US4640629A
Expired / Lapsed
US
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Thermistor-bolometer and method for the manufacture thereof
Assignee: Consiglio Nazionale delle Richerche
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Filing: 1983-07-12
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Granted: 1987-02-03
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Expires: 2003-07-12
Abstract
Abstract Subject-matter of this invention is a thermistor-bolometer comprising as a detector body a structure consisting of a low resistivity layer of a doped magnetic garnet, two contact elements of conductive material adapted to form ohmic contacts and two conductive wires connected with the contact elements by contact pads, in order to connect the detector body with the biasing circuit and with the read-out circuit.
Inventors
- 👤 Bruno Antonini
- 👤 Camillo Borghese
- 👤 Arnaldo D'Amico
- 👤 Paolo DeGasperis
- 👤 Antonio Paoletti
- 👤 Paolo Paroli
- 👤 Giovanni Petrocco
- 👤 Aldo Tucciarone
- 👤 Fernando Scarinci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:08
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/10; G01J5/20; G01K; G01K7/00; G01K7/16; G01K7/22; G01K7/223; H; H01; H01C; H01C7/00; H01C7/04; H01C7/041; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49085
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
79 words
A thermistor-bolometer comprising a detector body (10) consisting of a low resistivity layer (11, 13) of a doped magnetic garnet, two contact elements (14, 15) of conductive material fastened on said low resistivity layer, said two contact elements being adapted to form ohmic contacts, and two conductor wires (16, 17) attached to said contact elements (14, 15) by means of contact pads (18) in order to connect said detector body to a biasing circuit and to a read-out circuit.
Claim 2
Dependent Claim
79 words
A thermistor-bolometer comprising a detector body (10) consisting of a low resistivity layer (11, 13) of a doped magnetic garnet, two contact elements (14, 15) of conductive material fastened on said low resistivity layer, said two contact elements being adapted to form ohmic contacts, and two conductor wires (16, 17) attached to said contact elements (14, 15) by means of contact pads (18) in order to connect said detector body to a biasing circuit and to a read-out circuit.
Claim 3
Dependent Claim
27 words
A thermistor-bolometer according to claim 1, characterized in that the layer (11) of doped magnetic garnet is formed as a thin film epitaxially grown upon a substrate.
Claim 4
Dependent Claim
27 words
A thermistor bolometer according to claim 1, characterized in that the layer (13) of doped magnetic garnet is formed as a block (bulk embodiment) in a crucible.
Claim 5
Dependent Claim
23 words
A thermistor-bolometer according to claim 1, characterized in that said contact elements are placed upon a surface of said doped magnetic garnet layer.
Claim 6
Dependent Claim
24 words
A thermistor-bolometer according to claim 3, characterized in that said contact elements are placed upon the opposed faces of said doped magnetic garnet block.
Claim 7
Independent Claim
51 words
A method for manufacturing a thermistor-bolometer, comprising the following steps: providing a low resistivity layer of doped magnetic garnet; affixing two contact elements of a material adapted to form ohmic contacts to said layer of doped magnetic garnet; applying two conductor wires to said contact elements by means of contact pads.
Claim 8
Independent Claim
51 words
A method for manufacturing a thermistor-bolometer, comprising the following steps: providing a low resistivity layer of doped magnetic garnet; affixing two contact elements of a material adapted to form ohmic contacts to said layer of doped magnetic garnet; applying two conductor wires to said contact elements by means of contact pads.
Claim 9
Dependent Claim
27 words
A method according to claim 6, characterized in that said layer of doped magnetic garnet is made as a thin film by epitaxial growth upon a substrate.
Claim 10
Dependent Claim
26 words
A method according to claim 6, characterized in that said layer of doped magnetic garnet is made as a small block (bulk embodiment) in a crucible.
Claim 11
Dependent Claim
21 words
A method according to claim 6, characterized in that said contact elements are made by radio-frequency spraying (sputtering) or by evaporation.
Claim 12
Dependent Claim
24 words
A method according to claim 6, characterized in that said contact pads are made by thermo-compression or by ultra sounds or are conductive resins.
References Cited (Backward Citations)
US3012212A
Cited
US2986034A
Cited
US3443103A
Cited
US3693011A
Cited
US4018692A
Cited
US3985685A
Cited
US4020475A
Cited
US3961998A
Cited
US4001586A
Cited
US4061917A
Cited
US4152676A
Cited
US4312114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |