Patent US3770496A successfully refreshed from Google Patents.
US3770496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elimination of dielectric degradation in printed bold/dielectric/palladium-silver structures
Assignee: EIDP Inc
•
Filing: 1971-06-25
•
Granted: 1973-11-06
•
Expires: 1991-06-25
Abstract
Abstract In a method for printing multilayer electronic structures on a substrate which minimizes degradation at crossovers in structures which comprise a gold electrode, dielectric crossovers, and a silver or silver/palladium electrode, in that order, the incorporation of at least 20 percent by weight silver in the metallization used to print the gold electrode. Also provided are objects prepared by the above method.
Inventors
- 👤 O Short
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:50
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/46; H05K3/4685; H10; H10N; H10N97/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24893; Y10T428/24909; Y10T428/24917; Y10T428/24926
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
21 words
A process according to claim 1 wherein there is about 25 percent by weight silver in said first pattern metallization (a).
Claim 2
Dependent Claim
19 words
A process according to claim 1 wherein dielectric layer (b) is fired prior to printing of conductor pattern (c).
Claim 3
Dependent Claim
21 words
A process according to claim 3 wherein there is about 25 percent by weight silver in said first pattern metallization (a).
Claim 4
Dependent Claim
62 words
An electronic device comprising the following sequential coherent layers: a. a dielectric substrate, b. a gold conductor comprising at least 20 percent by weight silver, based on the total weight of gold and silver, c. crossover dielectric layers, and d. a second conductor comprising 0-90 percent palladium and 10-100 percent silver, pattern (d) crossing over pattern (b) only at dielectric layer (c).
Claim 5
Dependent Claim
13 words
A device according to claim 5 wherein (b) comprises about 25 percent silver.
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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |