Patent US3155885A successfully refreshed from Google Patents.
US3155885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed semiconductor devices
Assignee: Westinghouse Electric Corp
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Filing: 1962-09-21
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Granted: 1964-11-03
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Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Marino Joseph
- 👤 Thomas P Nowalk
- 👤 William R Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:00
CPC Classifications
H; H10; H10W; H10W72/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
190 words
A SEALED ELECTRICAL DEVICE COMPRISING A GOOD THERMALLY CONDUCTIVE SUPPORT HAVING A PERIPHERAL FLANGE HAVING AN UPPER SURFACE AND AN UPWARDLY EXTENDING, THREADED BASE MOUNTING PORTION HAVING AN UPPER SURFACE; A SEMICONDUCTOR ELEMENT DISPOSED ON THE UPPER SURFACE OF THE BASE MOUNTING PORTION; AT LEAST ONE ELECTRICAL CONDUCTOR DISPOSED TO THE SEMICONDUCTOR ELEMENT; AT LEAST ONE SPRING MEMBER DISPOSED ON THE ELEMENT; A CYLINDRICAL METAL MEMBER HAVING AN INTEGRALLY CONNECTED APERTURED CAP AT THE UPPER END THEREOF AND A THREADED SEGMENT ON THE INNER PERIPHERY OF THE LOWER END DISPOSED ON THE BASE MOUNTING PORTION AND ENCLOSING THE ELEMENT, THE THREADED SEGMENT COOPERATING WITH THE THREADS ON THE BASE MOUNTING PORTION TO PROVIDE A CONSTANT PRESSURE ON THE SPRING MEMBER THEREBY EXERTING PRESSURE ON THE SEMICONDUCTOR ELEMENT TO PROVIDE GOOD ELECTRICAL CONTACT BETWEEN THE ELECTRICAL LEAD AND THE ELEMENT AND BETWEEN THE ELEMENT AND THE UPPER SURFACE OF THE BASE MOUNTING PORTION, AND A HEADER MEMBER CONTAINING AN INSULATING SEGMENT WITH THE ELECTRICAL CONDUCTOR PASSING THERETHROUGH JOINED TO THE OUTER PERIPHERY OF THE UPPER SURFACE OF THE FLANGE OF THE SUPPORT TO PROVIDE A HERMETIC ENCLOSURE FOR THE SEMICONDUCTOR ELEMENT.
Claim 2
Dependent Claim
190 words
A SEALED ELECTRICAL DEVICE COMPRISING A GOOD THERMALLY CONDUCTIVE SUPPORT HAVING A PERIPHERAL FLANGE HAVING AN UPPER SURFACE AND AN UPWARDLY EXTENDING, THREADED BASE MOUNTING PORTION HAVING AN UPPER SURFACE; A SEMICONDUCTOR ELEMENT DISPOSED ON THE UPPER SURFACE OF THE BASE MOUNTING PORTION; AT LEAST ONE ELECTRICAL CONDUCTOR DISPOSED TO THE SEMICONDUCTOR ELEMENT; AT LEAST ONE SPRING MEMBER DISPOSED ON THE ELEMENT; A CYLINDRICAL METAL MEMBER HAVING AN INTEGRALLY CONNECTED APERTURED CAP AT THE UPPER END THEREOF AND A THREADED SEGMENT ON THE INNER PERIPHERY OF THE LOWER END DISPOSED ON THE BASE MOUNTING PORTION AND ENCLOSING THE ELEMENT, THE THREADED SEGMENT COOPERATING WITH THE THREADS ON THE BASE MOUNTING PORTION TO PROVIDE A CONSTANT PRESSURE ON THE SPRING MEMBER THEREBY EXERTING PRESSURE ON THE SEMICONDUCTOR ELEMENT TO PROVIDE GOOD ELECTRICAL CONTACT BETWEEN THE ELECTRICAL LEAD AND THE ELEMENT AND BETWEEN THE ELEMENT AND THE UPPER SURFACE OF THE BASE MOUNTING PORTION, AND A HEADER MEMBER CONTAINING AN INSULATING SEGMENT WITH THE ELECTRICAL CONDUCTOR PASSING THERETHROUGH JOINED TO THE OUTER PERIPHERY OF THE UPPER SURFACE OF THE FLANGE OF THE SUPPORT TO PROVIDE A HERMETIC ENCLOSURE FOR THE SEMICONDUCTOR ELEMENT.
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) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |