| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printed wiring board which has fine-wiring wirability and insulation reliability. Ž<P>SOLUTION: The printed wiring board includes wiring and an insulating material and has substantially no electroless plating catalyst between wiring lines of the printed wiring board, and is characterized in that the ratio X/Y of a wiring thickness X to an insulating layer thickness Y is 0.01 to 0.5. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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