CONDUCTIVE PASTE

PURPOSE:To reduce the insulating resistance between through holes, and to reduce the using amount of silver, by including a specific almost spherical form of minute particles, a copper powder, zeolite, and a thiazole genus, to a conductive paste. CONSTITUTION:(A) 20 to 60wt.% of almost spherical for...

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Bibliographische Detailangaben
Hauptverfasser:	YAMANA SHOZO, KUWASHIMA HIDEJI
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS CABLES CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CONDUCTORS CORRECTING FLUIDS DYES ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FILLING PASTES INKS INSULATORS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES PRINTED CIRCUITS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	PURPOSE:To reduce the insulating resistance between through holes, and to reduce the using amount of silver, by including a specific almost spherical form of minute particles, a copper powder, zeolite, and a thiazole genus, to a conductive paste. CONSTITUTION:(A) 20 to 60wt.% of almost spherical form of particles which consist of a plastic or an inorganic material with the particle size less than 30mum, on whose surface a nickel plating with the thickness 1 to 2mum is applied, and a silver plating with the thickness 0.5 to 1mum is applied thereover, and (B) a copper powder whose particle size is less than 20mum, are mixed at the volume ratio 10:1 to 1:5 to form a mixture. The resultant mixture (A+B), (C) zeolite, (D) 0.05 to 2.0wt.% of a thiazole genus, and (E) an organic adhesive component, and when necessary, a solvent, a minute graphite power, a corrosion depressor, and the like, are mixed to form this conductive paste.