PHOTOCURABLE THERMOSETTING RESIN COMPOSITION, DRY FILM AND CURED PRODUCT OF THE COMPOSITION, AND PRINTED WIRING BOARD USING THE SAME

PROBLEM TO BE SOLVED: To provide a photocurable thermosetting resin composition capable of preventing disconnection in a fine pitch circuit caused by coarse particles of an insoluble component, and to provide a dry film and a cured product of the composition, and a printed wiring board having a cure...

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Bibliographische Detailangaben
Hauptverfasser:	SHIINA MOMOKO, ARIMA MASAO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY CINEMATOGRAPHY COMPOSITIONS BASED THEREON ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROGRAPHY HOLOGRAPHY MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MATERIALS THEREFOR METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS ORIGINALS THEREFOR PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS PRINTED CIRCUITS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a photocurable thermosetting resin composition capable of preventing disconnection in a fine pitch circuit caused by coarse particles of an insoluble component, and to provide a dry film and a cured product of the composition, and a printed wiring board having a cured coating such as a solder resist by using the composition.SOLUTION: An alkali-developable photocurable thermosetting resin composition comprises: (A) an epoxy resin; (B) a carboxyl group-containing resin; and (C) photopolymerization initiator. The epoxy resin (A) comprises a mixture of (A-1) a bifunctional biphenyl epoxy resin and (A-2) a biphenol novolac epoxy resin having a softening point of 40 to 100°C and an epoxy equivalent of 180 to 300, or a biphenol novolac epoxy resin and a bisphenol-A novolac epoxy resin. Proportions of (A-1) and (A-2) satisfy (A-1)