US3798145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Technique for reducing interdiffusion rates and inhibiting metallic compound formation between titanium and platinum
Assignee: AT&T Inc
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Filing: 1972-05-30
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Granted: 1974-03-19
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Expires: 1992-05-30
Abstract
Abstract A TECHNIQUE FOR REDUCING THE INTERDIFFUSION RATES AND INHIBITING INTERMETALLIC COMPOUND FORMATION BETWEEN THIN FILM TITANIUM-PLATINUM METALLIZATIONS INVOLVES INCORPORATING A TITANIUM NITRIDE LAYER INTERMEDIATE THE TITANIUM AND PLATIINUM.
Inventors
- 👤 P Fournier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:40
CPC Classifications
H; H10; H10W; H10W74/00; H10W74/40; H10W74/43; C; C23; C23C; C23C28/00; H10D; H10D99/00; H10P; H10P95/00; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12576; Y10T428/12583
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |