COPPER FOIL WITH CARRIER, COPPER-CLAD LAMINATE, PRINTED WIRING BOARD, ELECTRONIC DEVICE, AND LAMINATE, AND METHODS FOR MANUFACTURING COPPER FOIL WITH CARRIER, COPPER-CLAD LAMINATE, AND PRINTED WIRING BOARD

摘要

PROBLEM TO BE SOLVED: To provide copper foil with carrier in which the variation in carrier peel strength between before and after heat pressing of the copper foil with carrier is well suppressed.SOLUTION: Provided is copper foil with carrier having a carrier, an intermediate layer, and an ultra-thin copper layer in this order, and in which the peel strength of the carrier after heat pressing of the copper foil with carrier under the condition of a pressure: 20 kgf/cmand 220°C for 2 hours, is 150% or less of the peel strength before the heat pressing, and the peel strength of the carrier after the heat pressing under the condition of a pressure: 20 kgf/cmand 220°C for 2 hours, is 2 N/m or more and 30 N/m or less.SELECTED DRAWING: Figure 1