FILTER FOR REMOVING NOISE

摘要

In the present invention, disclosed is a filter for removing a noise, which includes: a bottom magnetic body; first and second patterns which are spirally formed on the bottom magnetic body in parallel; an insulation layer which covers the first and second patterns; and a top magnetic body which is formed on the insulation layer. Wherein, the first and second patterns have a ratio of a vertical thickness (T) to a horizontal width (W) to satisfy 0.27<=T/W<=2.4. According to the present invention, high common mode impedance is implemented in the same frequency and performance and capacity are improved. Manufacturing costs are reduced and productivity is improved by simplifying a structure and manufacturing processes.