Surface-mounting-type coil component
First Claim
1. A surface-mounting-type coil component comprising:
- a core having a flat core portion in which a ratio t/w of a thickness t to a width w is not more than 1/3, and flange portions extending from both ends of said core portion in a longitudinal direction to be integrated with said core portion;
recessed grooves formed in side surfaces of said flange portions;
two or four electrode layers being formed by printing or baking which are spacedly positioned apart from each other and formed on peripheral portions, including side surfaces and recessed grooves of said flange portions in at least a vertical direction, of said flange portions of said core; and
a winding having two ends wound on said core portion of said core,wherein said winding has both ends obliquely led aslant to the side surfaces of said flange portions and conductively fixed to said electrode layers of said recessed grooves located on the side surfaces of said flange portions by thermo-compression bonding to form a conductively fixed portion, the conductively fixed portion being covered with a resin.
1 Assignment
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Accused Products
Abstract
A super-thin surface-mounting-type coil component, for mounting on a hybrid IC such as a DC-DC converter, is provided. Such a surface-mounting-type component comprises a core having a flat core portion in which the ratio of thickness to width (t/w) is not greater than 1/3, flange portions extending from both ends of the core portion in a longitudinal direction to be integrated with the core portion, two or four electrode layers spacedly positioned apart from each other and formed on peripheral portions, including side surfaces of the flange portions in at least a vertical direction, of the flange portions of the core, and a winding wound on the core portion of the core, having both ends obliquely led from the side surfaces of the flange portions and conductively fixed to the electrode layers of the side surfaces by thermo-compression bonding.
60 Citations
16 Claims
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1. A surface-mounting-type coil component comprising:
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a core having a flat core portion in which a ratio t/w of a thickness t to a width w is not more than 1/3, and flange portions extending from both ends of said core portion in a longitudinal direction to be integrated with said core portion; recessed grooves formed in side surfaces of said flange portions; two or four electrode layers being formed by printing or baking which are spacedly positioned apart from each other and formed on peripheral portions, including side surfaces and recessed grooves of said flange portions in at least a vertical direction, of said flange portions of said core; and a winding having two ends wound on said core portion of said core, wherein said winding has both ends obliquely led aslant to the side surfaces of said flange portions and conductively fixed to said electrode layers of said recessed grooves located on the side surfaces of said flange portions by thermo-compression bonding to form a conductively fixed portion, the conductively fixed portion being covered with a resin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification