Circuit protection device and method of manufacturing the same
AssigneeInnochips Technology Co., Ltd.
InventorsIn-Kil Park, Tae-Hyung Noh, Kyu Cheol Jang, Myung Ho Lee, Gyeong Tae Kim, Sang Hwan Lee
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Abstract
The present invention relates to a circuit protection device and a method of manufacturing the same. The circuit protection device includes a common mode noise filter having a plurality of sheets, each of the sheets being formed to optionally include a coil pattern, an internal electrode, a hole filled with a conductive material, and a hole filled with a magnetic material; and an electrostatic discharge (ESD) protection device having a plurality of sheets, each of the sheets being formed to optionally include an internal electrode and a hole filled with an ESD protection material.
Claims21
A circuit protection device, comprising:
- a common mode noise filter having a plurality of sheets in which at least one magnetic layer is formed with a magnetic material embedded therein, a coil is formed by connecting internal electrodes through a plurality holes filled with a conductive material to surround the magnetic layer, and the internal electrodes having portions exposed to the outside;
- and
- an electro static discharge (ESD) protection device having a plurality of sheets and laminated on and joined with the common mode noise filter in which some of the sheets include at least one hole formed thereon, the hole is filled with an ESD protection material, and an internal electrode is connected to the ESD protection material,
- wherein the internal electrodes of the common mode noise filter are respectively formed on sheets provided in a top and a bottom of at least one sheet on which the magnetic layer is formed, and the internal electrodes are connected to the holes filled with a conductive material to form the coil surrounding the magnetic layer vertically.
The circuit protection device comprising:
- a common mode noise filter having a plurality of sheets in which at least one magnetic layer is formed with a magnetic material embedded therein, a coil is formed by connecting internal electrodes through a plurality of holes filled with a conductive material to surround the magnetic layer, and the internal electrodes having portions exposed to the outside;
- an electro static discharge (ESD) protection device having a plurality of sheets and laminated on and joined with the common mode noise filter in which some of the sheets include at least one hole formed thereon, the hole is filled with an ESD protection material, and an internal electrode is connected to the ESD protection material;
- a coil unit formed by laminating a plurality of sheets, wherein the magnetic layers are respectively formed at the same position of the plurality of sheets, and the coil is formed by connecting the internal electrodes through the plurality of holes to surround the magnetic layers;
- and
- a coil insertion unit having a coil insertion space formed in a predetermined region thereof.
A circuit protection device, comprising:
- an upper cover layer;
- a lower cover layer provided apart from the upper cover layer;
- a common mode noise filter provided between the upper cover layer and the lower cover layer and having a plurality of sheets laminated with each other in which at least one sheet has at least one coil pattern formed thereon;
- and
- an electro static discharge (ESD) protection device provided between the common mode noise filter and the lower cover layer and having an ESD protection material formed on at least on sheet.
Dependencies are inferred from the claim text.