,5-dimethyl-7,7'-8, 8'-tetra-cyanoquino dimethane, the substrate having an alternating pattern of superconducting regions and insulating regions thereon said superconducting and insulating regions forming a series of Josephson junctions.
Claim 2
Dependent Claim
43 words
A microcircuit for use at temperatures below 77° K. comprising a substrate comprising Δ 2 ,2 bi-4,5-dimethyl-1,3-diselenolylidene-2,5-dimethyl-7,7'-8, 8'-tetra-cyanoquino dimethane, the substrate having an alternating pattern of superconducting regions and insulating regions thereon said superconducting and insulating regions forming a series of Josephson junctions.
Claim 3
Dependent Claim
15 words
The microcircuit of claim 1 in which the substrate comprises Δ 2 ,2 bi-4,5-dimethyl-1,3-diselenolylidene chlorate.
Claim 4
Dependent Claim
12 words
The microcircuit claim 1 in which the substrate additionally includes non-organic compound.
References Cited (Backward Citations)
US3476617A
Cited
FR2024592A1
Cited
US4011574A
Cited
US4368479A
Cited
FR2463512A1
Cited
US4245161A
Cited
FR2510309A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |