PRINTED-WIRING BOARD SUBSTRATE, PRINTED-WIRING BOARD, AND METHOD FOR PRODUCING PRINTED-WIRING BOARD SUBSTRATE

摘要

A printed-wiring board substrate according to one aspect of the present invention is provided with a base film and a metal layer disposed on at least one surface of the base film, and has a nitrogen abundance of 1-10 atomic% per unit area as determined on the basis of the peak area of N1s spectrum in XPS analysis performed on the base film surface that is exposed following the removal of the metal layer by etching using an acidic solution.