Invention Grant
- Patent Title: Multilayer type power inductor
- Patent Title (中): 多层式功率电感
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Application No.: US13237272Application Date: 2011-09-20
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Publication No.: US08576040B2Publication Date: 2013-11-05
- Inventor: Myeong Gi Kim , So Yeon Song , Ic Seob Kim , Sung Yong An , Jin Woo Hahn , Soo Hwan Son
- Applicant: Myeong Gi Kim , So Yeon Song , Ic Seob Kim , Sung Yong An , Jin Woo Hahn , Soo Hwan Son
- Applicant Address: KR Suwon
- Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee: Samsung Electro-Mechanics Co., Ltd.
- Current Assignee Address: KR Suwon
- Agency: McDermott Will & Emery LLP
- Priority: KR10-2011-0038604 20110425
- Main IPC: H01F5/00
- IPC: H01F5/00 ; H01F27/28 ; H01F17/00 ; C04B35/00

Abstract:
Disclosed herein is a multilayer type power inductor including: a plurality of body layers including internal electrodes and having magnetic material layers stacked therein; and a plurality of gap layers, wherein the gap layer has an asymmetrical structure. In the multilayer type power inductor, portions that are in contact with the body layers have, a non-porous structure, which is a dense structure, and portions that are not in contact with the body layers have a porous structure, such that the gap layer has the asymmetrical structure. Therefore, a magnetic flux propagation path in a coil is dispersed to suppress magnetization at a high current, thereby making it possible to improve a change in inductance (L) value according to the application of current.
Public/Granted literature
- US20120268230A1 MULTILAYER TYPE POWER INDUCTOR Public/Granted day:2012-10-25
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