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CA1129560A
Expired / Lapsed
CA
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Thick film silver conductor compositions for fine line electrodes
Assignee: EIDP Inc
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Filing: 1979-08-29
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Granted: 1982-08-10
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Expires: 1999-08-29
Abstract
Abstract Title Thick Film Silver Conductor Compositions For Fine Line Electrodes Abstract Thick film conductor compositions, based on finely divided silver, finely divided inorganic anti-fissuring materials, glass frit and organic vehicles are provided. The anti-fissuring materials prevent fissuring of fired metallizations during overglazing and allow the preparation of fine line electrodes useful in multilayer circuits and AC plasma display panels.
Inventors
- 👤 John E. Jolley
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-04 22:56
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/14; H01B1/16; H01J; H01J9/00; H01J9/02; H01J9/14; H01J2211/00; H01J2211/20; H01J2211/22; H01J2211/225; H05; H05K; H05K1/00; H05K1/02; H05K1/09; H05K1/092; H10; H10D; H10D86/00; H10D86/80; H10D86/85
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
111 words
A thick film conductor composition, resistant to fissuring during overglazing, consisting essentially of: (A) 50-85% by weight, based on the weight of the composition, of silver particles having a par-ticle size range of 0.05-20 micrometers; (B) 1-10% by weight, based on the weight of the composition, of inorganic non-glass forming refractory materials or their precursors, having a particle size range of 0.05-44micrometers with at least 80% by weight of the particles in the 0.1-5 micrometer range. (C) 5-20% by weight, based on the weight of the composition, of glass frit having a softening point range of 325-600°C; and (D) 10-30% by weight, based on the weight of the composition, of vehicle.
Claim 2
Dependent Claim
111 words
A thick film conductor composition, resistant to fissuring during overglazing, consisting essentially of: (A) 50-85% by weight, based on the weight of the composition, of silver particles having a par-ticle size range of 0.05-20 micrometers; (B) 1-10% by weight, based on the weight of the composition, of inorganic non-glass forming refractory materials or their precursors, having a particle size range of 0.05-44micrometers with at least 80% by weight of the particles in the 0.1-5 micrometer range. (C) 5-20% by weight, based on the weight of the composition, of glass frit having a softening point range of 325-600°C; and (D) 10-30% by weight, based on the weight of the composition, of vehicle.
Claim 3
Dependent Claim
34 words
The composition of claim 1 wherein said refractory materials or their precursors are selected from the group consisting of aluminum oxide, copper oxide, cadmium oxide, gadolinium oxide, zirconium oxide, cobalt/iron/chromium oxide, aluminum and copper.
Claim 4
Dependent Claim
108 words
A thick film conductor composition con-sisting essentially of: (A) 50-85% by weight, based on the weight of the composition, of silver particles having a par-ticle size range of 0.05-20 micrometers; (B) 1-10% by weight, based on the weight the composition, of inorganic non-glass forming re-fractory materials or their precursors, having a particle size range of 0.05-44 micrometers with at least 80% by weight of the particles in the 0.1-5 micrometer range. (C) 5-20% by weight, based on the weight of the composition, of glass frit having a softening point range of 325-600°C; and (D) 10-30% by weight, based on the weight of the composition, of UV polymerizable vehicle.
Claim 5
Dependent Claim
108 words
A thick film conductor composition con-sisting essentially of: (A) 50-85% by weight, based on the weight of the composition, of silver particles having a par-ticle size range of 0.05-20 micrometers; (B) 1-10% by weight, based on the weight the composition, of inorganic non-glass forming re-fractory materials or their precursors, having a particle size range of 0.05-44 micrometers with at least 80% by weight of the particles in the 0.1-5 micrometer range. (C) 5-20% by weight, based on the weight of the composition, of glass frit having a softening point range of 325-600°C; and (D) 10-30% by weight, based on the weight of the composition, of UV polymerizable vehicle.
Claim 6
Dependent Claim
34 words
The composition of claim 3 wherein said refractory materials or their precursors are selected from the group consisting of aluminum oxide, copper oxide, cadmium oxide, gadolinium oxide, zirconium oxide, cobalt/iron/chromium oxide, aluminum and copper.
Claim 7
Dependent Claim
12 words
The composition of Claim ~ wherein said refractory material is aluminum oxide.
Claim 8
Dependent Claim
12 words
The composition of Claim 4 wherein said refractory material is aluminum oxide.
Claim 9
Dependent Claim
61 words
A thick film conductor composition consisting essentially of: (A) approximately 66 parts by weight, of silver particles having a particle size range of 0.3-10 micrometers; (B) approximately 2.6 parts by weight, of aluminum oxide; (C) approximately 7.9 parts by weight, of lead borosilicate frit having a softening point range of 580-590°C; and (D) approximately 22.6 parts by weight, of UV-polymerizable vehicle.
Claim 10
Dependent Claim
61 words
A thick film conductor composition consisting essentially of: (A) approximately 66 parts by weight, of silver particles having a particle size range of 0.3-10 micrometers; (B) approximately 2.6 parts by weight, of aluminum oxide; (C) approximately 7.9 parts by weight, of lead borosilicate frit having a softening point range of 580-590°C; and (D) approximately 22.6 parts by weight, of UV-polymerizable vehicle.
Claim 11
Dependent Claim
62 words
A process for providing overglaze for fired metallizations comprising the steps of: (A) printing, drying and curing onto a substrate the composition of Claim 1; (B) firing the product of step (A); and (C) applying an overglaze composition over the fired product of step (B) and firing at a temperature and for a time sufficient to produce a clear, smooth, transparent coating.
Claim 12
Dependent Claim
31 words
An AC plasma display panel comprising two overglazed substrates produced by the process of Claim 8, sealed together face-to-face, wherein the space between said two substrates is filled with inert gas.
References Cited (Backward Citations)
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