US3151004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductor devices
Assignee: RCA Corp
•
Filing: 1961-03-30
•
Granted: 1964-09-29
•
Expires: 1981-03-30
Abstract
No abstract record available.
Inventors
- 👤 Glicksman Richard
- 👤 Edgar T Casterline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:22
CPC Classifications
H; H10; H10P; H10P95/00; C; C25; C25F; C25F3/00; C25F3/02; C25F3/12; H10D; H10D99/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A SEMICONDUCTOR JUNCTION DEVICE COMPRISING A SEMICONDUCTIVE WAFER OF GIVEN CONDUCTIVITY TYPE, A MASK OF ELECTRICALLY INSULATING MATERIAL ON A PORTION OF ONE FACE OF SAID WAFER, AND A MASS OF OPOSITE CONDUCTIVITY TYPEDETERMINING MATERIAL ON SAID MASK ALLOYED TO SAID ONE WAFER FACE ONLY AROUND SAID MASK PERIPHERY SO AS TO FORM A RECTIFYING BARRIER AROUND THE OUTER PERIPHERY ONLY OF SAID MASK, SAID ONE WAFER FCE SLOPING DOWNWARD FROM SAID PERIPHERY OF SAID MASK SO AS TO RESTRICT THE AREA OF SAID RECTIFYING BARRIER.
Claim 2
Dependent Claim
86 words
A SEMICONDUCTOR JUNCTION DEVICE COMPRISING A SEMICONDUCTIVE WAFER OF GIVEN CONDUCTIVITY TYPE, A MASK OF ELECTRICALLY INSULATING MATERIAL ON A PORTION OF ONE FACE OF SAID WAFER, AND A MASS OF OPOSITE CONDUCTIVITY TYPEDETERMINING MATERIAL ON SAID MASK ALLOYED TO SAID ONE WAFER FACE ONLY AROUND SAID MASK PERIPHERY SO AS TO FORM A RECTIFYING BARRIER AROUND THE OUTER PERIPHERY ONLY OF SAID MASK, SAID ONE WAFER FCE SLOPING DOWNWARD FROM SAID PERIPHERY OF SAID MASK SO AS TO RESTRICT THE AREA OF SAID RECTIFYING BARRIER.
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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) | 1967-09-29 | 1968-03-30 | 1968-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-29 | 1972-03-30 | 1972-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-29 | 1976-03-30 | 1976-09-29 | $7700.00 | Window Closed / Lapsed |