Patent US3993647A successfully refreshed from Google Patents.
US3266137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal ball connection to crystals
Assignee: Raytheon Co
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Filing: 1962-06-07
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Granted: 1966-08-16
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Expires: 1982-06-07
Abstract
No abstract record available.
Inventors
- 👤 Mille Cecil L De
- 👤 Jr John G Quetsch
- 👤 Frank J Saia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:59
CPC Classifications
H; H10; H10W; H10W72/00; H10P; H10P95/00; H10W72/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A METHOD OF PROVIDING AN ELECTRODE CONNECTION TO A REGION OF A SILICON CRYSTAL WHICH COMPRISES: FORMING AN ELECTRICALLY INSULATING MASK ON A SURFACE OF THE CRYSTAL, WITH AN APERTURE IN THE MASK; DEPOSITING A LAYER OF GOLD ON THE CRYSTAL IN THE APERTURE; DEPOSITING A LAYER OF TIN UPON A LAYER OF GOLD; HEATING THE CRYSTAL TO AT LEAST 232*C. TO ALLOY SAID LAYERS TO SAID CRYSTAL, FORMING AN ALLOY OF GOLD, TIN AND SILICON; CONTACTING THE ALLOY IN SAID APERTURE WITH AN ELECTRODE OF SILVER AND HEATING THE ASSEMBLE TO ALLOY BOND THE SILVER ELECTRODE TO THE CRYSTAL THROUGH SAID APERTURE.
Claim 2
Independent Claim
103 words
A METHOD OF PROVIDING AN ELECTRODE CONNECTION TO A REGION OF A SILICON CRYSTAL WHICH COMPRISES: FORMING AN ELECTRICALLY INSULATING MASK ON A SURFACE OF THE CRYSTAL, WITH AN APERTURE IN THE MASK; DEPOSITING A LAYER OF GOLD ON THE CRYSTAL IN THE APERTURE; DEPOSITING A LAYER OF TIN UPON A LAYER OF GOLD; HEATING THE CRYSTAL TO AT LEAST 232*C. TO ALLOY SAID LAYERS TO SAID CRYSTAL, FORMING AN ALLOY OF GOLD, TIN AND SILICON; CONTACTING THE ALLOY IN SAID APERTURE WITH AN ELECTRODE OF SILVER AND HEATING THE ASSEMBLE TO ALLOY BOND THE SILVER ELECTRODE TO THE CRYSTAL THROUGH SAID APERTURE.
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |