Patent ID: 9236847
Filing Date: 2016-01-12
CPC Classification: H01F,H03H

Claim Text:
1. A common mode filter comprising: a magnetic substrate; a dielectric layer laminated on the magnetic substrate; an external electrode formed on the dielectric layer in such a way that one surface thereof is exposed to an outside; conductive patterns formed in a single-layer structure, wherein each of the conductive patterns has one end thereof connected with the external electrode, is protruded from one surface of the dielectric layer in such a way that the conductive patterns are located on a same plane as the external electrode, and comprises a plurality of straight-line parts and a plurality of connection parts formed in curved lines and connecting the plurality of straight-line parts with each other; a magnetic layer, comprising magnetic powder and resin material and formed on the one surface of the dielectric layer and the conductive patterns so as to fill a separate space between the straight-line parts that are adjacent to each other and a separate space between the connection parts that are adjacent to each other; and an insulator film interposed between the conductive patterns and the magnetic layer so as to insulate the conductive patterns from the magnetic layer.