Common mode filter and method of manufacturing the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJong Yun LEE, Sung Kwon WI
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Abstract
Disclosed herein is a common mode filter, inlcuding: an external magnetic layer; an insulating layer formed on the external magnetic layer and having coil electrodes therein; a protecting layer formed on the insulating layer; an internal magnetic layer formed inside an opening part formed in one surface of the protecting layer; and external electrode terminals passing through the protecting layer and connected with end portions of the coil electrodes, so that there can be provided a common mode filter having excellent durability, moisture resistance, and heat resistance.
Claims12
A common mode filter, comprising:
- an external magnetic layer;
- an insulating layer formed on the external magnetic layer and having coil electrodes therein;
- a protecting layer formed on the insulating layer;
- an internal magnetic layer formed inside an opening part formed in one surface of the protecting layer;
- and
- external electrode terminals passing through the protecting layer and connected with end portions of the coil electrodes.
A method of manufacturing a common mode filter, the method comprising:
- processing an opening part in one surface of a protecting layer;
- forming an internal magnetic layer inside the opening part;
- processing holes passing through the protecting layer and then forming external electrode terminals inside the holes;
- forming an insulating layer having coil electrodes therein on the protecting layer while the external electrode terminals are subjected to growth plate;
- and
- forming an external magnetic layer on the insulating layer.
Dependencies are inferred from the claim text.