US3124493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making the same
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:19
CPC Classifications
H; H10; H10D; H10D62/00; H10D62/10; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; H10D8/00; H10D8/20; H10D8/25; H10D99/00; H10P; H10P95/00; Y; Y10; Y10S; Y10S438/00; Y10S438/965
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD OF MAKING AN ALLOY-JUNCTION SEMICONDUCTOR COMPRISING THE STEPS OF: HEATING BOTH A SEMICONDUCTOR BODY COMPOSED OF SILICON HAVING N-TYPE CONDUCTIVITY AND A LEAD COMPOUND OF ALUMINUM DOPED WITH BORON IN A CONCENTRATION OF BETWEEN APPROXIMATELY, 25% AND 2%; PRESSING SAID BODY AND AN END OF SAID LEAD TOGETHER; MAINTAINING SUFFICIENT PRESSURE AND HEAT UNTIL DIFFUSION OCCURS BETWEEN SAID SILICON BODY AND SAID BORON-DOPED ALUMINUM LEAD AT THE PLACE OF CONTACT; COOLING SAID BODY AND SAID LEAD TO OBTAIN RECRYSTALLIZATION OF SAID DIFFUSED PORTION AND THE CREATION OF A P-N JUNCTION BETWEEN SAID LEAD END
Claim 2
Independent Claim
96 words
A METHOD OF MAKING AN ALLOY-JUNCTION SEMICONDUCTOR COMPRISING THE STEPS OF: HEATING BOTH A SEMICONDUCTOR BODY COMPOSED OF SILICON HAVING N-TYPE CONDUCTIVITY AND A LEAD COMPOUND OF ALUMINUM DOPED WITH BORON IN A CONCENTRATION OF BETWEEN APPROXIMATELY, 25% AND 2%; PRESSING SAID BODY AND AN END OF SAID LEAD TOGETHER; MAINTAINING SUFFICIENT PRESSURE AND HEAT UNTIL DIFFUSION OCCURS BETWEEN SAID SILICON BODY AND SAID BORON-DOPED ALUMINUM LEAD AT THE PLACE OF CONTACT; COOLING SAID BODY AND SAID LEAD TO OBTAIN RECRYSTALLIZATION OF SAID DIFFUSED PORTION AND THE CREATION OF A P-N JUNCTION BETWEEN SAID LEAD END
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |