US3590342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mos integrated circuit with regions of ground potential interconnected through the semiconductor substrate
Assignee: HP Inc
•
Filing: 1968-11-06
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Granted: 1971-06-29
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Expires: 1988-11-06
Abstract
Abstract In a P-channel MOS integrated circuit each active P -type region to be operated at ground potential is connected by a conductor to an adjacent N -type region in the N-type substrate thereby interconnecting these active regions through the substrate.
Inventors
- 👤 Hans J Jekat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:54
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/20; H10D; H10D84/00; H10D84/80; H10D84/82; H10D84/83; Y; Y10; Y10S; Y10S148/00; Y10S148/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
An integrated circuit as in claim 1 wherein: an insulating layer is supported on saId semiconductor substrate, openings being provided in the insulating layer to allow contact to said regions of the first and second conductivity types; and a gate electrode is provided for each MOS transistor, each gate electrode comprising a conductive layer supported on said insulating layer above a region of said semiconductor substrate between an adjacent pair of source and drain electrodes.
Claim 2
Dependent Claim
38 words
An integrated circuit as in claim 2 wherein: the semiconductor substrate is N conductivity type; the regions of the first conductivity type are N conductivity type; and the regions of the second conductivity type are P conductivity type.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |