US3214654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ohmic contacts to iii-v semiconductive compound bodies
Assignee: RCA Corp
•
Filing: 1961-02-01
•
Granted: 1965-10-26
•
Expires: 1981-02-01
Abstract
No abstract record available.
Inventors
- 👤 Lorne D Armstrong
- 👤 Edward G Buckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:31
CPC Classifications
H; H10; H10D; H10D8/00; H10D8/422; H10D64/00; H10D64/60; H10D64/62; H10P; H10P14/00; H10P14/40; H10P14/46; H10P50/00; H10P50/60; H10P50/64; H10P50/642; H10P50/646; H10D62/00; H10D62/80; H10D62/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF A CRYSTALLINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE PHOSPHIDES, ARSENIDES AND ANTIMONIDES OF ALUMINUM, GALLIUM AND INDIUM, SAID BODY HAVING ON AT LEAST A PORTION OF THE SURFACE THEREOF AN UNDOPED COATING OF A METAL SELECTED FROM THE GROUP CONSISTING OF SILVER, GOLD, RUTHENIUM, RHODIUM, PALLADIUM, OSMIUM, IRIDIUM AND PLATINUM, A LAYER OF SELECTED FROM THE GROUP CONSISTING OF COBALT AND NICKEL OVER SAID COATING, AND AN ELECTRICAL CONNECTION TO SAID LAYER, SAID CONNECTION CONSISTING OF A WIRE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF GOLD AND PLATINUM BONDED TO SAID LAYER ON SAID BODY.
Claim 2
Dependent Claim
106 words
A SEMICONDUCTOR DEVICE COMPRISING A BODY OF A CRYSTALLINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE PHOSPHIDES, ARSENIDES AND ANTIMONIDES OF ALUMINUM, GALLIUM AND INDIUM, SAID BODY HAVING ON AT LEAST A PORTION OF THE SURFACE THEREOF AN UNDOPED COATING OF A METAL SELECTED FROM THE GROUP CONSISTING OF SILVER, GOLD, RUTHENIUM, RHODIUM, PALLADIUM, OSMIUM, IRIDIUM AND PLATINUM, A LAYER OF SELECTED FROM THE GROUP CONSISTING OF COBALT AND NICKEL OVER SAID COATING, AND AN ELECTRICAL CONNECTION TO SAID LAYER, SAID CONNECTION CONSISTING OF A WIRE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF GOLD AND PLATINUM BONDED TO SAID LAYER ON SAID BODY.
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |