Murata Manufacturing Co., Ltd.

Hiromitsu Yamanaka

Masayuki Oishi

Okinori Hashimoto

A coil component in which stress is relieved and a coil is stably positioned is to be provided. A coil component of the present disclosure includes a base body; and a coil provided in the base body. The base body includes a plurality of laminated magnetic layers. The coil includes a plurality of laminated coil wirings. The magnetic layers and the coil wirings are alternately laminated. A gap portion is provided between each of the magnetic layers and each of the coil wirings. Part of the coil wirings contacts the magnetic layers, and a region containing a metal oxide is present on part of a surface of each of the coil wirings on a side of the gap portion.

Coil component

A coil component includes a base body, and a coil disposed inside the base body and wound into a spiral shape. The coil includes a plurality of coil conductor portions and a plurality of lead-out conductor portions, both the conductor portions being laminated in a first direction. The lead-out conductor portions overlap, when viewed from the first direction, side gap portions given by regions of the base body on the outer side of the coil conductor portions in a radial direction. The base body includes a cavity between two among the coil conductor portions adjacent to each other in the first direction. The cavity includes a first cavity overlapping first one among the lead-out conductor portions in the first direction. The first cavity is present at a position away two or more pitches in the first direction from the first lead-out conductor portion overlapping the first cavity.

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Nagaokakyo, Japan

Hiromitsu Yamanaka