COPPER FOIL SURFACE STATE EVALUATION DEVICE, COPPER FOIL SURFACE STATE EVALUATION PROGRAM, COMPUTER READABLE RECORDING MEDIUM HAVING THE SAME RECORDED AND COPPER FOIL SURFACE STATE EVALUATION METHOD

摘要

PROBLEM TO BE SOLVED: To efficiently and accurately evaluate a surface state of a copper foil.;SOLUTION: The copper foil surface state evaluation device comprises: photographing means that photographs a mark existing beneath a transparent base material across the transparent base material, resulting from a removal of a surface-treated copper foil by etching after a surface-treated surface side having a surface treatment copper foil treated is attached to at least one face of the transparent base material; observation point-brightness graph preparation means that measures brightness for each observation point along a direction orthogonal to an extension direction of the observed mark, and prepares an observation point-brightness graph; and copper foil surface state evaluation means that evaluates visibility of the transparent base material, using a brightness curve produced from an end part of the mark through a part thereof where the mark does not exist and evaluates a surface state of the copper foil. The copper foil surface state evaluation means evaluates the visibility of the transparent base material, using a difference ΔB(ΔB=Bt-Bb) between a top average value Bt of the brightness curve produced from the end part of the mark to the part thereof where the mark does not exist and a bottom average value Bb thereof, and the evaluation device evaluates the surface state of the copper foil.;COPYRIGHT: (C)2014,JPO&INPIT