Process for producing printed wiring board

摘要

In an additive process for producing printed wiring boards, by using a developer (103) comprising a chlorine-free organic solvent and an alkaline aqueous solution and as a resist material (101) a copolymer of methacrylic acid and methyl methacrylate or the like, the production steps are simplified even if a substrate having a large area is used, and abolishment of chlorine-containing organic solvent as a developer becomes possible.