US3922387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallizations comprising nickel oxide
Assignee: EIDP Inc
•
Filing: 1974-06-05
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Granted: 1975-11-25
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Expires: 1994-06-05
Abstract
Abstract In compositions of noble metal(s) dispersed in an inert vehicle which are useful for forming electrodes on dielectric substrates, improved electrode compositions comprising an amount of NiO effective to increase fired conductor adhesion to substrates; since the resultant fired electrodes have increased adhesion to ceramic dielectric substrates, they have special utility in forming surface metallizations in electronic circuits.
Inventors
- 👤 John Robert Larry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:59
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/08; C23C24/082; C23C24/085; C04; C04B; C04B41/00; C04B41/45; C04B41/50; C04B41/51; C04B41/5183; C04B41/80; C04B41/81; C04B41/85; C04B41/88; H; H01; H01B; H01B1/00; H01B1/14; H01B1/16; H10; H10N; H10N97/00; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
30 words
ELECTRICAL CONDUCTORS ON A CERAMIC SUBSTRATE, THE CONDUCTORS CONSISTING ESSENTIALLY OF METALLIZATIONS OF FINELY DIVIDED POWDERS COMPRISING NOBLE METALS AND 0.1-10% NICKEL OXIDE, BY WEIGHT OF THE NOBLE METAL PRESENT.
Claim 2
Dependent Claim
30 words
ELECTRICAL CONDUCTORS ON A CERAMIC SUBSTRATE, THE CONDUCTORS CONSISTING ESSENTIALLY OF METALLIZATIONS OF FINELY DIVIDED POWDERS COMPRISING NOBLE METALS AND 0.1-10% NICKEL OXIDE, BY WEIGHT OF THE NOBLE METAL PRESENT.
Claim 3
Dependent Claim
13 words
Electrical conductors according to claim 1 wherein the amount of NiO is 1-4%.
Claim 4
Dependent Claim
22 words
Electrical conductors according to claim 1 wherein the noble metal is selected from the class consisting of palladium, platinum, gold and silver.
Claim 5
Dependent Claim
12 words
Electrical conductors according to claim 1 wherein the noble metal is palladium/silver.
Claim 6
Dependent Claim
12 words
Electrical conductors according to claim 2 wherein the noble metal is palladium/silver.
Claim 7
Dependent Claim
12 words
Electrical conductors according to claim 3 wherein the noble metal is palladium/silver.
References Cited (Backward Citations)
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US3450545A
Cited
US3649567A
Cited
US3776769A
Cited
US3824127A
Cited
US3838071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |