| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a multilayer board, which laminates a prepreg on an internal layer board performed a treatment for performing a reduction treatment after an oxidation treatment, heats, presses and molds the laminated material to manufacture the multilayer board, does not make a spot form on an internal layer pattern and obtains the multilayer board of a good finish from the viewpoint of visual appearance. SOLUTION: A water-soluble photosensitive resist is performed on the surface of a copper-clad laminated board and after the resist is exposed, it is subjected to developing and etching, then, the resist is peeled from the surface of the laminated board using a release agent containing a defoaming agent to form an internal layer board having an internal layer pattern on its surface and after a treatment for performing a reduction treatment after an oxidation treatment is performed on the internal layer board, a prepreg is laminated on the internal layer board and the laminated material is thermocompressed and is molded to manufacture a multilayer board. |
