公开(公告)号：US20220102044A1

公开(公告)日：2022-03-31

申请号：US17486264

申请日：2021-09-27

Applicant: TDK Corporation

Inventor： Takeshi OKUMURA ,  Kouji KAWAMURA ,  Hidenori TSUTSUI ,  Kenichi ICHINOSE ,  Taichi HIROSE ,  Mitsuo NATORI ,  Kyohei YAZAKI ,  Shouji SHIMADA

IPC: H01F17/00 ,  H01F27/29

Abstract: Disclosed herein is a coil component that includes a plurality of conductor layers including first, second, third, and fourth conductor layers stacked one on another in this order. First and third planar spiral coils are formed in the first and third conductor layers. A second planar spiral coil is formed in the second and fourth conductor layers. A pattern width of the second planar spiral coil formed in the second conductor layer is smaller than that of the second planar spiral coil formed in the fourth conductor layer, or a pattern width of each of the first and third planar spiral coils formed in the third conductor layer is smaller than that of each of the first and third planar spiral coils formed in the first conductor layer.