Patent ID: 8106722

Claim:
A multi-layered device comprising: an insulator including a plurality of multi-layered dielectric sheet layers; a ground electrode layer arranged substantially in parallel to the dielectric sheet layers in a location of one of an inside part of the insulator layer and a surface of the insulator; side-surface ground electrodes arranged on side surfaces of the insulator; and a plurality of resonators formed in the insulator, the resonators including first and second resonators, wherein the first resonator comprises: a first capacitive electrode layer arranged substantially in parallel to the dielectric sheet layers; and a first viahole inductor conductor which has one end connected to the first capacitive electrode layer and is arranged to be substantially perpendicular to the dielectric sheet layers, wherein the second resonator comprises: a second capacitive electrode layer arranged substantially in parallel to the dielectric sheet layers; and a second viahole inductor conductor which has one end connected to the second capacitive electrode layer and is arranged to be substantially perpendicular to the dielectric sheet layers, wherein the first and second viahole inductor conductors are arranged in such a positional relation that a distance between the first and second viahole inductor conductors is smaller than 1.5 times a length of the first viahole inductor conductor, and wherein the multi-layered device includes an inductor electrode layer connected between another end of the first viahole inductor conductor and the side-surface ground electrode and arranged substantially in parallel to the dielectric sheet layers.