ROUGHENED COPPER FOIL, METHOD FOR PRODUCING SAME, COPPER CLAD LAMINATED BOARD, AND PRINTED CIRCUIT BOARD

Provided is a roughened copper foil which has excellent properties in forming a fine patterned-circuit and good transmission properties in a high-frequency range and show high adhesiveness to a resin base and good chemical resistance. A surface-roughened copper foil, which is obtained by roughening...

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Bibliographische Detailangaben
Hauptverfasser:	UNO TAKEO, FUJISAWA SATOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES 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 MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY PERFORMING OPERATIONS PRINTED CIRCUITS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PUNCHING METAL SPRAYING OR ATOMISING IN GENERAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	Provided is a roughened copper foil which has excellent properties in forming a fine patterned-circuit and good transmission properties in a high-frequency range and show high adhesiveness to a resin base and good chemical resistance. A surface-roughened copper foil, which is obtained by roughening at least one face of a base copper foil (untreated copper foil) so as to increase the surface roughness (Rz) thereof, relative to the surface roughness (Rz) of said base copper foil, by 0.05-0.3 μm and has a roughened surface with a surface roughness (Rz) after roughening of 1.1 μm or less, wherein said roughened surface comprises roughed grains in a sharp-pointed convex shape which have a width of 0.3-0.8 μm, a height of 0.4-1.8 μm and an aspect ratio [height/width] of 1.2-3.5.