| 摘要 |
<p>A printing board having a conductor material filled in a volute recess is superposed on an insulation board. The conductor material is transferred to the insulation board and burnt together with the insulation board, a coil pattern portion being formed on the same plane of the insulation board. The coil pattern portion is provided with a nonmagnetic portion made of nonmagnetic material. The inductor part having these has its attenuation characteristic improved in high frequency band and can be reduced in height by thinning the magnetic portion.</p> |
