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4793946 |
Thin print etchable gold conductor composition
A thin print etchable gold conductor composition for use in metallizing surfaces of substrates, particularly those used in the construction of miniaturized high density circuits is disclosed. The...
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4786437 |
One-component, particle-filled compositions
Unfavorable interaction is prevented between (a) electroconductive particle fillers and (b) organic resin binders of the type which are normally instable with respect to viscosity when aged in...
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4780248 |
Thick film electronic materials
Thick film electronic compositions comprising finely divided particles of electrically functional material and a PbO-compatible inorganic binder dispersed in an organic medium in which 0.1 to 10.0%...
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4780371 |
Electrically conductive composition and use thereof
An electrically conductive composition containing a photosensitive epoxy polymer, a reactive plasticizer, and electrically conductive spherical particles wherein the outer surfaces are of a...
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4776978 |
Method of controlling the sintering of metal particles
Sintering of metal particles at their normal sintering temperature is inhibited by coating the metal particles with an organic material such as polyvinyl butyral, polyvinyl formvar, polyvinyl...
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4777205 |
Electrically conductive compositions
An electrically conductive organopolysiloxane composition containing (1) an organopolysiloxane capable of being crosslinked, (2) a crosslinking agent capable of reacting with the...
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4775414 |
Inorganic adhesive
Inorganic adhesives suitable for bonding metals to metals, metals to ceramics, or ceramics to ceramics with high bonding strength are disclosed, which contain a composite mechanical alloy powder...
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4769115 |
Process for preparing electrically conductive polymer
An electrically conductive polymer is produced by dissolving or dispersing a monomer of an aromatic compound or a derivative thereof and an electrolyte in an organic polar medium, effecting an...
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4765929 |
Silk-screenable circuit paste
A silk-screenable circuit paste which can be screen-printed onto a circuit board with minimum pinholing or void formation is provided. The silk-screenable circuit paste of the present invention...
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4761224 |
Silver-glass paste with poly-modal flake size distribution and quick dry vehicle
A silver glass paste consists of 60-75% silver flake having a tap density greater than 2.8 gm/cc and less than 5.0 gm/cc. The silver flake has a poly-modal flake size distribution. The paste...
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4759874 |
Benzocyclobutene-based die attach adhesive compositions
The invention is a die attach adhesive composition comprising a homogeneous blend of an organopolysiloxane-bridged bisbenzocyclobutene monomer, an organosilane adhesion aid, and a finely divided...
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4758486 |
Endless belt shaped electrophotographic photoconductor
An endless belt shaped electrophotographic photoconductor is disclosed, which comprises an electroconductive support material, a photoconductive layer formed thereon, a joint portion by which the...
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4756848 |
Curable mixtures containing copolymerizable dibenzalacetone palladium complexes
Compounds of formula I ##STR1## wherein R 1 is hydroxyl or glycidyloxy, R 2 is hydrogen, alkyl, alkoxy, halogen, aryl, aralkyl or alkaryl, R 3 is hydrogen or alkyl or both R 3 s together are...
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4752713 |
Thermionic cathode of high emissive power for an electric tube, and process for its manufacture
A reactionless thermionic cathode for electronic tubes consists of a metallic or ceramic support and an alloy, preferably an intermetallic compound, containing the actual emission-promoting...
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4747968 |
Low temperature cure having single component conductive adhesive
An electrically conductive adherent film-forming adhesive which is rapidly curable thermally from a flowable liquid to an adherent and coherent solid at temperatures below about 120° C. and with a...
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4746838 |
Ink for forming resistive structures and display panel containing the same
An ink for use in forming resistive structures for use in a gas discharge display panel containing mercury vapor to inhibit cathode sputtering, the ink comprising a mixture of silver and nickel...
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4743399 |
Adhesive compositions from arylcyclobutene monomeric compositions
Two solid substrates are bonded together by using a functionally effective amount of an arylcyclobutene monomeric composition as an adhesive.
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4732702 |
Electroconductive resin paste
An electroconductive resin paste, comprising a resin obtained by reacting 0.01 to 0.5 carboxylic acid equivalent of a homopolymer or a copolymer of butadiene having carboxylic acid terminal groups...
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4732560 |
Humidity protected radiation-responsive switch
A multilamp photoflash unit responsive to either a high pulse potential source or a low voltage source includes normally open (N/O) switches having a composition which includes an admixture of...
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4729809 |
Anisotropically conductive adhesive composition
An anisotropically conductive adhesive composition (10) for use in electrically connecting at least one conductive area (14) on one substrate (12) with at least one conductive area (20) on a second...
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4728781 |
Heated backlights
A heated automobile backlight having a dark colored electroconductive grid. The composition includes silver powder, a glass frit such a lead borosilicate frit, and reducing agents such as stannous...
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4728562 |
Dielectric composition
The invention relates to a dielectric composition which, in particular, is useable in the thick layer technology for making printed condensers by means of the screen printing process. The...
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4726991 |
Electrical overstress protection material and process
A material provides protection against electrical overstress transients having rise times as rapid as a few nanoseconds or less. The material comprises a matrix formed of a mixture of separate...
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4716081 |
Conductive compositions and conductive powders for use therein
An improved silver-coated copper-based powder which is characterized by extraordinary stability, in terms of electroconductivity, when the powder is utilized with organic resin to form...
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4715989 |
Coating for EMI shielding
An aqueous based electrically conductive paint having substantially enhanced settling properties employing a nickel flake pigment and a surfactant having substantial unsaturation characteristics....
