CARRIER-PROVIDED COPPER FOIL, PRINTED WIRING BOARD, LAMINATE SHEET, ELECTRONIC EQUIPMENT, LAMINATE AND METHOD OF PRODUCING PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To provide carrier-provided copper foil having good circuit formability.SOLUTION: Carrier-provided copper foil has a carrier, an intermediate layer and a very thin copper layer, in this order, and the intermediate layer contains Ni. When the carrier is peeled from the carrier-provided copper foil, the average value of the abundance ratio of nickel oxide and nickel hydroxide in Ni, (NiO+Ni(OH))/Ni, is 5-50%, determined by XPS analysis of the surface of the carrier on the side of the intermediate layer.