US3126505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Field effect transistor having grain boundary therein
Assignee: —
•
Filing: —
•
Granted: 1964-03-24
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:03
CPC Classifications
H; H10; H10D; H10D48/00; H10D48/30; H10D48/32; H10D48/36; H10D10/00; H10D30/00; H10D30/80; H10D62/00; H10D62/01; H10D62/10; H10D99/00; H10P; H10P32/00; H10P36/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A FIELD EFFECT TRANSISTOR COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL OF ONE CONDUCTIVITY TYPE HAVING A GRAIN BOUNDARY THEREIN, AND GATE REGIONS OF OPPOSITE CONDUCTIVITY TYPE DIFFUSED INTO SAID BODY TO FORM A JUNCTION THEREWITH AND EXTENDING DEEPER INTO THE BODY AT THE GRAIN BOUNDARY, THE PORTION OF SAID GATE REGIONS EXTENDING TOWARDS ONE ANOTHER ALONG THE GRAIN BOUNDARY DEFINING A RELATIVELY SHORT CHANNEL OF SAID ONE CONDUCTIVITY TYPE, IN THE BODY OF SEMICONDUCTIVE MATERIAL, SOURCE AND DRAIN
Claim 2
Dependent Claim
78 words
A FIELD EFFECT TRANSISTOR COMPRISING A BODY OF SEMICONDUCTIVE MATERIAL OF ONE CONDUCTIVITY TYPE HAVING A GRAIN BOUNDARY THEREIN, AND GATE REGIONS OF OPPOSITE CONDUCTIVITY TYPE DIFFUSED INTO SAID BODY TO FORM A JUNCTION THEREWITH AND EXTENDING DEEPER INTO THE BODY AT THE GRAIN BOUNDARY, THE PORTION OF SAID GATE REGIONS EXTENDING TOWARDS ONE ANOTHER ALONG THE GRAIN BOUNDARY DEFINING A RELATIVELY SHORT CHANNEL OF SAID ONE CONDUCTIVITY TYPE, IN THE BODY OF SEMICONDUCTIVE MATERIAL, SOURCE AND DRAIN
References Cited (Backward Citations)
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Cited
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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) | 1967-03-24 | 1967-09-23 | 1968-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-24 | 1971-09-23 | 1972-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-24 | 1975-09-23 | 1976-03-24 | $7700.00 | Window Closed / Lapsed |