| 摘要 |
PROBLEM TO BE SOLVED: To provide a coil component employed as a main component of a common mode choke coil or a transformer in which excellent common mode filter characteristics are secured while reducing a size and a profile, and to provide its manufacturing method. SOLUTION: A common mode choke coil 1 has such a structure that an insulating film 7a, a coil conductor 9, an insulating film 7b, a coil conductor 11, and an insulating film 7c are laid in layers in this order between magnetic substrates 3 and 5 arranged oppositely. The coil conductor 9 has a protruding upper part, the insulating film 7b is formed to copy the upper shape of the coil conductor 9, and the coil conductor 11 has a bottom recessed to copy the upper part of the insulating film 7b. COPYRIGHT: (C)2005,JPO&NCIPI
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