| abstract |
The present invention relates to a magnetic substrate, a common mode filter, a method of manufacturing a magnetic substrate, and a method of manufacturing a common mode filter, including: a coil portion including an insulating layer and a conductor pattern formed inside the insulating layer; And a magnetic substrate coupled to one surface or both surfaces of the coil portion, wherein the magnetic substrate includes an electrostatic absorption layer made of an electrostatic absorption material; A magnetic layer provided on one side or both sides of the electrostatic absorption layer, the magnetic layer being made of a magnetic material; And an electrode made of a conductive material and provided between the magnetic layer and the electrostatic absorption layer to provide a useful effect of preventing electrostatic discharge and maintaining high efficiency characteristics of the common mode filter. |