Patent ID: 9496845
Filing Date: 2016-11-15
CPC Classification: H01F,H03H

Claim Text:
1. A common mode filter comprising: a magnetic substrate; a first coil electrode formed on the magnetic substrate; a first lead electrode formed on the magnetic substrate so as to be connected with an end of the first coil electrode; a first dielectric layer formed on the magnetic substrate so as to cover an upper surface of the first coil electrode and an upper surface of the first lead electrode; a height compensation electrode formed on the upper surface of the first lead electrode in order to compensate for a difference in height between the first dielectric layer and the first lead electrode; a second coil electrode formed on the first dielectric layer so as to be electrically connected with the first coil electrode; a second lead electrode formed on the first dielectric layer so as to be connected with an end of the second coil electrode and to be in contact with an upper surface of the height compensation electrode; a second dielectric layer formed on the first dielectric layer so as to cover an upper surface of the second coil electrode and an upper surface of the second lead electrode; and an external electrode formed on the second dielectric layer so as to be electrically connected with the second lead electrode, wherein the second lead electrode is positioned further inside the common mode filter than the first lead electrode, such that the second lead electrode is disposed closer to the center of the common mode filter in a horizontal direction than the first lead electrode.