| 摘要 |
PURPOSE:To facilitate the incorporation of a coil into a printed plate by a method wherein a coil conductor having coil terminal conductors at both ends and an intermediate tap terminal conductor midway is formed on a film formed of polyester, etc. and these terminal conductors exposed at the end of the film being rolled are led out while the film is laid round a core. CONSTITUTION:A coil conductor 7 is formed by printing or evaporation on a sheet 6 of a magnetic body formed of ceramics, a polyester film, etc. containing a magnetic substande. On the occasioin, a coil terminal conductor 8 exposed on the side of the sheet 6 is provided at one end of a coil conductor 7, and a coil terminal conductor 9 exposed on the cross-sectional surface in the longitudinal direction of the sheet 6 is provided at the other end thereof. Moreover, an intermediate tap terminal conductor 10 is exposed also on the opposite side of the conductor 8. Next, the sheet 6 is laid in layers and rolled round a core 11, and then the eposed terminals 8, 9 and 10 are connected selectively to coil terminal electrode 15, respectively. By this method, an intermediate tap is provided on a chip coil. |
