US 12,374,484 B2
High-frequency inductor component
Tsuyoshi Takamatsu, Nagaokakyo (JP); Keiichi Yoshinaka, Nagaokakyo (JP); and Minoru Matsunaga, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Sep. 16, 2021, as Appl. No. 17/477,480.
Claims priority of application No. 2020-172763 (JP), filed on Oct. 13, 2020.
Prior Publication US 2022/0115171 A1, Apr. 14, 2022
Int. Cl. H01F 5/00 (2006.01); H01F 17/00 (2006.01); H01F 17/04 (2006.01); H01F 27/28 (2006.01); H01F 27/32 (2006.01); H01F 41/04 (2006.01)
CPC H01F 17/0013 (2013.01) [H01F 17/04 (2013.01); H01F 27/2804 (2013.01); H01F 27/32 (2013.01); H01F 2017/048 (2013.01); H01F 41/041 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A high-frequency inductor component comprising:
an element body;
a coil disposed within the element body and having a helical structure in which the coil is wound along an axial direction; and
a first external electrode and a second external electrode that are disposed on the element body and electrically connected to the coil,
the element body including a first end surface and a second end surface that face each other and a bottom surface connected between the first end surface and the second end surface,
the first external electrode extending from the first end surface to the bottom surface,
the second external electrode extending from the second end surface to the bottom surface,
the element body including an insulating layer made of a non-magnetic material, and an internal magnetic member and an external magnetic member that contain a magnetic material,
the internal magnetic member being at a position where the coil is present in the axial direction and having a shape with at least one concave recess that corresponds to an inner peripheral surface of the coil,
the external magnetic member being outside of the coil in the axial direction,
the inductor component having an inductance value of 100 nH or less.