Common mode filter and method of manufacturing the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsJu Hwan YANG, Sung Kwon WI, Jang Su KIM, Geon Se CHANG, Young Do KWEON
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Abstract
Disclosed herein are a common mode filter for increasing inductance using simpler structure and a method of manufacturing the same, the common mode filter including: a magnetic material substrate; an insulating layer included on an upper portion of the magnetic material substrate and having a coil electrode formed therein; an opening part penetrating through a central portion of the insulating layer; and a magnetic composite formed in the opening part, wherein the opening part has a side wall inclined at a predetermined angle.
Claims11
A common mode filter, comprising:
- a magnetic material substrate;
- an insulating layer included on an upper portion of the magnetic material substrate and having a coil electrode formed therein;
- an opening part penetrating through a central portion of the insulating layer;
- and
- a magnetic composite formed in the opening part,
- wherein the opening part has a side wall inclined at a predetermined angle.
A method of manufacturing a common mode filter, the method comprising:
- repeatedly forming a coil conductor and an insulating resin covering the coil conductor on one surface of a magnetic material substrate to form an insulating layer surrounding a coil electrode;
- firing the insulating layer;
- processing an opening part penetrating through a central portion of the insulating layer;
- and
- forming a magnetic composite in the opening part,
- wherein the opening part has a side wall processed to be inclined at a predetermined angle.
Dependencies are inferred from the claim text.