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Patent Searching and Data


Title:
MULTILAYERED CHIP-TYPE POWER INDUCTOR AND A PRODUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2012/141476
Kind Code:
A2
Abstract:
The present invention relates to a multilayered chip-type power inductor and to a production method therefor. A multilayered chip-type power inductor is disclosed which comprises: a ferrite magnetic body layer formed from Mn-Zn based or Mn-Mg-Zn based ferrite; an internal electrode which is formed from copper, and is formed in the shape of a coil on the inside of the ferrite magnetic body layer; and an external electrode which is formed either on two side surfaces or on the upper and lower surfaces of the ferrite magnetic body layer, and is electrically connected to the internal electrode that is exposed either on the two side surfaces or on the upper and lower surfaces of the ferrite magnetic body layer. Also, disclosed is a multilayered chip-type power inductor production method comprising: a green laminate forming step involving the lamination of green compacts comprising internal electrodes which are formed by moulding a Mn-Zn based or Mn-Mg-Zn based ferrite powder into a sheet shape and printing copper onto the surface thereof; a green laminate sintering step in which a sintered laminate is formed by sintering the green laminate in a reducing atmosphere; and a step of forming external electrodes by forming external electrodes that are respectively connected to the internal electrode that is exposed either on two side surfaces or on the upper and lower surfaces of the sintered laminate.

Inventors:
SINN DONGSOOK (KR)
Application Number:
KR2012/002721
Publication Date:
October 18, 2012
Filing Date:
April 10, 2012
Export Citation:
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Assignee:
FCELL TECH CO LTD (137-170, KR)
SINN DONGSOOK (KR)
International Classes:
H01F17/00; H01F27/28
Foreign References:
JP2001217116A2001-08-10
KR100631893B12006-10-09
Attorney, Agent or Firm:
CHOI, KWANG HO (138-844, KR)
최광호 (138-844, KR)
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Claims: