Patent ID: 8102234
Filing Date: 2012-01-24
Classification: H01F,H05K

Abstract:
1. A layered inductor comprising a layered body in which unfired silver-based conductive layers and unfired ferrite-based magnetic layers are layered and then simultaneously fired, and in which the conductive layers are via-connected so as to define a helical coil; wherein a cross-sectional shape of a surface of each of said conductive layers, cut by a plane perpendicular to a longitudinal direction of each of said conductive layers, is substantially a trapezoid shape and a lower base; wherein a base angle θ of said trapezoid shape at both end portions of said lower base is equal to or greater than 50° and is smaller than or equal to 80°; and wherein one of said magnetic layers has a gap extending so as to have a component along a layering direction of said layered body and so as to connect between two of said conductive layers adjacent to each other in the layering direction.