US 12,136,512 B2
Coil component and method of manufacturing the same
Keiichi Ishida, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Mar. 12, 2021, as Appl. No. 17/199,922.
Claims priority of application No. 2020-059521 (JP), filed on Mar. 30, 2020.
Prior Publication US 2021/0304955 A1, Sep. 30, 2021
Int. Cl. H01F 27/30 (2006.01); H01F 17/02 (2006.01); H01F 27/28 (2006.01); H01F 27/32 (2006.01); H01F 41/02 (2006.01); H01F 41/12 (2006.01)
CPC H01F 27/32 (2013.01) [H01F 17/02 (2013.01); H01F 27/2823 (2013.01); H01F 41/0246 (2013.01); H01F 41/12 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A coil component comprising:
a body that includes
a coil comprising a winding portion which a substantially rectangular wire covered with an insulating film is wound, and an extended portion that extends to the winding portion,
a magnetic-body section that contains a magnetic-body particle and a resin, and
a first principal surface and a second principal surface that faces the first principal surface, and at the substantially rectangular wire, an average thickness of a portion of the insulating film that covers a first surface of the winding portion facing the first principal surface and extending in a direction orthogonal to a winding axis of the coil of the winding portion is larger than an average thickness of a portion of the insulating film that covers a second surface of the winding portion facing the second principal surface and extending in the direction orthogonal to the winding axis, and is larger than average thicknesses of portions of the insulating film that cover other surfaces of the winding portion, the other surfaces being orthogonal to the first surface; and
an external electrode that is electrically connected to an exposed surface of an extended portion of the coil and that is disposed at a surface of the body, the exposed surface being exposed at the surface of the body.