US3208889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing a highly doped p-type conductance region in a semiconductor body, particularly of silicon and product thereof
Assignee: Siemens Schuckertwerke AG
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Filing: 1963-05-22
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Granted: 1965-09-28
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Expires: 1983-05-22
Abstract
No abstract record available.
Inventors
- 👤 Emeis Reimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
H; H10; H10P; H10P32/00; H10P32/10; H10P32/16; H10P95/00; H10P95/50; Y; Y10; Y10S; Y10S148/00; Y10S148/033; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
THE METHOD OF PRODUCING A HIGHLY DOPED CONDUCTANCE REGION IN A SEMICONDUCTOR BODY, WHICH COMPRISES CONTACTING THE SEMICONDUCTOR BODY WITH AN ELEMENTAL ALUMINUM FOIL, HEATING THE SEMICONDUCTOR BODY TOGETHER WITH THE ALUMINUM TO A TEMPERATURE ABOVE THE EUTECTIC TEMPERATURE OF THE ALUMINUM-SEMICONDUCTOR ALLOY, AND ADDING AN AMOUNT OF NICKEL FROM 0.5 TO 5.0% BY WEIGHT TO THE ALUMINUM-SEMICONDUCTOR ALLOY PRIOR TO COOLING.
Claim 2
Independent Claim
62 words
THE METHOD OF PRODUCING A HIGHLY DOPED CONDUCTANCE REGION IN A SEMICONDUCTOR BODY, WHICH COMPRISES CONTACTING THE SEMICONDUCTOR BODY WITH AN ELEMENTAL ALUMINUM FOIL, HEATING THE SEMICONDUCTOR BODY TOGETHER WITH THE ALUMINUM TO A TEMPERATURE ABOVE THE EUTECTIC TEMPERATURE OF THE ALUMINUM-SEMICONDUCTOR ALLOY, AND ADDING AN AMOUNT OF NICKEL FROM 0.5 TO 5.0% BY WEIGHT TO THE ALUMINUM-SEMICONDUCTOR ALLOY PRIOR TO COOLING.
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |