Patent US4105028A successfully refreshed from Google Patents.
US3271124A
Expired / Lapsed
US
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Semiconductor encapsulation
Assignee: AT&T Inc
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Filing: 1963-09-16
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Granted: 1966-09-06
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 James E Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:48
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/01; H10W74/40; H10W74/43; H10W76/00; H10W76/10; H10W76/12; H10W76/13; H10W76/138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE PROCESS OF FABRICATING A SEMICONDUCTOR ASSEMBLY COMPRISING THE STEPS OF: FORMING A LAMINATED TUBULAR ENVELOPE HAVING AN INNER LAYER OF SUBSTANTIALLY ALKALI-FREE GLASS AND AN OUTER LAYER OF A CHEMICALLY DURABLE GLASS WHICH HAS A COMPOSITION THAT IS NOT ALKALI-FREE; POSITIONING THE ENVELOPE AROUND TWO METAL STUDS WHICH CONTAIN A SEMICONDUCTOR ELEMENT THEREBETWEEN; HEATING THE ENVELOPE TO A TEMPERATURE ABOVE THE SOFTENING POINT TEMPERATURE OF BOTH OF THE TWO LAYERS; INCREASING THE AMBIENT PRESSURE TO WHICH THE ENVELOPE IS SUBJECTED, THEREBY FORMING A SEAL BETWEEN THE ENVELOPE AND THE TWO STUDS; AND COOLING THE ENVELOPE.
Claim 2
Dependent Claim
96 words
THE PROCESS OF FABRICATING A SEMICONDUCTOR ASSEMBLY COMPRISING THE STEPS OF: FORMING A LAMINATED TUBULAR ENVELOPE HAVING AN INNER LAYER OF SUBSTANTIALLY ALKALI-FREE GLASS AND AN OUTER LAYER OF A CHEMICALLY DURABLE GLASS WHICH HAS A COMPOSITION THAT IS NOT ALKALI-FREE; POSITIONING THE ENVELOPE AROUND TWO METAL STUDS WHICH CONTAIN A SEMICONDUCTOR ELEMENT THEREBETWEEN; HEATING THE ENVELOPE TO A TEMPERATURE ABOVE THE SOFTENING POINT TEMPERATURE OF BOTH OF THE TWO LAYERS; INCREASING THE AMBIENT PRESSURE TO WHICH THE ENVELOPE IS SUBJECTED, THEREBY FORMING A SEAL BETWEEN THE ENVELOPE AND THE TWO STUDS; AND COOLING THE ENVELOPE.
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |