LAMINATED COIL COMPONENT AND MANUFACTURING METHOD THEREFOR

WIPO Patent Application WO/2015/174124

A1

Coil conductors (CP3, CP5) are formed on magnetic layers (L3, L5), respectively, and a carbon paste (CB4) is formed on a magnetic layer (L4). When viewed from a vertical direction, the coil conductors (CP3, CP5) draw a double ring. The coil conductor (CP3) includes partial coil conductors (CP3a, CP3b) respectively corresponding to an outer ring and an inner ring that constitute the double ring, and the coil conductor (CP5) includes partial coil conductors (CP5a, CP5b) respectively corresponding to the outer ring and the inner ring that constitute the double ring. The carbon paste (CB4) has a width overlapping a gap between the outer ring and the inner ring that constitute the double ring, and extends annularly along the double ring. The carbon paste (CB4) is biased to the gap between the outer ring and the inner ring that constitute the double ring when the magnetic layers (L3-L5) are pressure-bonded. The carbon paste (CB4) disappears by burning, thereby forming an air gap (AG1).

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ESHIMA KAZUKI (JP)
YOKOYAMA TOMOYA (JP)
OKADA TAKAYUKI (JP)

PCT/JP2015/056743

November 19, 2015

March 06, 2015

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MURATA MANUFACTURING CO (JP)

H01F17/00; H01F41/04

WO1996028832A1

1996-09-19

JP2012164770A

2012-08-30

SAKAI, MASATOSHI (JP)
Boundary Masatoshi (JP)

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