Inductor and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9520223-B2
Application number	US-201414223567-A
Country	US
Kind code	B2
Filing date	Mar 24, 2014
Priority date	Mar 25, 2013
Publication date	Dec 13, 2016
Grant date	Dec 13, 2016

Abstract

The present invention relates to an inductor. An inductor in accordance with an embodiment of the present invention includes: an insulating layer having a hole; a conductive pattern disposed on both surfaces of the insulating layer and having a structure in which portions disposed on the both surfaces are electrically connected to each other through the hole; and a magnetic layer disposed on the insulating layer to cover the conductive pattern, wherein the conductive pattern has a plating pattern formed by performing a plating process.

First claim

What is claimed is:

1. An inductor comprising:
an insulating layer having a hole;
a conductive pattern disposed on both surfaces of the insulating layer and having a structure in which portions disposed on the both surfaces are electrically connected to each other through the hole; and
a magnetic layer disposed on the insulating layer to cover the conductive pattern, wherein the conductive pattern comprises a first conductive pattern having a conducting portion formed in the hole and disposed on one surface of the insulating layer; and a second conductive pattern disposed on the other surface of the insulating layer and electrically connected to the first conductive pattern through the hole, and wherein a seed layer is only disposed between one surface of the insulating layer and an upper side of the first conductive pattern, wherein the second conductive pattern is a metal plate having an opening pattern, and wherein the metal plate is in direct contact with the surface of the insulating layer without any seed layer.

2. The inductor according to claim 1 ,
wherein the first conductive pattern is a plating pattern.

3. The inductor according to claim 1 , wherein the conductive pattern has a metal pattern formed by etching a metal plate.

4. The inductor according to claim 1 ,
wherein the second conductive pattern is a metal pattern formed by etching a metal plate.

5. The inductor according to claim 1 , wherein the insulating layer has a thickness of less than 40 μm.

6. The inductor according to claim 1 , wherein the conductive pattern comprises a first conductive pattern having a conducting portion formed in the hole and disposed on one surface of the insulating layer, wherein the thickness of the first conductive pattern is more than 2.5 times the thickness of the insulating layer.

7. The inductor according to claim 1 , wherein the conductive patterns disposed on both sides of the insulating layer based on the insulating layer have the same thickness.

8. The inductor according to claim 1 , wherein the magnetic layer is made of a metal-resin composite comprising an iron (Fe)-containing metal and a thermosetting resin.

9. The inductor according to claim 1 , wherein the conductive pattern has a multilayer coil structure disposed on both sides of the insulating layer with the insulating layer interposed therebetween.

Assignees

• Samsung Electro Mech

Inventors

• Yoo Young Seuck
• Hur Kang Heon
• Yang Jin Hyuck
• Wi Sung Kwon
• Lee Jong Yun
• Kweon Young Do

Classifications

• H01F2027/2809

  on stacked layers · CPC title

• Y10T29/4902

  Electromagnet, transformer or inductor · CPC title

• H01F27/292

  Surface mounted devices · CPC title

• H01F27/255

  made from particles (H01F27/26 takes precedence) · CPC title

• H01F27/022

  Encapsulation · CPC title