Patent US3293084A successfully refreshed from Google Patents.
US3293084A
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Method of treating semiconductor bodies by ion bombardment
Assignee: North American Aviation Corp
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Filing: 1963-09-09
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Granted: 1966-12-20
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 James O Mccaldin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:56
CPC Classifications
H; H10; H10P; H10P30/00; H10P30/20; H10P30/202; H10P30/204; C; C30; C30B; C30B31/00; C30B31/20; C30B31/22; H01; H01J; H01J37/00; H01J37/30; H01J37/317; H01J37/3171; H10P30/208; H10P95/00; Y; Y10; Y10S; Y10S438/00; Y10S438/914; Y10S438/918
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF PERMANENTLY ALTERING THE ELECTRICAL CHARACTERISTICS OF AT LEAST ONE PORTION OF A SEMICONDUCTOR BODY SELECTED FROM THE CLASS CONSISTING OF SILICON, GENERANIUM AMD ALLOYS THEREOF, CONTAINING A PREDETERMINED CONCENTRATION OF AN ACCEPTOR COMPRISING THE STEPS OF HEATING THE BODY TO A TEMPERATURE OF FROM ABOUT 300*C. TO ABOUT 700*C. AND BOMBARDING SAID HEATED BODY WITH IONS OF AT LEAST ONE ELEMENT SELECTED FROM THE CLASS CONSISTING OF NA, K, RB AND CS FOR A TIME AND WITH AN ENERGY TO FORM A VOLUME IN SAID BODY HAVING A CONCENTRATION OF SAID AT LEAST ONE ELEMENT SUFFICIENT TO MATERIALLY ALTER THE CONDUCTIVITY CHARACTISRICS OF SAID VOLUME.
Claim 2
Independent Claim
108 words
A METHOD OF PERMANENTLY ALTERING THE ELECTRICAL CHARACTERISTICS OF AT LEAST ONE PORTION OF A SEMICONDUCTOR BODY SELECTED FROM THE CLASS CONSISTING OF SILICON, GENERANIUM AMD ALLOYS THEREOF, CONTAINING A PREDETERMINED CONCENTRATION OF AN ACCEPTOR COMPRISING THE STEPS OF HEATING THE BODY TO A TEMPERATURE OF FROM ABOUT 300*C. TO ABOUT 700*C. AND BOMBARDING SAID HEATED BODY WITH IONS OF AT LEAST ONE ELEMENT SELECTED FROM THE CLASS CONSISTING OF NA, K, RB AND CS FOR A TIME AND WITH AN ENERGY TO FORM A VOLUME IN SAID BODY HAVING A CONCENTRATION OF SAID AT LEAST ONE ELEMENT SUFFICIENT TO MATERIALLY ALTER THE CONDUCTIVITY CHARACTISRICS OF SAID VOLUME.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |