Patent US3242018A successfully refreshed from Google Patents.
US3242018A
Expired / Lapsed
US
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Semiconductor device and method of producing it
Assignee: Siemens and Halske AG
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Filing: 1961-06-15
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Granted: 1966-03-22
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Expires: 1981-06-15
Abstract
No abstract record available.
Inventors
- 👤 Grabmaier Josef
- 👤 Rummel Theodor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:08
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/20; H10P14/34; H10P14/3402; H10P14/3404; H10P14/3411; H10D; H10D99/00; H10P10/00; H10P10/12; H10P14/24; H10P14/29; H10P14/2901; H10P14/2902; H10P14/2905; H10P14/32; H10P14/3202; H10P14/3204; H10P14/3211; H10P14/3438; H10P14/3441
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A METHOD OF PRODUCING A SEMICONDUCTOR DEVICE HAVING AT LEAST ONE SINGLE CRYSTAL SEMICONDUCTOR LAYOR CONSISTING OF AN ALLOY OF GERMANIUM AND SILICON, COMPRISING THE FOLLOWING STEPS, NAMELY, THERMALLY DECOMPOSING, UPON A UNIFORMYL HEATED SINGLE CRYSTAL CARRIER CONSISTING OF SILICON, A GASEOUS COMPOUND OF GERMANIUM, TO PRECIPITATE A GERMANIUM LAYER THEREON, HEATING THE CARRIER AND SUCH PRECIPITATE TO A TEMPERATURE REQUIRED FOR THE DESIRED COMPOSITION OF THE ALLOY AND THEREAFTER SLOWLY AND STEADILY COOLING SAID CARRIER, WHEREBY THE PRECIPITATED GERMANIUM IS WHOLLY CONSUMED FOR THE FORMATION OF THE ALLOY, AND THEREUPON TEMPERING THE FORMED ALLOY AT A TEMPERATURE LYING BELOW THE TEMPERATURE OF THE MELTING POINT OF THE ALLOY.
Claim 2
Independent Claim
109 words
A METHOD OF PRODUCING A SEMICONDUCTOR DEVICE HAVING AT LEAST ONE SINGLE CRYSTAL SEMICONDUCTOR LAYOR CONSISTING OF AN ALLOY OF GERMANIUM AND SILICON, COMPRISING THE FOLLOWING STEPS, NAMELY, THERMALLY DECOMPOSING, UPON A UNIFORMYL HEATED SINGLE CRYSTAL CARRIER CONSISTING OF SILICON, A GASEOUS COMPOUND OF GERMANIUM, TO PRECIPITATE A GERMANIUM LAYER THEREON, HEATING THE CARRIER AND SUCH PRECIPITATE TO A TEMPERATURE REQUIRED FOR THE DESIRED COMPOSITION OF THE ALLOY AND THEREAFTER SLOWLY AND STEADILY COOLING SAID CARRIER, WHEREBY THE PRECIPITATED GERMANIUM IS WHOLLY CONSUMED FOR THE FORMATION OF THE ALLOY, AND THEREUPON TEMPERING THE FORMED ALLOY AT A TEMPERATURE LYING BELOW THE TEMPERATURE OF THE MELTING POINT OF THE ALLOY.
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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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |