US3067485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor diode
Assignee: AT&T Inc
•
Filing: 1958-08-13
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Granted: 1962-12-11
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Expires: 1978-08-13
Abstract
No abstract record available.
Inventors
- 👤 David F Ciccolella
- 👤 John H Forster
- 👤 Raymond L Rulison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:43
CPC Classifications
H; H10; H10P; H10P95/00; H10P95/50; H10D; H10D1/00; H10D1/40; H10D10/00; H10D48/00; H10D48/30; H10D48/38; H10D62/00; H10D62/10; H10D62/60; H10D62/80; H10D62/83; H10D62/834; H10D99/00; H10P14/00; H10P14/60; H10P32/00; H10P32/10; H10P32/17; H10P32/171; H10P32/18; H10W; H10W72/00; H10W99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN A PROCESS OF FABRICATING A SEMICONDUCTOR TRANSLATING DEVICE OF THE TYPE SUITABLE AS A HIGH SPEED SWITCH THE STEPS COMPRISING PREPARING A WAFER OF SINGLE CRYSTAL SILICON OF ONE CONDUCTIVITY, AND HEATING SAID BODY AT A TEMPERATURE OF THE RANGE FROM ABOUT 1000 DEGREES CENTIGRADE TO 1300 DEGREES CENTIGRADE IN THE PRESENCE OF GOLD AND A SIGNIFICANT IMPURITY OF THE KIND TO INDUCE THE CONDUCTIVITY TYPE OPPOSITE TO SAID ONE CONDUCTIVITY TYPE FOR A
Claim 2
Dependent Claim
75 words
IN A PROCESS OF FABRICATING A SEMICONDUCTOR TRANSLATING DEVICE OF THE TYPE SUITABLE AS A HIGH SPEED SWITCH THE STEPS COMPRISING PREPARING A WAFER OF SINGLE CRYSTAL SILICON OF ONE CONDUCTIVITY, AND HEATING SAID BODY AT A TEMPERATURE OF THE RANGE FROM ABOUT 1000 DEGREES CENTIGRADE TO 1300 DEGREES CENTIGRADE IN THE PRESENCE OF GOLD AND A SIGNIFICANT IMPURITY OF THE KIND TO INDUCE THE CONDUCTIVITY TYPE OPPOSITE TO SAID ONE CONDUCTIVITY TYPE FOR A
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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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |