Murata Manufacturing Co., Ltd.

Keisuke Kunimori

Yoshimasa Yoshioka

Akinori Hamada

Kouji Yamauchi

Ryuichiro Tominaga

Yuuki Kawakami

A coil component includes a main body made of a magnetic material, a linear inductor wiring conductor arranged in the main body, an electrically insulating pedestal having a top surface extending along the inductor wiring conductor in the main body and a pair of side surfaces each extending from both outer edges of the top surface in a direction intersecting the top surface, and a conductive seed layer provided over an entire region of at least a region sandwiched between the top surface of the pedestal and the inductor wiring conductor. When a width dimension of a surface of the inductor wiring conductor in contact with the seed layer is defined as a first width dimension and a width dimension of the seed layer is defined as a second width dimension, the second width dimension is larger than the first width dimension.

Coil component and method of manufacturing the same

An inductor component comprising a spiral wiring wound on a plane; a first magnetic layer and a second magnetic layer located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane on which the spiral wiring is wound; a vertical wiring extending from the spiral wiring in the normal direction to pass through the first magnetic layer; and an external terminal disposed on a surface of the first magnetic layer to connect an end surface of the vertical wiring. The first magnetic layer has magnetic permeability lower than that of the second magnetic layer.

Inductor component

An inductor component includes a main body, a first inductor wiring located inside the main body and extending on a virtual plane, and a second inductor wiring located inside the main body and extending in parallel to the virtual plane. The inductor component includes a third inductor wiring located between the first inductor wiring and the second inductor wiring inside the main body and extending in parallel to the virtual plane. The inductor component includes vertical wirings passing through the inside of the main body from each of the first to third inductor wirings to a surface of the main body in a direction perpendicular to the virtual plane. The third inductor wiring is a low-resistance inductor wiring having a DC electrical resistance smaller than those of the first inductor wiring and the second inductor wiring.

Growing community of inventors

Nagaokakyo, Japan

Keisuke Kunimori