Common mode filter

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;
• a conductive pattern formed in a single-layer structure and formed on a surface of the dielectric layer so as to be located on a same plane as the external electrode and having one end thereof connected with the external electrode;
• an insulator film formed along a surface of the conductive pattern;
• and
• a magnetic layer, comprising magnetic powder and resin material, formed on the insulator film so as to cover an upper surface and a lateral surface of the conductive pattern, and formed in between neighboring conductors of the conductive pattern.