US 12,217,892 B2
Coil component
Masayuki Oishi, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Sep. 28, 2021, as Appl. No. 17/488,025.
Claims priority of application No. 2020-169776 (JP), filed on Oct. 7, 2020.
Prior Publication US 2022/0108822 A1, Apr. 7, 2022
Int. Cl. H01F 5/00 (2006.01); H01F 17/00 (2006.01); H01F 27/28 (2006.01); H01F 41/04 (2006.01)
CPC H01F 17/0013 (2013.01) [H01F 27/2823 (2013.01); H01F 41/041 (2013.01); H01F 2017/0066 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coil component comprising:
a base body including a plurality of magnetic layers laminated in a first direction; and
a coil, disposed in the base body, and including a plurality of coil wires laminated in the first direction,
the coil wires extending along a plane orthogonal to the first direction,
each of the coil wires including a first coil conductor layer and a second coil conductor layer laminated in the first direction,
specific resistance of the first coil conductor layer being smaller than specific resistance of the second coil conductor layer, and
in a cross section orthogonal to an extending direction of each of the coil wires, the second coil conductor layer being adjacent to one side of the first coil conductor layer in the first direction, and a cavity portion being disposed between the first coil conductor layer and one of the magnetic layers adjacent to another side of the first coil conductor layer in the first direction.