US3920485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin insulating film containing metallic particles
Assignee: United States Department of the Navy
•
Filing: 1973-05-21
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Granted: 1975-11-18
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Expires: 1993-05-21
Abstract
Abstract An oxide layer formed on a metallic surface has platelets of the metallic substance disposed therein at selected sites or in selected patterns depending upon the use of the composition in the fabrication of solid state electronic devices.
Inventors
- 👤 George S Ansell
- 👤 Gary Judd
- 👤 Carl A Grove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:50
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A METHOD FOR FABRICATING A THIN FILM ELECTRONIC CIRCUIT COMPONENT WHICH COMPRISES THE STEPS OF EXPOSING A SURFACE AREA OF A METALLIC ELEMENT TO AN ATMOSPHERE CONTAINING OXYGEN SO AS TO CAUSE AN INSULATING OXIDE LAYER TO START FORMING THEREON AND WHILE SAID LAYER IS BEING FORMED, DIRECTING A HIGH ENERGY ELECTRON BEAM INTO SELECTED LOCATIONS WITHIN SAID AREA SO THAT IONS OF THE METALLIC SUBSTANCE, WHICH ARE DIFFUSING THROUGH SAID OXIDE LAYER AT SAID LOCATIONS AS SAID LAYER IS BEING FORMED, BECOME DEIONIZED BY THE CAPTURE OF AN ELECTRON. THE NEUTRAL ATOMS OF THE METALLIC SUBSTANCE THUS FORMED SUBSEQUENTLY CAPTURING ELECTRONS, BECOMING CHARGED OPPOSITELY FROM THE DIFFUSING METALLIC IONS WHICH MIGRATE THERETO BECOME DEIONIZED AND CONTRIBUTE TO THE GROWTH OF PLATELETS WITHIN SAID OXIDE LAYER WHEREBY A THIN INSULATING FILM CONTAINING CONDUCTING PLATELETS IS PRODUCED.
Claim 2
Independent Claim
136 words
A METHOD FOR FABRICATING A THIN FILM ELECTRONIC CIRCUIT COMPONENT WHICH COMPRISES THE STEPS OF EXPOSING A SURFACE AREA OF A METALLIC ELEMENT TO AN ATMOSPHERE CONTAINING OXYGEN SO AS TO CAUSE AN INSULATING OXIDE LAYER TO START FORMING THEREON AND WHILE SAID LAYER IS BEING FORMED, DIRECTING A HIGH ENERGY ELECTRON BEAM INTO SELECTED LOCATIONS WITHIN SAID AREA SO THAT IONS OF THE METALLIC SUBSTANCE, WHICH ARE DIFFUSING THROUGH SAID OXIDE LAYER AT SAID LOCATIONS AS SAID LAYER IS BEING FORMED, BECOME DEIONIZED BY THE CAPTURE OF AN ELECTRON. THE NEUTRAL ATOMS OF THE METALLIC SUBSTANCE THUS FORMED SUBSEQUENTLY CAPTURING ELECTRONS, BECOMING CHARGED OPPOSITELY FROM THE DIFFUSING METALLIC IONS WHICH MIGRATE THERETO BECOME DEIONIZED AND CONTRIBUTE TO THE GROWTH OF PLATELETS WITHIN SAID OXIDE LAYER WHEREBY A THIN INSULATING FILM CONTAINING CONDUCTING PLATELETS IS PRODUCED.
References Cited (Backward Citations)
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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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |