COIL ELECTRONIC COMPONENT

• US 20180108469A1
• Filed: 12/06/2017
• Published: 04/19/2018
• Est. Priority Date: 04/16/2015
• Status: Active Grant

• Current Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group)
• Inventors: MOON, Byeong Cheol, PARK, Il Jin, LEE, Se Hyung
• Granted Patent: US 10,957,476 B2
• Time in Patent Office: Days
• CPC Class Codes: H01F 17/0033 with the coil helically wound around a magnetic core
• CPC Class Codes: H01F 27/255 made from particles H01F27/26 takes precedence
• CPC Class Codes: H01F 27/292 Surface mounted devices

Abstract

A coil electronic component includes a body including metal powder particles having shape anisotropy and a coil unit disposed in the body and having an axis perpendicular with respect to a thickness direction of the body. The metal powder particles having shape anisotropy are arranged such that a plane-shaped surface thereof is parallel to a direction of flow of magnetic flux.

Claims

1. A coil electronic component comprising:

a body including a magnetic metal plate; and

a coil unit disposed in the body and having an axis perpendicular with respect to a thickness direction of the body,

wherein the magnetic metal plate is arranged to be parallel to a direction of flow of magnetic flux.

2. The coil electronic component of claim 1, wherein the coil unit includes an upper pattern formed on an upper surface of the body, a lower pattern formed on a lower surface of the body, and first and second through conductors connecting the upper and lower patterns through the body and spaced apart from one another.

3. The coil electronic component of claim 2, wherein first and second insulating layers are formed on the upper and lower surfaces of the body, respectively.

4. The coil electronic component of claim 1, wherein a thermosetting resin layer is formed on at least one surface of the magnetic metal plate.

5. The coil electronic component of claim 1, wherein the magnetic metal plate is cracked to include a plurality of metal fragments.

6. The coil electronic component of claim 5, wherein spaces between the plurality of adjacent metal fragments contain a thermosetting resin.

7. The coil electronic component of claim 5, wherein the magnetic metal plate is cracked such that adjacent metal fragments have shapes corresponding to each other.

8. The coil electronic component of claim 1, further comprising first and second external electrodes formed on a lower surface of the body and electrically connected to the coil unit.