US3756872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making non-planar semiconductor devices
Assignee: ZF International UK Ltd
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Filing: 1969-10-06
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Granted: 1973-09-04
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Expires: 1989-10-06
Abstract
Abstract IN THE MANUFACTURE OF A SEMI-CONDUCTOR DEVICE, A WAFER WITH AT LEAST ONE P ZONE AND AT LEAST ONE N ZONE IS POSITIONED ON A SUPPORT AND DIVIDED INTO A PLURALITY OF PARTS EACH OF WHICH IS TO CONSTITUTE A DEVICE, CHANNELS BEING DEFINED BETWEEN THE DEVICES AND P-N JUNCTIONS BEING EXPOSED IN THE CHANNELS. A CURABLE COMPOUND IS THEN POURED INTO THE CHANNELS, THIS COMPOUND BEING CAPABLE OF PROTECTING THE P-N JUNCTIONS, AND FINALLY THE COMPOUND IS CURED SO AS TO FORM A PROTECTIVE FILM OVER THE JUNCTIONS.
Inventors
- 👤 D Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:01
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/60; H10P14/69; H10P14/692; H10P14/6921; H10P14/6922; H10P14/63; H10P14/6326; H10P14/6342; H10P14/65; H10P14/6516; H10P54/00; H10P72/00; H10P72/70; H10P72/74; H10P72/7402; H10P95/00; H10W; H10W74/00; H10W74/10; H10W74/131; H10P72/7416; Y; Y10; Y10S; Y10S438/00; Y10S438/977
Claims Analysis
Total Claims: 0
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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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |