ROUGHENED ROLLING COPPER FOIL FOR HIGH FREQUENCY CIRCUIT AND ITS PRODUCTION PROCESS

摘要

PROBLEM TO BE SOLVED: To obtain a rolling copper foil for high frequency circuit which can be used under high frequencies exceeding 1 GHz at a low manufacturing cost.;SOLUTION: A roughened rolling copper foil for high frequency circuit in which the integrated intensity (I₍₂₀₀₎) of (200) face determined by X-ray diffraction on the rolled surface of the rolling copper foil after recrystallization annealing and the integrated intensity (I_o(200)) of (200) face determined by X-ray diffraction of fine powder copper satisfy a relation I₍₂₀₀₎/I_o(200)40, arithmetic average of the rolled surface subjected to roughening by electrolytic plating (hereinafter, referred to Ra) is 0.02-0.2 μm and ten-point average (hereinafter, referred to Rz) is 0.1-1.5 μm.;COPYRIGHT: (C)2006,JPO&NCIPI