US3377522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass molded type semiconductor device
Assignee: NEC Corp
•
Filing: 1964-11-24
•
Granted: 1968-04-09
•
Expires: 1984-11-24
Abstract
No abstract record available.
Inventors
- 👤 Tsuji Shigeru
- 👤 Anazawa Shinzo
- 👤 Koyama Tsukasa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:04
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/10; H10W74/111; H10W74/114; H10W74/40; H10W74/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
AN IMPROVED SEMICONDUCTOR DEVICE COMPRISING: A SEMICONDUCTOR ELEMENT HAVING CONNECTING LEADS, SAID ELEMENT AND PORTIONS OF SAID LEADS BEING ENCAPSULATED IN GLASS, SAID GLASS HAVING BEEN FORMED FROM A COMPOSITION INCLUDING A LOW MELTING POINT GLASS AND A POROUS SOLID SUBSTANCE THAT IS SUBSTANTIALLY NON-REACTIVE WITH SAID LOW MELTING POINT GLASS, AND SAID GLASS BEING CHARACTERIZED BY HAVING SUBSTANTIALLY UNIFORMLY DISPERSED AIR BUBBLES THROUGHOUT THE SAME WHEREBY A GLASS SEAL HAVING AN EXTREMELY LOW VALUE OF STRAIN IS PRODUCED AROUND SAID SEMICONDUCTOR ELEMENT.
Claim 2
Dependent Claim
83 words
AN IMPROVED SEMICONDUCTOR DEVICE COMPRISING: A SEMICONDUCTOR ELEMENT HAVING CONNECTING LEADS, SAID ELEMENT AND PORTIONS OF SAID LEADS BEING ENCAPSULATED IN GLASS, SAID GLASS HAVING BEEN FORMED FROM A COMPOSITION INCLUDING A LOW MELTING POINT GLASS AND A POROUS SOLID SUBSTANCE THAT IS SUBSTANTIALLY NON-REACTIVE WITH SAID LOW MELTING POINT GLASS, AND SAID GLASS BEING CHARACTERIZED BY HAVING SUBSTANTIALLY UNIFORMLY DISPERSED AIR BUBBLES THROUGHOUT THE SAME WHEREBY A GLASS SEAL HAVING AN EXTREMELY LOW VALUE OF STRAIN IS PRODUCED AROUND SAID SEMICONDUCTOR ELEMENT.
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) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |