Patent US3058854A successfully refreshed from Google Patents.
US3058854A
Expired / Lapsed
US
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Semiconductor alloys and method of preparing the same
Assignee: Individual
•
Filing: 1957-07-24
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Granted: 1962-10-16
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Expires: 1977-07-24
Abstract
No abstract record available.
Inventors
- 👤 Stephen J Angello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:32
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/02; C30B29/00; C30B29/10; C30B29/52; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
THE METHOD OF PRODUCING A SILICON-GERMANIUM SINGLE CRYSTAL ALLOY OF HOMOGENEOUS COMPOSITION WHICH COMPRISES THE STEPS OF PROVIDING A SATURATED MOLTEN POOL OF SILICON-GERMANIUM ALLOY, CRYSTALLIZING FROM SAID POOL A HOMOGENEOUS SINGLE CRYSTAL HAVING A HIGHER PERCENT OF SILICON THAN SAID POOL WHILE MAINTAINING SAID POOL AT A TEMPERATURE AT WHICH THE DESIRED CRYSTAL COMPOSITION WILL BE OBTAINED, AND REPLENISHING THE SILICON IN SAID MOLTEN POOL BY MAINTAINING A SOURCE OF SOLID SILICON IN CONTACT THEREWITH THEREBY MAINTAINING SAID MOLTEN POOL IN A SATURATED CONDITION AT THE SAID TEMPERATURE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |