US 12,230,433 B2
Coil component and method of manufacturing the same
Nobuyuki Ojima, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Sep. 13, 2021, as Appl. No. 17/473,918.
Claims priority of application No. 2020-153931 (JP), filed on Sep. 14, 2020.
Prior Publication US 2022/0084739 A1, Mar. 17, 2022
Int. Cl. H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 41/066 (2016.01); H01F 41/076 (2016.01); H01F 5/06 (2006.01)
CPC H01F 27/2828 (2013.01) [H01F 27/292 (2013.01); H01F 41/066 (2016.01); H01F 41/076 (2016.01); H01F 5/06 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A coil component comprising:
a core that includes a winding-core portion and a flange portion that is on an end surface of the winding-core portion;
a wire that is wound around the winding-core portion; and
an outer electrode that is on a bottom surface of the flange portion, to which an end portion of the wire is connected, and that includes a first metal layer that defines a surface of the outer electrode,
wherein
at least a part of the end portion of the wire is embedded in the first metal layer,
the wire includes a conductive portion and a covering portion that covers the conductive portion,
the covering portion includes polyurethane or polyamide,
carbon element is present in the first metal layer, and the carbon element is a part of a resin, and
the resin includes rosin or a modified rosin.