公开(公告)号：US20240170202A1

公开(公告)日：2024-05-23

申请号：US18549264

申请日：2022-02-22

Applicant: TDK Corporation

Inventor： Yuuichi KAWAGUCHI ,  Naoaki FUJII ,  Masanori SUZUKI ,  Takuya TAKEUCHI ,  Tomonaga NISHIKAWA ,  Hiroki SHIBA

IPC: H01F27/29 ,  H01F17/04

CPC classification number: H01F27/292 ,  H01F17/04

Abstract: To improve a coil component having a structure in which a coil part is embedded in a magnetic member. A coil component includes a coil part embedded in the magnetic members and terminal electrodes each made of a conductive paste. Conductor layers constituting the coil part respectively have coil conductor patterns and electrode patterns exposed from a mounting surface. The terminal electrode has an area provided at a position covering the electrode patterns on the mounting surface and areas provided at positions not covering the electrode patterns on the mounting surface. A part of the area constitutes a protruding part protruding in the x-direction. The terminal electrode thus has the protruding part, thereby making misalignment of mounting position in the z-direction less likely to occur at the time of mounting.

公开(公告)号：US20240062948A1

公开(公告)日：2024-02-22

申请号：US18366293

申请日：2023-08-07

Applicant: TDK Corporation

Inventor： Tomonaga NISHIKAWA ,  Ichiro YAGINUMA ,  Takemichi HOSHI ,  Mitsunori HIRAOKA ,  Hiroki SHIBA

IPC: H01F27/29 ,  H01F27/24

CPC classification number: H01F27/292 ,  H01F27/24

Abstract: Disclosed herein is a coil component that includes, first and second magnetic element bodies, first and second coil conductors embedded respectively in the first and second magnetic element bodies, first and second terminal electrodes exposed from the first magnetic element body and connected respectively to one end and other end of the first coil conductor, third and fourth terminal electrodes exposed from the second magnetic element body and connected respectively to one end and other end of the second coil conductor, and a low-permeability layer provided between the first and second magnetic element bodies and being lower in permeability than the first and second magnetic element bodies.