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US 5,571,455 AGranted
Composition for forming electroconductive pattern and process for producing the same
AssigneeDai Nippon Insatsu Kabushiki Kaisha
InventorNaoshige Higuchi
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Abstract
The present invention relates to a composition for forming an electroconductive pattern excellent in electroconductivity, comprising as main components (a) an alloy powder which is obtained by cooling and finely dividing an eutectic mixture comprising 99.5%-94.5% by weight of nickel and 0.5%-5.5% by weight of boron, (b) a glass frit and (c) an organic vehicle, and a process for forming an electroconductive pattern with the composition.
Claims15
A composition for forming an electroconductive pattern, comprising:
- (a) an alloy powder which is obtained by cooling and finely dividing an eutectic mixture consisting of from 96.3% to 98.0% by weight of nickel and from 2.0% to 3.7% by weight of boron, said eutectic mixture being prepared by melting at a temperature of at least 1450.degree. C.;
- (b) a glass frit having a softening point in the range of 400.degree.-550.degree. C.;
- and
- (c) an organic vehicle, the decomposition temperature of the organic vehicle being lower than the softening point of the glass frit.
1 more element
A process for forming an electroconductive pattern, comprising the steps of:
- coating the surface of (a) an alloy powder which is obtained by cooling and finely dividing an eutectic mixture consisting of from 96.3% to 98.0% by weight of nickel and from 2.0% to 3.7% by weight of boron with an organic resin insulating layer, said eutectic mixture being prepared by melting at a temperature of at least 1450.degree. C.;
- coating the surface of (b) a glass frit having a softening point in the range of 400.degree.-550.degree. C. with an organic resin insulating layer, the decomposition temperature of the organic resin being lower than the softening point of the glass frit;
- mixing the thus coated alloy powder and glass frit to form a toner;
- adhering the thus obtained toner to a photosensitive element having been charged in the form of a pattern to be formed;
- electrostatically transferring the toner formed on the photosensitive element onto a substrate in the form of the pattern by an electrostatic means;
- and
- heating to calcine the pattern to obtain the electroconductive pattern.
4 more elements
Dependencies are inferred from the claim text.