US 11,961,652 B2
Coil component
Hitoshi Ohkubo, Tokyo (JP); Masazumi Arata, Tokyo (JP); Kenichi Kawabata, Tokyo (JP); and Atsushi Sato, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Oct. 24, 2019, as Appl. No. 16/662,220.
Claims priority of application No. 2018-206490 (JP), filed on Nov. 1, 2018; and application No. 2019-133002 (JP), filed on Jul. 18, 2019.
Prior Publication US 2020/0143979 A1, May 7, 2020
Int. Cl. H01F 27/36 (2006.01); H01F 1/20 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 27/32 (2006.01)
CPC H01F 27/2885 (2013.01) [H01F 1/20 (2013.01); H01F 27/29 (2013.01); H01F 27/32 (2013.01); H01F 27/361 (2020.08)] 9 Claims
OG exemplary drawing
 
1. A coil component comprising:
an element body including binder powder in which metal magnetic powder is bound by binder resin and a coil embedded in the binder powder and having a pair of main surfaces facing each other in an axial direction of the coil and arising unevenness;
an insulating layer covering one of the main surfaces and four side surfaces of the element body and smoothening the unevenness;
a shield layer provided on the insulating layer;
a pair of ground electrode terminals; and
a pair of external electrode terminals on the other main surface of the element body,
wherein a thickness of an end part of the shield layer is equal to that of the other end part of the shield layer,
the element body has a rectangular parallelepiped outer shape,
the insulating layer does not cover the other main surface of the element body,
in a bottom plan view, each of the external electrode terminals is separated from an outer edge of the other main surface of the element body, and
the shield layer has a multi-layer structure, and a part of each ground electrode terminal of the pair of ground electrode terminals is sandwiched between layers of the multi-layer structure of the shield layer.