Patent US3167462A successfully refreshed from Google Patents.
US3167462A
Expired / Lapsed
US
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Method of forming alloyed regions in semiconductor bodies
Assignee: AT&T Inc
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Filing: 1961-06-08
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Granted: 1965-01-26
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Expires: 1981-06-08
Abstract
No abstract record available.
Inventors
- 👤 John L Winkelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:00
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/04; C23C14/042; C22; C22C; C22C21/00; C23C14/06; C23C14/14; C23C14/16; C23C14/58; C23C14/5806; H; H10; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
METHOD OF FORMING AN ALLOYED CONTACT REGION, WHICH SERVES AS AN ELECTRODE, IN AN EXTREMELY THIN SURFACE LAYER OF A SEMICONDUCTOR BODY WHICH COMPRISES VAPOR DEPOSITING ON A LAYER OF THE BODY SEMICONDUCTOR MATERIAL OF THE SAME ELEMENTAL FORM AS THE MATERIAL OF THE BODY TOGETHER WITH AT LEAST 50 PERCENT METAL CONTACT MATERIAL, RAISING THE TEMPERATURE OF THE BODY ABOVE THE MELTING POINT OF THE SEMICONDUCTOR METAL CONACT EUTECTIC TEMPERATURE AND BELOW THE MELTING POINT OF THE BODY, MAINTAINING THE BODY AT A TEMPERATURE PLATEAU SUBSTANTIALLY AT THE RAISED TEMPERATURE FOR AT LEAST SEVERAL MINUTES, AND THEN LOWERING THE TEMPERATURE BELOW THE SAID MELTING POINT.
Claim 2
Dependent Claim
106 words
METHOD OF FORMING AN ALLOYED CONTACT REGION, WHICH SERVES AS AN ELECTRODE, IN AN EXTREMELY THIN SURFACE LAYER OF A SEMICONDUCTOR BODY WHICH COMPRISES VAPOR DEPOSITING ON A LAYER OF THE BODY SEMICONDUCTOR MATERIAL OF THE SAME ELEMENTAL FORM AS THE MATERIAL OF THE BODY TOGETHER WITH AT LEAST 50 PERCENT METAL CONTACT MATERIAL, RAISING THE TEMPERATURE OF THE BODY ABOVE THE MELTING POINT OF THE SEMICONDUCTOR METAL CONACT EUTECTIC TEMPERATURE AND BELOW THE MELTING POINT OF THE BODY, MAINTAINING THE BODY AT A TEMPERATURE PLATEAU SUBSTANTIALLY AT THE RAISED TEMPERATURE FOR AT LEAST SEVERAL MINUTES, AND THEN LOWERING THE TEMPERATURE BELOW THE SAID MELTING POINT.
References Cited (Backward Citations)
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US2629672A
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US2780569A
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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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |