US3554818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indium antimonide infrared detector and process for making the same
Assignee: AV ELECTRONICS Corp A CORP OF
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Filing: 1968-04-25
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Granted: 1971-01-12
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Expires: 1988-04-25
Abstract
Abstract THE INVENTION HERE DISCLOSED IS AN INDIUM ANTIMONIDE INFRARED DETECTOR AND A PROCESS FOR MAKING THE SAME. A DIFFUSION PROCESS YIELDS A VERY SHALLOW P-REGION ON AN N-TYPE INDIUM ANTIMONIDE SUBSTRATE. THIS LAYER HAS A THICKNESS OF 1.0 TO .5 MICRON AND HAS A HIGH CONCENTRATION OF ACCEPTORS, PROVIDING A VERY EFFICIENT COLLECTION REGION OF CARRIER CREATED BY PHOTON ABSORPTION. THE LAYER IS OF CADMIUM OR ZINC AND THE CONCENTRATION IS WITHIN A RANGE SUCH THAT WHILE LATTICE DAMAGE OCCURS DETECTOR OPERATION IS NOT IMPAIRED. THE LAYER IS SO SHALLOW THE MOST OF THE CARRIER CREATED BY PHOTON ABSORPTION ARE COLLECTED.
Inventors
- 👤 Vernon L Lambert
- 👤 Norman J Gri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:00
CPC Classifications
H; H10; H10F; H10F30/00; H10F30/20; H10F30/21; H10F30/22; H10F30/221; H10F30/2215; G; G01; G01J; G01J5/00; G01J5/10; G01J5/28; H10D; H10D99/00; H10F99/00; H10P; H10P95/00; H10W; H10W74/00; H10W74/40; H10W74/43; H10W72/00; H10W72/071; H10W72/075; H10W72/07551; H10W72/07554; H10W72/50; H10W72/531; H10W72/536; H10W72/541; H10W72/547; H10W72/551; H10W72/552; H10W72/5522; H10W72/90; H10W72/931; H10W72/932; Y; Y10; Y10S; Y10S148/00; Y10S148/005; Y10S148/02; Y10S148/022; Y10S148/051; Y10S148/065; Y10S148/08; Y10S148/118; Y10S148/12
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |