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4647348 |
Method for production of film-coated silicon semiconductor electrode
On a silicon semiconductor or a silicon semiconductor having a coating of a noble metal, a polymer film is deposited by immersing the silicon semiconductor or the silicon semiconductor with the...
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4643843 |
Preparation for improving the reliability of electrical connections
In order to maintain the long term reliability of an electrical connection subjected to difficult environmental conditions, such as in the engine compartment of a motor vehicle, a paste-like...
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4639396 |
Thermoplastics-metal fiber threads
An extrusion drawn elongated thread-like filament comprising a minor proportion of elongated metal fibers embedded in a major proportion of thermoplastic polymer wherein the melting temperature of...
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4636332 |
Thick film conductor composition
Thick film conductor compositions comprising an admixture of finely divided particles of A. noble metal, noble metal alloy or mixtures thereof, and B. inorganic binder comprising a glass...
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4636254 |
Silver-glass paste for attachment of silicon die to ceramic substrate
Silver flake and lead borate glass frit are suspended in a liquid organic vehicle of resin and solvent. The silver flakes are present in two different size ranges. The plate is applied between the...
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4623389 |
Electroconductive silver composition
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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4622269 |
Electrical contact and process for making the same
An electrical contact formed of a mixture of finely divided electrically conductive metal doped with graphite or cadmium oxide. A thin coating of the electrically conductive metal is disposed upon...
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4610810 |
Radiation curable resin, paint or ink vehicle composition comprising said resin and magnetic recording medium or resistor element using said resin
A resin having a monomer unit structure represented by the formula: ##STR1## can be cured by an actinic irradiation such as electron beam, ultraviolet ray or infrared ray to give a heat-resistant,...
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4604230 |
Thermally stable adhesive
A novel adhesive exhibiting low outgassing upon exposure to high temperature is disclosed. The instant adhesive comprises: (a) a soluble polyimide resin, (b) a solvent for said polyimide resin, (c)...
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4603007 |
Paste for forming a thick conductive film
A paste for forming a thick electrically conductive film, which may, for example, be used to produce a touch panel for an electric appliance, contains 40 to 55% by weight of lead borosilicate glass...
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4598167 |
Multilayered ceramic circuit board
A multilayered ceramic circuit board, formed by sintering together a plurality of unit ceramic circuit boards, wherein each unit ceramic circuit board includes a ceramic layer, a patterned...
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4595605 |
Solderable conductive compositions that are capable of being soldered by non silver-bearing solder and that can be bonded directly to substrates and which are flexible
This invention provides conductive compositions that are solderable and flexible and that can be bonded directly to substrates. These compositions are made up of a combination of silver exclusively...
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4595606 |
Solderable conductive compositions having high adhesive strength
This invention provides conductive compositions that are directly solderable and that can be bonded directly to substrates. The compositions are made of silver exclusively in the form of flake and...
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4595604 |
Conductive compositions that are directly solderable and flexible and that can be bonded directly to substrates
This invention provides conductive compositions that are solderable and flexible and that can be bonded directly to substrates. These compositions are made up of a combination of silver exclusively...
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4592961 |
Particle filled flexible coating composition of aromatic polyester and vinylidene chloride copolymer
A coating composition having surprisingly superior physical properties, particularly when highly-filled with small particles and bonded to a flexible film of a polymeric substrate. The composition...
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4592862 |
Conductive resin composition and information record
A conductive resin composition comprising a specific type of graft polymer of vinyl chloride and a vinyl chloride/acrylic ester copolymer, and a conductive powder used in an amount of from 10 to 30...
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4588520 |
Powder pressed thermoelectric materials and method of making same
New and improved compacted or powder pressed materials for thermoelectric applications include a body formed from compacted powder material including at least bismuth and tellurium and at least one...
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4581158 |
Conductive thermosetting compositions and process for using same
This invention is directed to a process and a novel composition for forming a conductive thermoset material which comprises admixing (a) particles of a polymeric material swellable at its...
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4579679 |
Electroactive polymers
Tractable doped electroactive polymers, comprising recurring units of a fused nitrogen-containing unsaturated heterocyclic ring system, are fabricated from the virgin polymer by contacting the...
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4579882 |
Shielding material of electromagnetic waves
The shielding material of electromagnetic waves of the invention is formed f a polymeric material as the matrix and an inorganic powder, e.g. mica flakes, metallized on the surface of the particles...
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4578215 |
Electrical conductivity-enhancing and protecting material
A material for enhancing the conductivity and protecting electrical contacts, the material having two basic components. The first basic component normally serves to limit corrosion between the...
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4574056 |
Die-bonding electroconductive paste
A die-bonding electroconductive paste containing at least one element having the same valence as the valence of a semiconductor element to be die-bonded or a compound of said element and a reducing...
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4574055 |
Resistor compositions
A resistor composition comprising conductive particles, a glass frit and a vehicle in which RuO 2 particles coated with a polynary oxide of Bi and/or Pb and Ru are employed and, by using the...
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4568592 |
Anisotropically electroconductive film adhesive
A film adhesive of a thermoplastic or thermosetting polymeric insulative material can be imparted with anisotropic electroconductivity by dispersing electroconductive fibrils of specified...
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4566991 |
Process for preparing conducting polymeric compositions
Process for reducing the resistivity of polymers, by forming a composition comprised of such polymers and one or more metal salts, and treating such a composition with a reagent to form the...
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4566990 |
Synergistic effect of metal flake and metal or metal coated fiber on EMI shielding effectiveness of thermoplastics
Conductive thermoplastic having high EMI shielding effectiveness comprise a thermoplastic condensation polymer and incorporated therein a synergistic combination of metal flake and conductive metal...
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4566992 |
Solutions for the fusion of one metal to another
A soluion for the fusion of a second metal to a first metal which comprises 0.10 to 10% of the second metal in a dissociable form; and a solvent chosen from the group comprising water, an organic...
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4565590 |
Silver and metal oxides electrical contact material and method for making electrical contacts
The invention relates to a material for electrical contacts, in particular for contact studs in low-voltage switchgear. The material consists of silver, tin oxide and other additives. A material is...
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4564563 |
Solderable conductor
A solderable electrically conductive composition includes metallic silver particles embedded in a matrix formed from acrylic, carboxylated vinyl and epoxy. The composition is formed by dissolving...
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4561996 |
Electrical resistor and method of making the same
Disclosed is a method for making glass bonded metal oxide electric resistors involving including in the mixture a refractory oxide for providing configuration stability during firing.
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4559165 |
Transparent conducting layer
The invention relates to a transparent display material having a conducting layer of a tin oxide and/or indium oxide composition which withstands electrochemical attacks without the need for...
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4557860 |
Solventless, polyimide-modified epoxy composition
Adhesive compositions are disclosed which comprise: (a) an epoxy resin; (b) a soluble polyimide resin; and (c) a monoepoxy diluent. Such compositions are curable by using conventional epoxy curing...
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4553928 |
Switching device for photoflash unit
An improved multiple flashlamp array is disclosed having a plurality of low voltage type lamps fired individually and in sequence by means of a plurality of static solid switching devices capable...
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4552691 |
Electrically conductive pastes
An electrically conductive paste is disclosed, which comprises (i) 60 to 90 wt % of metal fine powders comprising a silver fine powder, a composite fine powder of silver and copper and optionally...
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4552690 |
Electrically conductive resin composition
An electrically conductive resin composition comprising 15-35 parts by weight of a cyanate ester compound and 65-85 parts by weight of an electrically conductive powder selected from the group...
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4547312 |
Electrically conductive elastomers from emulsions
A composition which provides an elastomeric, electrically conductive product upon removal of the water at ambient conditions is described. The composition comprises an emulsion (A) having a...
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4546010 |
Process for producing an electrically conductive layer on the surface of a solid-body electrolyte, and electrically conductive layer
An electrically conductive layer on a solid-body electrolyte (1) is produced by swelling and impregnating an organic ion exchange material (2) with a metal salt solution, drying, converting the...
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4545926 |
Conductive polymer compositions and devices
Conductive polymer compositions comprises a polymeric material having dispersed therein (a) conductive particles composed of a highly conductive material and (b) a particulate filler. The...
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4540604 |
Thick film conductor compositions
A copper-containing thick film conductor composition comprising a mixture of finely divided particles of (a) a conductive material containing copper metal, (b) inorganic binder and (c) 0.2-5% wt....
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4535012 |
Fast curing solderable conductor
A solderable electrically conductive composition includes metallic silver particles embedded in a matrix of carboxylated vinyl and epoxy. The composition is formed by dissolving the vinyl in a...
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4532186 |
Circuit substrate with resistance layer and process for producing the same
A circuit substrate with a resistance layer and a process for producing the same are disclosed. The circuit substrate comprises an electrically insulating layer, a resistance layer bonded to at...
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4532075 |
Thick film conductor composition
A thick film conductor composition comprising an admixture of finely divided particles of noble metal and inorganic binder dispersed in organic medium in which the inorganic binder consists...
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4519941 |
Metal-filled polyimide/polyepoxide blends of improved electrical conductivity
Metal-filled polyimide/polyepoxide blends, characterized by their improved electrical conductivity after curing over blends containing no polyepoxide, comprise carbinol-containing polyimides,...
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4518524 |
Silver coating composition for use in electronic applications and the like
A new silver dispersion coating composition containing a special additional pigment material useful as an electrically conductive coating on electronic equipment or the like. The new coating...
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4517545 |
Thick film temperature sensitive device and method and material for making the same
A thick film temperature sensitive device and method of making the same, comprising the steps of applying to the surface of a substrate and firing a resistance material comprising a mixture of...
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4517252 |
Pre-alloyed thick film conductor for use with aluminum wire bonding and method of bonding
A thick film conductor material comprising metal particles containing both gold and at least one additional element prealloyed into a single particle. The additional element may preferably be Pd...
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4511492 |
Electrically conducting aromatic azopolymers and method of preparation
Aromatic azopolymers can be prepared in generally high yield by oxidatively coupling aromatic diamines using perborate salts. Glacial acetic acid is an effective solvent, and the presence or boric...
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4503090 |
Thick film resistor circuits
A method of forming thick film resistor circuits whereby a non-hole metal, such as copper, requiring a reducing atmosphere is included with resistor material requiring an oxidizing atmosphere. A...
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4498727 |
Electric connecting means
Electric connecting means, such as connectors having a contact element which is coated with a considerably thinner (0.1-2 μm) noble metal layer than is customary and which is coated with a...
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4497728 |
Conductive pyrolytic product and composition using same
A conductive pyrolytic product obtained by thermally treating specific types of heat-resistant polymers including polyamide-imide, an aromatic polymer having a heterocyclic ring of a specific type...
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