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4704657 |
Multilayer ceramic capacitor and process for preparation thereof
In a multilayer ceramic capacitor comprising internal electrodes of an Ag-Pd alloy, by incorporating 0.05 to 0.7%, by weight of Ag into a ceramic dielectric layer, the equivalent series resistance...
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4701279 |
Anisotropically electroconductive adhesives
An anisotropically electroconductive adhesive which is solid at room temperature, preferably, in the form of a film is prepared by dispersing conductive particles such as metal particles and the...
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4699888 |
Die/attach composition
A silver-glass composition for use in attaching a semiconductor support and a method for making the attachment are disclosed. The glass component of the composition is a low melting point glass...
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4699763 |
Circuit breaker contact containing silver and graphite fibers
An electrical contact material characterized by a pressed and sintered powder of silver composite with about 5 weight percent of graphite fibers.
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4696764 |
Electrically conductive adhesive composition
An electrically conductive adhesive composition which provides electric conductivity between facing electrodes but maintains electric insulation in the lateral direction across the facing...
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4695404 |
Hyperconductive filled polymers
This invention is directed to a polymeric composition comprising a polymeric binder and silver particles and having a volume electrical resistivity of 0.0001 ohm-cm or less.
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4695403 |
Thick film conductor composition
A thick film conductor composition for a ceramic wiring substrate comprises an inorganic ingredient mainly composed of a copper oxide powder added with a metal capable of forming a homogeneous...
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4692272 |
Thermally stable adhesive comprising soluble polyimide resin and epoxy resin
A novel adhesive exhibiting low outgassing upon exposure to high temperatures is disclosed. The instant adhesive comprises: (a) a soluble polyimide resin, (b) a solvent for said polyimide resin,...
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4689196 |
Silver-tungsten carbide-graphite electrical contact
An electrical contact comprises 5 to 20 weight percent tungsten carbide, 0.5 to 3 weight percent graphite, balance silver. The contact has low erosion rate, low contact resistance, and anti-welding...
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4687597 |
Copper conductor compositions
A fritless copper conductor composition suitable for overprinting on copper consisting essentially of (a) 10-50% wt. finely divided copper particles, (b) 90-50% wt. coarse copper particles, (c)...
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4680138 |
Silver sensing material for use on film
The concentration of conductive metal in a paint composition is reduced to the range of 20-30% by weight by the addition of Toluene to Butyl Acetate at a weight ratio thereto of approximately 1:3...
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4680141 |
Solder composition
A test assembly for testing a high density circuit or a test board, which comprises a test head containing a mirror image circuit of the circuit to be tested on the test board, a plurality of test...
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4678716 |
Electromagnetic shielding
Aluminum silicon alloys are used as cores for highly conductive metal coated particles to be incorporated in resins for use as electromagnetic interference shielding. High temperature processing...
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4678863 |
Corrosion resistant conductive elastomers
A corrosion resistant resilient electrically conductive gasket is comprised of a metal-containing conductive elastomer which has had any exposed metal coated with a protective conductive coating....
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4675570 |
Tungsten-iridium impregnated cathode
Porous agglomerates are made from pure tungsten by sintering fine particles together and mechanically breaking down the mass to form some agglomerates considerably larger than the particles. These...
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4675091 |
Co-sputtered thermionic cathodes and fabrication thereof
A thermionic cathode fabricated by cosputtering alkaline earth oxide and al powders under temperature and pressure conditions that ensure a metal particle size in a preferred range.
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4670188 |
Electrically conductive high molecular resin composition for electrodeposition coating
An electrically conductive composition for electrodeposition coating comprises (A) a pigment and at least one cationic high molecular resin and (B) electrically conductive ultra-fine particles...
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4667401 |
Method of making an electronic device using an uniaxial conductive adhesive
An electronic device made by the method of connecting a circuit member (18) to a substrate (12) wherein the method includes the steps of applying an adhesive (22) including a resin having a twenty...
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4668957 |
Amorphous glass matrix containing aligned microscopically thin metal conductors
The invention comprises a solid material that is an electrical conductor in a single direction which comprises an amorphous glass matrix containing a plurality of microscopically thin metal...
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4657699 |
Resistor compositions
The invention is directed to a thick film resistor composition for firing in a low oxygen-containing atmosphere comprising finely divided particles of (a) a semiconductive material consisting...
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4654078 |
Method for recovery of precious metals from difficult ores with copper-ammonium thiosulfate
Precious metals such as gold and silver are recovered from difficult-to-treat ores, especially those containing manganese and/or copper, by lixiviating the ores using copper-ammonium thiosulfate in...
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4652398 |
Rapid curing, thermally stable adhesive composition comprising epoxy resin, polyimide, reactive solvent, and crosslinker
A novel adhesive exhibiting low outgassing upon exposure to high temperatures is disclosed. The instant adhesive comprises: (a) an epoxy resin, (b) a soluble polyimide resin, (c) a reactive...
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4652465 |
Process for the production of a silver coated copper powder and conductive coating composition
A process for producing a silver coated copper powder, characterized in that a metal silver is precipitated on the surface of a metal copper powder by means of a silver complex solution comprising...
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4651126 |
Electrical resistor material, resistor made therefrom and method of making the same
An electrical resistor of resistivity of less than about 600 ohms per square and with a temperature coefficient of resistance within the range of ±200 ppm/°C. comprises an insulating substrate,...
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4647402 |
Electro-optic display device and a method of producing the same
An electro-optic display device in which a conductive paste is disposed between opposed electrodes is characterized in that said conductive paste contains silane coupling agents. A process for...
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