Taiyo Yuden Co., Ltd.

Hidekazu Teshigawara

Masanori Nagano

Hitoshi Matsuura

Takayuki Arai

Masahiro Hachiya

Shuhei Kurahashi

Hideo Machida

Naoya Honmo

[PROBLEM] To suppress the formation of an external electrode extending to an unintended part. [MEANS FOR RESOLUTION] A coil componentcomprises: a magnetic substrateincluding metal magnetic particles structured from a soft magnetic alloy that has iron as the main component; a coil conductorprovided on the magnetic substrate; a glass film, provided on a surface of the magnetic substrate, made from a low-temperature sintered glass including a filler of titanium oxide, zirconium oxide, and/or tungsten oxide; and an external electrode, provided in contact with the glass film, connected electrically to the coil conductor

Coil component and electronic device

A coil component includes: a magnetic body part and a cover part covering one side of a magnetic layer part; and a coil part embedded in the magnetic body part. The magnetic body part is comprised of the following two types of layers: (A) an oblate soft magnetic grain-containing layer, and (B) a spherical grain-containing layer, wherein layer (A) extends over the entire range of the magnetic body part except for a portion including the coil part in a direction perpendicular to an axis direction of the coil part, layer (B) adjoins layer (A) in the axis direction. The cover part is constituted by multiple layers including one or more of layer(s) (A) and one or more of layer(s) (B) and extending over the entire range of the magnetic body part in the direction perpendicular to the axis direction.

Coil component

To provide a new type of coil component capable of providing a high inductance and excellent in insulation reliability. A coil component according to one embodiment of the present invention is provided with an insulating body, a first external electrode provided on a surface of the insulating body, a second external electrode provided on a surface of the insulating body, and a coil conductor provided between the first external electrode and the second external electrode. In the coil conductor, a conductor pattern having a larger potential difference from the second external electrode is arranged farther from the second external electrode, and a conductor pattern having a larger potential difference from the first external electrode is arranged farther from the first external electrode.

Laminated coil component

To provide a new type of laminated coil component capable of providing a high inductance and excellent in insulation reliability. A laminated coil component according to one embodiment of the present invention is provided with a laminate, a first external electrode provided on a surface of the laminate, a second external electrode provided on a surface of the laminate, and a coil conductor provided between the first external electrode and the second external electrode. In the coil conductor, a conductor pattern having a larger potential difference from the second external electrode is arranged farther from the second external electrode, and a conductor pattern having a larger potential difference from the first external electrode is arranged farther from the first external electrode.

A coil component includes a magnetic body part and a coil part. The magnetic body part has first and second magnetic layers stacked together alternately in one axis direction, and cover parts covering the first and second magnetic layers from the one axis direction. The coil part has conductor patterns provided on the second magnetic layers. The magnetic body part includes: oblate soft magnetic grain-containing layers extending over the entire range of the magnetic body part in the direction perpendicular to the one axis direction, exposed in the direction perpendicular to the one axis direction, and formed by oblate soft magnetic grains whose thickness direction is oriented in the one axis direction; and spherical grain-containing layers adjoining the oblate soft magnetic grain-containing layers in the one axis direction, and formed by insulative spherical grains.

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Tokyo, Japan

Hidekazu Teshigawara