US3334281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing coatings for semiconductor devices
Assignee: RCA Corp
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Filing: 1964-07-09
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Granted: 1967-08-01
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Expires: 1984-07-09
Abstract
No abstract record available.
Inventors
- 👤 Norman H Ditrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:38
CPC Classifications
H; H10; H10P; H10P14/00; H10P14/60; H10P14/69; H10P14/692; H10P14/6921; H10P14/6922; H10P14/6923; H10D; H10D99/00; H10P14/63; H10P14/6326; H10P14/6328; H10P14/6334; H10P14/65; H10P14/6502; H10P14/6506; H10P14/6516; H10P14/6548; Y; Y10; Y10S; Y10S148/00; Y10S148/043; Y10S148/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN INSULATED-GATE FIELD-EFFECT SEMICONDUCTOR DEVICE COMPRISING: A HIGH RESTIVITY CRYSTALLINE SEMICONDUCTIVE BODY HAVING AT LEAST ONE MAJOR FACE; FIRST AND SECOND SPACED LOW RESTIVITY REGIONS IN SAID BODY IMMEDIATELY ADJACENT SAID ONE MAJOR FACE; A HIGH RESTIVITY-LOW RESTIVITY JUNCTION BETWEEN EACH OF SAID SPACED REGIONS AND SAID BODY; METALLIC ELECTRODE CONTACTS TO SAID FIRST AND SECOND REGIONS; A LAYER OF DIELECTRIC MATERIAL ON SAID FACE COVERING THE GAP BETWEEN SAID REGIONS, SAID DIELECTRIC LAYER BEING HEAVILY DOPED WITH A SUBSTANCE WHICH IS A CONDUCTIVITY MODIFIER FOR SAID BODY; AND, A METALLIC GATE ELECTRODE ON SAID DIELECTRIC LAYER OVER SAID GAP BETWEEN SAID REGIONS.
Claim 2
Dependent Claim
103 words
AN INSULATED-GATE FIELD-EFFECT SEMICONDUCTOR DEVICE COMPRISING: A HIGH RESTIVITY CRYSTALLINE SEMICONDUCTIVE BODY HAVING AT LEAST ONE MAJOR FACE; FIRST AND SECOND SPACED LOW RESTIVITY REGIONS IN SAID BODY IMMEDIATELY ADJACENT SAID ONE MAJOR FACE; A HIGH RESTIVITY-LOW RESTIVITY JUNCTION BETWEEN EACH OF SAID SPACED REGIONS AND SAID BODY; METALLIC ELECTRODE CONTACTS TO SAID FIRST AND SECOND REGIONS; A LAYER OF DIELECTRIC MATERIAL ON SAID FACE COVERING THE GAP BETWEEN SAID REGIONS, SAID DIELECTRIC LAYER BEING HEAVILY DOPED WITH A SUBSTANCE WHICH IS A CONDUCTIVITY MODIFIER FOR SAID BODY; AND, A METALLIC GATE ELECTRODE ON SAID DIELECTRIC LAYER OVER SAID GAP BETWEEN SAID REGIONS.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |