Patent US3287187A successfully refreshed from Google Patents.
US3287187A
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Method for production oe semiconductor devices
Assignee: Siemens Corp
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Filing: 1963-01-29
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Granted: 1966-11-22
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Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Rosenheinrich Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:59
CPC Classifications
H; H10; H10P; H10P32/00; H10P32/10; H10P32/12; C; C30; C30B; C30B31/00; C30B31/02; H10P32/14; H10P32/17; H10P32/171; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/043; Y10S148/151
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF PRODUCING A SEMICONDUCTOR JUNCTION DEVICE HAVING A SUBSTANTIALLY MONOCRYSTALLINE SEMICONDUCTOR BODY WITH REGIONS OF RESPECTIVELY DIFFERENT CONDUCTANCE THEREON, WHICH COMPRISING COATING ONE SURFACE REGION OF SAID BODY WITH A DOPING SUBSTANCE FOR ONE TYPE OF CONDUCTANCE, COATING ANOTHER REGION OF SAID BODY WITH ANOTHER DOPING SUBSTANCE FOR THE OTHER TYPE OF CONDUCTANCE, VAPOR-DEPOSITING UPON SAID BODY AND SAID RESPECTIVE DOPANT COATINGS A LAYER OF OXIDE OF THE SAME SEMICONDUCTOR MATERIAL OF WHICH SAID BODY CONSISTS, AND THEN DIFFUSING SAID DOPING SUBSTANCES FROM BENEATH SAID OXIDE LAYER INTO THE SEMICONDUCTOR BODY BY HEATING THE BODY.
Claim 2
Independent Claim
97 words
THE METHOD OF PRODUCING A SEMICONDUCTOR JUNCTION DEVICE HAVING A SUBSTANTIALLY MONOCRYSTALLINE SEMICONDUCTOR BODY WITH REGIONS OF RESPECTIVELY DIFFERENT CONDUCTANCE THEREON, WHICH COMPRISING COATING ONE SURFACE REGION OF SAID BODY WITH A DOPING SUBSTANCE FOR ONE TYPE OF CONDUCTANCE, COATING ANOTHER REGION OF SAID BODY WITH ANOTHER DOPING SUBSTANCE FOR THE OTHER TYPE OF CONDUCTANCE, VAPOR-DEPOSITING UPON SAID BODY AND SAID RESPECTIVE DOPANT COATINGS A LAYER OF OXIDE OF THE SAME SEMICONDUCTOR MATERIAL OF WHICH SAID BODY CONSISTS, AND THEN DIFFUSING SAID DOPING SUBSTANCES FROM BENEATH SAID OXIDE LAYER INTO THE SEMICONDUCTOR BODY BY HEATING THE BODY.
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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |