| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printed wiring board which reduces the mounting hours of a coil component, the cost, and the thickness of a printed board. <P>SOLUTION: A spiral shaped coil pattern is formed on at least one surface of a printed board. An outer end of the coil pattern connects with one terminal on the printed board, and an internal end of the coil pattern is led out to the other surface of the printed board through a conductive part and proceeds from the conductive part to span a coil pattern by a connection pattern. Then, the internal end is led out again to the one surface of the printed board through a conductive part to connect with the other terminal. A magnetic material is embedded in the printed board to face the coil pattern. <P>COPYRIGHT: (C)2013,JPO&INPIT |
