US 12,260,978 B2
Inductor component
Daisuke Takahashi, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Feb. 18, 2022, as Appl. No. 17/675,768.
Claims priority of application No. 2021-027471 (JP), filed on Feb. 24, 2021.
Prior Publication US 2022/0270803 A1, Aug. 25, 2022
Int. Cl. H01F 17/00 (2006.01); H01F 27/29 (2006.01)
CPC H01F 17/0013 (2013.01) [H01F 27/292 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An inductor component comprising:
an element assembly;
a coil which is inside the element assembly and helically wound along an axis of the coil; and
a first outer electrode and a second outer electrode which are on the element assembly and are electrically connected to the coil,
wherein the element assembly includes a plurality of insulating layers which are stacked along the axis,
the coil includes a plurality of pieces of coil wiring which are stacked along the axis and via wiring which extends along the axis and connects the pieces of coil wiring adjacent in a direction of the axis,
the plurality of pieces of coil wiring are each wound along a plane, and are electrically connected in series to configure a helix,
the plurality of pieces of coil wiring includes
a first coil wiring which is located at an endmost on one side in a direction parallel to the axis and is connected to the first outer electrode, and
a second coil wiring which is located at an endmost on the other side in the direction parallel to the axis and is connected to the second outer electrode,
an area of an end surface of the via wiring on the one side in the direction parallel to the axis is smaller than an area of an end surface of the via wiring on the other side in the direction parallel to the axis, and
a thickness of the second coil wiring in the direction parallel to the axis is greater than a thickness of the first coil wiring in the direction parallel to the axis.