US 12,355,416 B2
Coil component, filter circuit including the coil component, and electronic device
Atsushi Toujo, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Kyoto (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Feb. 15, 2023, as Appl. No. 18/109,896.
Application 18/109,896 is a continuation of application No. PCT/JP2021/033751, filed on Sep. 14, 2021.
Claims priority of application No. 2020-167205 (JP), filed on Oct. 1, 2020.
Prior Publication US 2023/0198490 A1, Jun. 22, 2023
Int. Cl. H03H 7/01 (2006.01); H03H 1/00 (2006.01); H03H 1/02 (2006.01)
CPC H03H 7/0115 (2013.01) [H03H 1/02 (2013.01); H03H 7/1791 (2013.01); H03H 2001/0085 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic device comprising:
an integrated circuit mounted on a substrate; and
a filter circuit connected to the integrated circuit; wherein
the filter circuit includes a coil component and a capacitor;
the coil component includes:
a body including a pair of main surfaces that are opposed to each other, and four side surfaces with which the main surfaces are connected to each other;
a first coil including a first plurality of wiring patterns in the body;
a second coil including a second plurality of wiring patterns in the body;
a first electrode on a first side surface and electrically connected to one end of the first coil;
a second electrode on a second side surface opposed to the first side surface and electrically connected to one end of the second coil; and
a third electrode on a third side surface not opposed to the first side surface and electrically connected to the other end of the first coil and the other end of the second coil;
an opening of the first coil is at least partially overlapped with an opening of the second coil when viewed from a main surface direction;
the first electrode is connected to the integrated circuit;
the third electrode is grounded via the capacitor; and
the first coil has an inductance lower than that of the second coil.