Abstract:
The present invention relates to a common mode filter.A common mode filter in accordance with the present invention includes a magnetic substrate formed of a magnetic ceramic material; a first coil pattern and a second coil pattern sequentially formed on the magnetic substrate; an external electrode laminated on the second coil pattern; a via for connecting the first coil pattern and the second coil pattern; and a second insulating layer formed between the first coil pattern and the second coil pattern, wherein the height of the second insulating layer is 5 μm to 20 μm while being proportional to the height of the via and thus it is possible to improve SRF and insertion loss characteristics by adjusting the height of the second insulating layer.
Abstract:
Disclosed herein is a common mode filter including: a body element including an insulating member enclosing a coil electrode pattern and a magnetic member disposed on one surface or both surfaces of the insulating member; and an insulating layer disposed on at least one side of the body element, thereby increasing an interlayer adhesion between the respective components configuring the common mode filter.
Abstract:
A coil component includes a body part containing a magnetic material, a coil part disposed in the body part, and an electrode part disposed on the body part. The coil part includes a support member, a first coil layer disposed on at least one surface of the support member, a first insulating layer stacked on at least one surface of the support member and covering the first coil layer, and a second coil layer disposed on the first insulating layer. The first and second coil layers are electrically connected to each other, and the second coil layer has a larger number of coil turns than the first coil layer. Additionally or alternatively, a conductor of the first coil layer has an aspect ratio less than 1. Methods of manufacturing such coil components are also provided.
Abstract:
Disclosed herein are a thin film common mode filter and a method of manufacturing the same. The thin film common mode filter according to the exemplary embodiment of the present invention includes a magnetic substrate made of a magnetic ceramic material; and coil patterns formed on the magnetic substrate, wherein external electrodes connected with the coil patterns are sequentially stacked and insulating layers formed on and beneath the coil pattern are made of a composite of ferrite powder and thermosetting resin.