| 摘要 |
A method for manufacturing a printed wiring board, in which filled vias with a reduction in faulty connections are formed, and providing such a printed wiring board. After an electroless plated film is formed on an inner wall of a via opening, electrolytic plating is performed on insulative resin base material; the via opening is filled with plating metal and a filled via is formed. Therefore, during electrolytic plating, a plating metal is deposited from electroless plated film on the side wall of the via opening as well as from the bottom of the via opening. As a result, the via opening may be completely filled through electrolytic plating, forming a filled via with a reduction in faulty connections.
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