US3275557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making mercury-doped germanium semiconductor crystals
Assignee: US Philips Corp
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Filing: 1963-11-13
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Granted: 1966-09-27
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Expires: 1983-11-13
Abstract
No abstract record available.
Inventors
- 👤 Ray C Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:00
CPC Classifications
C; C30; C30B; C30B13/00; C30B13/08; C30B13/10; C30B13/12; H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S117/00; Y10S117/906; Y10S117/918; Y10S148/00; Y10S148/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD OF GROWING MERCURY-DOPED GERMANIUM SEMI-CONDUCTOR CRYSTALS, COMPRISING THE STEP OF CRYSTALLIZING THE GERMANIUM FROM A MELT IN A SEALED SYSTEM CONTAINING A WEIGHTED CHARGE OF MERCURY AS THE ACTIVE DOPANT WHILE MAINTAINING THE MINIMUM TEMPERATURE PREVAILING WITHIN ANY POINT OF THE SYSTEM AT A VALUE AT WHICH THE TOTAL MERCURY CHARGE IS FULLY VAPORIZED ESTABLISHING WITHIN THE SEALED SYSTEM OVER THE MELT AN UNSATURATED VAPOR OF MERCURY WHOSE PRESSURE IS DETERMINED BY THE SAID MINIMUM TEMPERATURE TO DISSOLVE IN THE MELT AN ACCURATELY CONTROLLED QUANTITY OF MERCURY.
Claim 2
Independent Claim
89 words
A METHOD OF GROWING MERCURY-DOPED GERMANIUM SEMI-CONDUCTOR CRYSTALS, COMPRISING THE STEP OF CRYSTALLIZING THE GERMANIUM FROM A MELT IN A SEALED SYSTEM CONTAINING A WEIGHTED CHARGE OF MERCURY AS THE ACTIVE DOPANT WHILE MAINTAINING THE MINIMUM TEMPERATURE PREVAILING WITHIN ANY POINT OF THE SYSTEM AT A VALUE AT WHICH THE TOTAL MERCURY CHARGE IS FULLY VAPORIZED ESTABLISHING WITHIN THE SEALED SYSTEM OVER THE MELT AN UNSATURATED VAPOR OF MERCURY WHOSE PRESSURE IS DETERMINED BY THE SAID MINIMUM TEMPERATURE TO DISSOLVE IN THE MELT AN ACCURATELY CONTROLLED QUANTITY OF MERCURY.
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |