US4048535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead-tin-telluride photodetector array
Assignee: United States Department of the Army
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Filing: 1976-05-04
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Granted: 1977-09-13
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Expires: 1996-05-04
Abstract
Abstract A method is provided for manufacturing lead-tin-telluride photodiode arrays which is simple and yet provides excellent yields of high performance devices.
Inventors
- 👤 John T. Cox
- 👤 Michael B. Garber
- 👤 Marilyn A. Jasper
- 👤 Paul LoVecchio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:57
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/10; H10F77/12; H10F77/127; H10F39/00; H10F39/10; H10F39/12; H10F39/18; H10F39/184
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A photodiode array comprising: a wafer of Pb.sub..8 Sn.sub..2 Te; an insulating layer covering most of the exposed surface of said chip defining only a plurality of small rectantular windows wherein the surface of the chip is exposed; a thin layer of indium covering all of said insulating layer and all of said rectangular windows; and a plurality of thick indium lead-out pads mounted on said thin layer, each pad overlapping only a different one of said rectangular windows.
Claim 2
Dependent Claim
79 words
A photodiode array comprising: a wafer of Pb.sub..8 Sn.sub..2 Te; an insulating layer covering most of the exposed surface of said chip defining only a plurality of small rectantular windows wherein the surface of the chip is exposed; a thin layer of indium covering all of said insulating layer and all of said rectangular windows; and a plurality of thick indium lead-out pads mounted on said thin layer, each pad overlapping only a different one of said rectangular windows.
References Cited (Backward Citations)
US3980915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |