| 摘要 |
PROBLEM TO BE SOLVED: To provide a choke coil with less waste of materials and less variations of characteristics and to provide its manufacturing method. SOLUTION: The choke coil is provided with a columnar part 1 and a flange 3 having a flat part 4, a conductive layer in a helical shape is formed by laser beam irradiation on the surface of a base material 7 composed of an oxide magnetic material or an oxide dielectric, the conductive layer is connected to a cathode, and electroplating is executed. Thus, a metal is selectively deposited on the surface of the conductive layer, a helical conductor layer 2 is formed, the terminal of the helical conductor layer 2 is connected to a conductor film 5 formed at the flat part 4 of the flange 3 and thus a surface mounted terminal is attained. COPYRIGHT: (C)2005,JPO&NCIPI
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