| 摘要 |
PURPOSE: A printed circuit board and manufacturing method thereof are provided to simplify a manufacturing process, thereby increasing a production yield. CONSTITUTION: A printed circuit board(100a) comprises an insulating layer(102), a via(110), and an intaglio pattern(112). A via hole and a trench are processed in the insulating layer. The via and the intaglio pattern are formed by plating the via hole and the trench. The internal width of the via hole is narrower than the inlet of the via hole.
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