US2998558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor device and method of manufacturing same
Assignee: Pacific Semiconductors Inc
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Filing: 1959-10-19
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Granted: 1961-08-29
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Expires: 1979-10-19
Abstract
No abstract record available.
Inventors
- 👤 Clinton E Maiden
- 👤 Donna A German
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:11
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
AN ENCAPSULATED SEMICONDUCTOR DEVICE COMPRISING: AN ACTIVE CRYSTAL ELEMENT OF SEMICONDUCTOR MATERIAL, SAID ACTIVE CRYSTAL ELEMENT INCLUDING A PREESTERIFIED FILM OF SAID MATERIAL FORMED ON THE SURFACE OF SAID CRYSTAL ELEMENT, LEAD WIRES AFFIXED TO AND EXTENDING FROM SAID CRYSTAL ELEMENT, A DEPOSITED COATING OF GLASS SURROUNDING SAID CRYSTAL ELEMENT AND A PORTION OF SAID LEAD WIRES ADJACENT SAID CRYSTAL ELEMENT, SAID GLASS HAVING A RELATIVELY LOW TEMPERATURE MELTING POINT BELOW THE DAMAGE TEMPERATURE OF SAID CRYSTAL ELEMENT AND LEAD WIRES, SAID DEPOSITED COATING OF GLASS BEING IN HERMETIC SEALING CONTACT WITH SAID CRYSTAL ELEMENT AND SAID LEAD WIRES, SAID GLASS COATING BEING OF SUFFICIENT THICKNESS TO PREVENT THE PASSAGE OF MOISTURE THERETHROUGH.
Claim 2
Dependent Claim
113 words
AN ENCAPSULATED SEMICONDUCTOR DEVICE COMPRISING: AN ACTIVE CRYSTAL ELEMENT OF SEMICONDUCTOR MATERIAL, SAID ACTIVE CRYSTAL ELEMENT INCLUDING A PREESTERIFIED FILM OF SAID MATERIAL FORMED ON THE SURFACE OF SAID CRYSTAL ELEMENT, LEAD WIRES AFFIXED TO AND EXTENDING FROM SAID CRYSTAL ELEMENT, A DEPOSITED COATING OF GLASS SURROUNDING SAID CRYSTAL ELEMENT AND A PORTION OF SAID LEAD WIRES ADJACENT SAID CRYSTAL ELEMENT, SAID GLASS HAVING A RELATIVELY LOW TEMPERATURE MELTING POINT BELOW THE DAMAGE TEMPERATURE OF SAID CRYSTAL ELEMENT AND LEAD WIRES, SAID DEPOSITED COATING OF GLASS BEING IN HERMETIC SEALING CONTACT WITH SAID CRYSTAL ELEMENT AND SAID LEAD WIRES, SAID GLASS COATING BEING OF SUFFICIENT THICKNESS TO PREVENT THE PASSAGE OF MOISTURE THERETHROUGH.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |