公开(公告)号：US20220310316A1

公开(公告)日：2022-09-29

申请号：US17705969

申请日：2022-03-28

Applicant: TDK CORPORATION

Inventor： Yuya OSHIMA ,  Kenji KOMORITA ,  Masayuki SUZUKI ,  Yuudai KATOU ,  Takeru SASAKI ,  Shigeshi OSAWA ,  Takehiro ISHII ,  Kouichi KAKUDA ,  Yukio TAKAHASHI ,  Tsubasa OZAWA ,  Makoto YOSHINO

IPC: H01F27/29 ,  H01F17/00

Abstract: In the multi-layer coil component, the hole portion is provided in the vicinity of the side surface of the element body, and the distance from the tip position of the external electrode to the hole portion is shorter than the distance from the tip position of the external electrode to the coil. Therefore, when a crack is generated starting from the tip position of the external electrode on the mounting surface, the crack progress toward the hole portion located at a distance closer than the coil. Therefore, in the multi-layer coil component, splitting of the coil due to the crack can be prevented.