US 12,308,812 B2
Multilayer electronic component
Takuya Sato, Tokyo (JP); and Seisuke Mochizuka, Tokyo (JP)
Assigned to TDK CORPORATION, Tokyo (JP)
Filed by TDK CORPORATION, Tokyo (JP)
Filed on Mar. 7, 2022, as Appl. No. 17/688,067.
Claims priority of application No. 2021-039650 (JP), filed on Mar. 11, 2021.
Prior Publication US 2022/0294409 A1, Sep. 15, 2022
Int. Cl. H03H 7/01 (2006.01); H01F 17/00 (2006.01); H03H 1/00 (2006.01)
CPC H03H 7/0115 (2013.01) [H01F 17/0013 (2013.01); H01F 2017/002 (2013.01); H01F 2017/0026 (2013.01); H03H 2001/0085 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A multilayer electronic component comprising:
a stack including a plurality of dielectric layers stacked together;
a first inductor forming section and a second inductor forming section that are integrated with the stack; and
a connection conductor layer that connects the first inductor forming section and the second inductor forming section inside the stack, wherein:
each of the first and second inductor forming sections includes an inductor conductor layer, a plurality of first through hole lines, and a plurality of second through hole lines;
each of the first through hole lines is formed by connecting two or more first through holes in series;
each of the second through hole lines is formed by connecting two or more second through holes in series;
a number of first through hole lines and a number of second through hole lines are the same;
in each of the first and second inductor forming sections, the plurality of first through hole lines are arranged in one direction orthogonal to a stacking direction of the dielectric layers, and the plurality of second through hole lines are arranged in another direction orthogonal to the stacking direction of the dielectric layers;
the inductor conductor layer has a wide end and a narrow end located at opposite ends in a longitudinal direction of the inductor conductor layer;
the inductor conductor layer includes a wide portion including the wide end and a narrow portion including the narrow end;
a dimension of the narrow portion in a transverse direction of the inductor conductor layer is smaller than a dimension of the wide portion in the transverse direction of the inductor conductor layer;
the wide portion of the inductor conductor layer of the first inductor forming section and the narrow portion of the inductor conductor layer of the second inductor forming section adjoin at a predetermined distance;
the narrow portion of the inductor conductor layer of the first inductor forming section and the wide portion of the inductor conductor layer of the second inductor forming section adjoin at a predetermined distance;
in each of the first and second inductor forming sections, the plurality of first through hole lines are connected to one of the wide and narrow portions, and the plurality of second through hole lines are connected to the other of the wide and narrow portions; and
the connection conductor layer connects a plurality of portions of the plurality of second through hole lines of the first inductor forming section away from the inductor conductor layer to a plurality of portions of the plurality of second through hole lines of the second inductor forming section away from the inductor conductor layer.