US 9,812,257 B2
Coil component and method of manufacturing coil component
Masayuki Itoh, Kawasaki (JP); and Hiroshi Kurosawa, Kawasaki (JP)
Assigned to FUJITSU LIMITED, Kawasaki (JP)
Filed by FUJITSU LIMITED, Kawasaki-shi, Kanagawa (JP)
Filed on May 20, 2015, as Appl. No. 14/717,455.
Claims priority of application No. 2014-131322 (JP), filed on Jun. 26, 2014.
Prior Publication US 2015/0380152 A1, Dec. 31, 2015
Int. Cl. H01F 5/00 (2006.01); H01F 27/28 (2006.01); H01F 41/04 (2006.01); H01F 17/00 (2006.01); H01F 27/29 (2006.01)
CPC H01F 41/041 (2013.01) [H01F 17/0013 (2013.01); H01F 27/292 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A coil component, comprising:
a substrate;
an opening formed in a center portion of the substrate;
a first coil pattern formed on an upper surface of the substrate, the first coil pattern is arranged so as to surround the opening and have a spiral shape;
a first recessed groove formed on the upper surface of the substrate and between the first coil pattern;
a second coil pattern formed on an under surface of the substrate, the second coil pattern is arranged so as to surround the opening and have a spiral shape;
a second recessed groove formed on the under surface of the substrate and between the second coil pattern; and
a conductor that penetrates the substrate and coupled to the first coil pattern and second coil pattern.