METHOD FOR PRODUCING PREPREG, PREPREG, METAL-CLAD LAMINATE, AND PRINTED WIRING BOARD

PROBLEM TO BE SOLVED: To provide a method for producing a prepreg which has a small residual strain and a small difference in a resin deposition amount between one side of a fiber base-material and the other side thereof, and a prepreg obtained by the production method, and a metal-clad laminate and...

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Bibliographische Detailangaben
Hauptverfasser:	HANAWA AKINORI, SAITO TAKESHI, MATSUZAKI TAKASHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRINTED CIRCUITS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a prepreg which has a small residual strain and a small difference in a resin deposition amount between one side of a fiber base-material and the other side thereof, and a prepreg obtained by the production method, and a metal-clad laminate and a printed wiring board using the prepreg, excellent in surface smoothness, thickness accuracy and warpage properties. SOLUTION: The method for producing a prepreg includes: a coating process of impregnating the fiber base-material with a thermosetting resin varnish; and a drying process of evaporating a solvent of the thermosetting resin varnish with which the fiber base-material is impregnated and half curing the resin. The drying process is carried out in a horizontal drying oven with an inlet temperature of the drying oven being equal to or lower than the softening point of the resin. COPYRIGHT: (C)2011,JPO&INPIT