COIL COMPONENT

To reduce the number of insulating substrates required while preventing contact between coil portions adjacent in the stacking direction.SOLUTION: A coil component includes a coil portion 100 formed on the surface 11 of an insulating substrate 10, a coil portion 200 formed on the surface 12 of the insulating substrate 10, a coil portion 300 formed on the surface 24 of an insulating substrate 20, a coil portion 400 formed on the surface 36 of an insulating substrate 30, connection patterns P11 to P16 formed on the surface 23 of the insulating substrate 20, and connection patterns P21 to P26 formed on the surface 35 of the insulating substrate 30. The inner peripheral end of coil portion 100 and the inner peripheral end of coil portion 200 are connected to each other through connection portions TH11 to TH16 provided so as to penetrate through the insulating substrate 10, and the connection patterns P11 to P16 and the connection patterns P21 to P26 are connected to each other through an opening 10a provided in the insulating substrate 10. Thus, the number of insulating substrates required can be reduced while contact between the coil portions is prevented.SELECTED DRAWING: Figure 1 【課題】積層方向に隣接するコイル部同士の接触を防止しつつ、必要な絶縁基板の数を削減する。【解決手段】絶縁基板１０の表面１１に形成されたコイル部１００と、絶縁基板１０の表面１２に形成されたコイル部２００と、絶縁基板２０の表面２４に形成されたコイル部３００と、絶縁基板３０の表面３６に形成されたコイル部４００と、絶縁基板２０の表面２３に形成された接続パターンＰ１１〜Ｐ１６と、絶縁基板３０の表面３５に形成された接続パターンＰ２１〜Ｐ２６とを備える。コイル部１００の内周端とコイル部２００の内周端は、絶縁基板１０を貫通して設けられた接続部ＴＨ１１〜ＴＨ１６を介して互いに接続され、接続パターンＰ１１〜Ｐ１６と接続パターンＰ２１〜Ｐ２６は、絶縁基板１０に設けられた開口部１０ａを介して互いに接続される。これにより、コイル部同士の接触を防止しつつ、必要な絶縁基板の数を削減することができる。【選択図】図１