US3293085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically resistive barrier films and elements embodying the same
Assignee: Arthur D Little Inc
•
Filing: 1962-09-20
•
Granted: 1966-12-20
•
Expires: 1982-09-20
Abstract
No abstract record available.
Inventors
- 👤 Paul H Smith
- 👤 John L Miles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:40
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/0029; H01G9/0032; H01C; H01C17/00; H01C17/06; H01C17/075; H01C17/08; H10; H10D; H10D99/00; H10N; H10N60/00; H10N60/10; H10N60/11; H10N60/12; H10N70/00; H10N97/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A METHOD OF FORMING AN ELECTRICALLY RESISTIVE BARRIER FILM OF A CONTROLLED THICKNESS ON THE SURFACE OF AN ELECTRICALLY CONDUCTING BODY, COMPRISING THE STEPS OF (1) PROVIDING A BODY OF AN ELECTRICALLY CONDUCTING FILM FORMING MATERIAL; (2) APPLYING A REACTANT MEANS TO A SURFACE OF SAID BODY FOR PRODUCING A REACTION PRODUCT DIELECTRIC FILM OF SAID BODY MATERIAL AND SAID REACTANT MEANS ON SAID SURFACE OF SAID BODY TO PROVIDE A THIN PRIMING DIELECTRIC FILM; (3) DEPOSITING ON SAID PRIMING FILM A LAYER OF A DIFFERENT ELECTRICALLY CONDUCTING MATERIAL HAVING A LOWER AFFINITY FOR IONS OF SAID REACTANT MEANS THAN SAID BODY AND CONTAINING AN OCCLUDED QUANTITY OF SAID REACTANT MEANS, SAID FILM AND LAYER DIFFINING A GROWTH INTERFACE AT THEIR MEETING SURFACE; AND (4) APPLYING AN ELECTROSTATIC POTENTIAL MEANS ACROSS SAID PRIMING FILM, AT A TEMPERATURE ABOVE -35*C., FOR DIFFUSING IONS FROM SAID BODY THROUGH SAID DIELECTRIC FILM AND SAID IONS OF SAID REACTANT MEANS TO SAID FILM AT SAID GROWTH INTERFACE WHEREBY SAID RESISTIVE BARRIER FILM IS BUILT UP IN THICKNESS BY THE REACTION PRODUCT OF THE TWO GROUPS OF IONS.
Claim 2
Independent Claim
183 words
A METHOD OF FORMING AN ELECTRICALLY RESISTIVE BARRIER FILM OF A CONTROLLED THICKNESS ON THE SURFACE OF AN ELECTRICALLY CONDUCTING BODY, COMPRISING THE STEPS OF (1) PROVIDING A BODY OF AN ELECTRICALLY CONDUCTING FILM FORMING MATERIAL; (2) APPLYING A REACTANT MEANS TO A SURFACE OF SAID BODY FOR PRODUCING A REACTION PRODUCT DIELECTRIC FILM OF SAID BODY MATERIAL AND SAID REACTANT MEANS ON SAID SURFACE OF SAID BODY TO PROVIDE A THIN PRIMING DIELECTRIC FILM; (3) DEPOSITING ON SAID PRIMING FILM A LAYER OF A DIFFERENT ELECTRICALLY CONDUCTING MATERIAL HAVING A LOWER AFFINITY FOR IONS OF SAID REACTANT MEANS THAN SAID BODY AND CONTAINING AN OCCLUDED QUANTITY OF SAID REACTANT MEANS, SAID FILM AND LAYER DIFFINING A GROWTH INTERFACE AT THEIR MEETING SURFACE; AND (4) APPLYING AN ELECTROSTATIC POTENTIAL MEANS ACROSS SAID PRIMING FILM, AT A TEMPERATURE ABOVE -35*C., FOR DIFFUSING IONS FROM SAID BODY THROUGH SAID DIELECTRIC FILM AND SAID IONS OF SAID REACTANT MEANS TO SAID FILM AT SAID GROWTH INTERFACE WHEREBY SAID RESISTIVE BARRIER FILM IS BUILT UP IN THICKNESS BY THE REACTION PRODUCT OF THE TWO GROUPS OF IONS.
References Cited (Backward Citations)
US1906691A
Cited
US1877140A
Cited
US2005279A
Cited
US2887633A
Cited
US2822606A
Cited
US3056073A
Cited
US3116427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |