US4238759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monolithic Peltier temperature controlled junction
Assignee: University of Delaware
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Filing: 1978-10-20
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Granted: 1980-12-09
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Expires: 1998-10-20
Abstract
Abstract A Peltier-cooled p-n junction in a monolithic solid-state electronic device embodying a substrate comprising a Peltier thermal surface layer disposed adjacent the active region of the p-n junction and in close proximity therewith, the Peltier thermal surface layer having an electrical conductor in circuit therewith affording an electrical path for the withdrawal or supply of Peltier effect current incident to the maintenance of the junction at a preselected temperature.
Inventors
- 👤 Robert G. Hunsperger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:04
CPC Classifications
H; H10; H10H; H10H20/00; H10H20/80; H10H20/85; H10H20/858; H10H20/8584; H01; H01S; H01S5/00; H01S5/02; H01S5/024; H01S5/02407; H01S5/02415; H10N; H10N10/00; H10N10/80; H10N10/81; H10N10/817; H10N10/85; H10N10/851; H10N10/854; H10W; H10W40/00; H10W40/20; H10W40/28; H01S5/022; H01S5/0233; H01S5/0234; H01S5/026; H01S5/0261
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
80 words
Means for maintaining the temperature of a p-n junction in a monolithic solid-state electronic device embodying a substrate comprising a Peltier thermal surface layer disposed adjacent the active region of said p-n junction and in close proximity therewith, said Peltier thermal surface layer being provided with an electrical conductor in circuit therewith through a first terminal affording an electrical path for the withdrawal or supply of Peltier effect current incident to the maintenance of said junction at a preselected temperature.
Claim 2
Dependent Claim
80 words
Means for maintaining the temperature of a p-n junction in a monolithic solid-state electronic device embodying a substrate comprising a Peltier thermal surface layer disposed adjacent the active region of said p-n junction and in close proximity therewith, said Peltier thermal surface layer being provided with an electrical conductor in circuit therewith through a first terminal affording an electrical path for the withdrawal or supply of Peltier effect current incident to the maintenance of said junction at a preselected temperature.
Claim 3
Dependent Claim
34 words
Apparatus according to claim 1 wherein a current source is interposed in circuit with said conductor via a switch effecting optional selective supply and direction of current flow through said monolithic solid-state electronic device.
Claim 4
Dependent Claim
43 words
Apparatus according to claim 1 utilized for cooling a p-n junction in a solid state electronic device wherein said Peltier thermal surface layer is employed for cooling said p-n junction by connection with a second Peltier thermal surface layer attached to said substrate.
Claim 5
Dependent Claim
14 words
Apparatus according to claim 3 wherein said p-n junction is of the lasing type.
Claim 6
Dependent Claim
23 words
Apparatus according to claim 1 wherein said Peltier thermal surface layer is one of the group consisting of Ag, Au-Ge, Au-Ge-Ni, and Au.
Claim 7
Dependent Claim
16 words
apparatus according to claim 3 wherein said Peltier thermal surface layers are substantially equal in area.
Claim 8
Dependent Claim
17 words
Apparatus according to claim 3 wherein said Peltier thermal surface layer is at least 5 microns thick.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-09 | 1984-06-09 | 1984-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-09 | 1988-06-09 | 1988-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-09 | 1992-06-09 | 1992-12-09 | $7700.00 | Window Closed / Lapsed |