Patent US3257246A successfully refreshed from Google Patents.
US3257246A
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US
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Methods for manufacturing semiconductor devices
Assignee: Thales SA
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Filing: 1962-07-09
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Granted: 1966-06-21
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Expires: 1982-07-09
Abstract
No abstract record available.
Inventors
- 👤 Grosvalet Jean
- 👤 Leclerc Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:22
CPC Classifications
H; H10; H10P; H10P50/00; C; C30; C30B; C30B25/00; C30B25/02; C30B25/08; H10D; H10D62/00; H10D62/10; H10P95/00; H10P95/50; Y; Y10; Y10S; Y10S148/00; Y10S148/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE FROM A MONOCRYSTALLINE SEMICONDUTOR BODY COMPRISING THE STEPS OF FORMING A LOCAL CAVITY IN THE SURFACE OF SAID BODY, BY DIRECTING ON A PREDETERMINED PORTION OF SAID SURFACE, A CAPILLARY JET OF A GAS HAVING A CHEMICAL ACTION ON SAID SEMICONDUCTOR, SAID JET HAVING A SECTION WHICH IS COEXTENSIVE WITH SAID PORTION AND DEPOSITING IN SAID CAVITY A LAYER CONSISTING OF THE SAME SEMICONDUCTOR MATERIAL CONTAINING AN IMPURITY, BY DIRECTING INTO SAID CAVITY A JET OF A GASEOUS MIXTURE HAVING THE SAME SECTION AS SAID FIRST MENTIONED JET INCLUDING SAID SEMICONDUCTOR AND SAID IMPURITY AS COMPONENTS.
Claim 2
Independent Claim
103 words
A METHOD FOR MANUFACTURING A SEMICONDUCTOR DEVICE FROM A MONOCRYSTALLINE SEMICONDUTOR BODY COMPRISING THE STEPS OF FORMING A LOCAL CAVITY IN THE SURFACE OF SAID BODY, BY DIRECTING ON A PREDETERMINED PORTION OF SAID SURFACE, A CAPILLARY JET OF A GAS HAVING A CHEMICAL ACTION ON SAID SEMICONDUCTOR, SAID JET HAVING A SECTION WHICH IS COEXTENSIVE WITH SAID PORTION AND DEPOSITING IN SAID CAVITY A LAYER CONSISTING OF THE SAME SEMICONDUCTOR MATERIAL CONTAINING AN IMPURITY, BY DIRECTING INTO SAID CAVITY A JET OF A GASEOUS MIXTURE HAVING THE SAME SECTION AS SAID FIRST MENTIONED JET INCLUDING SAID SEMICONDUCTOR AND SAID IMPURITY AS COMPONENTS.
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) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |