Murata Manufacturing Co., Ltd.

Tsuyoshi Kawada

Kazutaka Nakamura

Kenjiro Hadano

Kazuhiro Kaneko

Iwao Fukutani

Yoshifumi Maki

Eiji Iso

Kazuhiko Takenaka

Ryouichi Urahara

Hirotsugu Tomioka

Shinichiro Izumi

Kuzuhiro Kaneko

A manufacturing method for an electronic component includes: a step of forming an insulating layer on an outer electrode body so as to cover the outer electrode body, the outer electrode body being formed on a chip element which forms the electronic component; and a step of removing the insulating layer in a predetermined region of the outer electrode body by applying laser light to the insulating layer in the predetermined region so as to expose the predetermined region. The insulating layer has a higher absorption coefficient for the laser light than a material forming a surface of the outer electrode body.

Manufacturing method for electronic component including electrode formed by removal of insulating layer by laser light

A laminated inductor includes a laminate having a plurality of insulating layers, a helical coil and first and second external electrodes on an underside of the laminate. The helical coil has coiled electrodes, each coiled up in one turn, and the first and second external electrodes are connected to respective, or corresponding, ends of the helical coil. Each of the coiled electrodes of the helical coil follow a path along the periphery of one of the insulating layers and include first end located in the path and second end located outside the path. The helical coil and the first external electrode are connected to each other by a lead via conductor formed in a space that is enclosed by parts of the coiled electrodes including the first and second ends.

Laminated inductor

Monolithic varistor

A laminated-type varistor includes a laminated structure and a pair of external electrodes disposed on a surface of the laminated structure. The laminated structure includes effective sintered body layers and internal electrodes. The internal electrodes are connected to the external electrodes and are disposed apart from each other in the direction perpendicular to lamination surfaces. Each of the internal electrodes has a multilayer electrode structure in which a plurality of electrode layers are arranged in layers while an ineffective sintered body layer is disposed therebetween. The laminated-type varistor has increased maximum peak current and maximum energy and reduction in clamping voltage.

Laminated-type varistor

Growing community of inventors

Nagaokakyo, Japan

Tsuyoshi Kawada