Patent US2928761A successfully refreshed from Google Patents.
US2928761A
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Methods of producing junction-type semi-conductor devices
Assignee: Siemens Schuckertwerke AG
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Filing: 1955-06-29
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Granted: 1960-03-15
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Expires: 1975-06-29
Abstract
No abstract record available.
Inventors
- 👤 Gremmelmaier Rolf
- 👤 Folberth Otto Gerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
C; C30; C30B; C30B31/00; C30B31/06; C30B1/00; C30B1/10; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S438/00; Y10S438/971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE PROCESS OF PROVIDING A BODY OF AIIIBV SEMICONDUCTOR COMPOUND WITH A P-N JUNCTION, ONE OF THE COMPONENT ELEMENTS OF THE COMPOUND BEING A MORE VOLATILE ELEMENT THAN ANOTHER COMPONENT, COMPRISING TEMPERING SAID BODY IN A VAPRO, THE VAPOR COMPRISING THE MORE VOLATILE ELEMENT AND A DOPING SUBSTANCE, THE TEMPERING BEING BY HEATING AT A TEMPERATURE BELOW BUT NEAR THE MELTING POINT OF THE COMPOUND.
Claim 2
Dependent Claim
65 words
THE PROCESS OF PROVIDING A BODY OF AIIIBV SEMICONDUCTOR COMPOUND WITH A P-N JUNCTION, ONE OF THE COMPONENT ELEMENTS OF THE COMPOUND BEING A MORE VOLATILE ELEMENT THAN ANOTHER COMPONENT, COMPRISING TEMPERING SAID BODY IN A VAPRO, THE VAPOR COMPRISING THE MORE VOLATILE ELEMENT AND A DOPING SUBSTANCE, THE TEMPERING BEING BY HEATING AT A TEMPERATURE BELOW BUT NEAR THE MELTING POINT OF THE COMPOUND.
References Cited (Backward Citations)
US2701216A
Cited
US2561411A
Cited
GB728129A
Cited
US2692839A
Cited
FR1057038A
Cited
US2695852A
Cited
GB750173A
Cited
US2759861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |