Method of making chip type power inductor

Details Method of making chip type power inductor Method of making chip type power inductor

2006-07-04

2006-07-04

Trinh, Minh (Department: 3729)

Metal working

Method of mechanical manufacture

Electrical device making

C029S604000, C336S200000, C336S223000, C336S232000

Reexamination Certificate

active

07069639

ABSTRACT:
A method of fabricating a chip type power inductor includes the steps of: preparing green sheets: forming cutting lines on a magnetic layer green sheet and a non-magnetic layer green sheet; forming via holes on the non-magnetic layer green sheet where the cutting lines are formed, and forming an electrode pattern at an upper surface of the non-magnetic layer green sheet; stacking a plurality of layers by constituting the magnetic layer and the non-magnetic layer where via holes and electrode patterns are formed as one unit in a state that a non-magnetic layer where cutting lines and electrode patterns are not formed is inserted; stacking a cover layer composed of a magnetic layer at upper and lower surfaces of the stacked layers; firing the stacked body; and forming external electrodes at an outer surface of the fired stack body.

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patent: 6675462 (2004-01-01), Takahashi
patent: 6917274 (2005-07-01), Hong et al.
patent: 6918173 (2005-07-01), Ahn

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