Patent US2962396A successfully refreshed from Google Patents.
US2962396A
Expired / Lapsed
US
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Method of producing rectifying junctions of predetermined size
Assignee: RCA Corp
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Filing: 1959-08-28
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Granted: 1960-11-29
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Expires: 1979-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jacques I Pankove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:08
CPC Classifications
H; H10; H10W; H10W72/00; H10W72/20; G; G04; G04B; G04B19/00; G04B19/22; H10D; H10D30/00; H10D30/01; H10D30/051; H10D99/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S165/00; Y10S165/905; Y10S438/00; Y10S438/965
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
THE METHOD OF MAKING A SEMICONDUCTOR DEVICE COMPRISING THE STEPS OF PLACING A MASK OF INERT MATERIAL AGAINST A BODY OF SEMICONDUCTOR MATERIAL SO AS TO BE IN CLOSE CONTACT WITH THE SURFACE THEREOF, THE MASK DEFINING A RESTRICTED SURFACE AREA, PLACING A MATERIAL SELECTED FROM THE CLASS OF DONOR AND ACCEPTOR MATERIALS WITHIN SAID AREA, APPLYING HEAT SO AS TO MELT SAID MATERIAL AND CAUSE IT TO PENETRATE THE BODY OF SEMICONDUCTOR MATERIAL, APPLYING PRESSURE TO SAID MOLTEN MATERIAL WITHIN THE MASK SO AS TO OVERCOME THE SURFACE TENSION OF THE MOLTEN MATERIAL AND CAUSE IT TO ACT ON SUBSTANTIALLY ALL PORTIONS OF THE BODY OF SEMICONDUCTOR MATERIAL EXPOSED WITHIN SAID MASK, AND REMOVING SAID MASK AFTER THE MOLTEN MATERIAL HAS COOLED.
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) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |