Chip electronic component and manufacturing method thereof

A manufacturing method of a chip electronic component, the manufacturing method comprising:

• forming internal conductor patterns on one or more surfaces of an insulating substrate;
• forming a magnetic body by stacking magnetic layers on upper and lower surfaces of the insulating substrate having the internal conductor patterns formed thereon and pressing the stacked magnetic layers;
• and
• forming external electrodes on outer surfaces of the magnetic body to be connected to the internal conductor patterns,
• wherein the magnetic body is formed by mixing first magnetic particles and second magnetic particles;
• the first magnetic particles and the second magnetic particles are formed of an amorphous metal containing iron (Fe);
• the first magnetic particles are coarse powder particles having a major axis length of 15 μm or more, and
• the second magnetic particles are fine powder particles having a major axis length of 5 μm or less.

A chip electronic component, comprising:

• a magnetic body including an insulating substrate having a first main surface and an opposing second main surface;
• a first coil-shaped internal conductor pattern formed on the first main surface of the insulating substrate;
• a second coil-shaped internal conductor pattern formed on the second main surface of the insulating substrate substrate,
• wherein the first coil-shaped conductor pattern and the second coil-shaped conductor pattern are electrically connected to each other through a conductive via in the insulating substrate;
• a first external electrode formed on a first outer surface of the magnetic body and connected to the first internal conductor pattern,
• a second external electrode formed on a second outer surface of the magnetic body opposing the first external electrode;
• wherein the magnetic body includes first magnetic particles and second magnetic particles, and
• the first magnetic particles and the second magnetic particles are formed of an amorphous metal containing iron (Fe), and
• wherein the first magnetic particles have a particle size distribution D50 4 to 13.5 times greater than that of the second magnetic particles.