| 摘要 |
A method for manufacturing a wiring board, includes: forming an insulating resin layer on a conductive layer; forming a metal chloride or a metal sulfate on the insulating resin layer; forming a protective layer on the metal chloride or the metal sulfate; forming an exposed portion in the insulating resin layer, the metal chloride or the metal sulfate, and the protective layer so as to at least partially expose the conductive layer; removing residues in the exposed portion; removing the protective layer; and forming a wiring on the insulating resin layer in which the protective layer has been removed.
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