Murata Manufacturing Co., Ltd.

Hiroyuki Sasaki

Ikuo Tamaru

Tetsuo Taniguchi

Hiroshi Masuda

Yosuke Matsushita

Takao Okano

Kenichiro Kikuchi

A multilayer bodyis obtained by stacking a plurality of insulator layers in which an inner conductor and a via hole conductor are formed. Outer electrodesthroughconnected to the inner conductor layers are formed on the opposite side surfaces of the multilayer bodyWhile the two outer electrodesandare formed so as to extend from one principal surface to the other principal surface of the multilayer bodythe other outer electrodesthroughare formed so as to extend from one principal surface to an exposed portion of the inner conductor on the multilayer bodyor formed so as not to reach the other principal surface. In addition, the widths of the outer electrodesthroughmay differ from one another.

Electronic component

An electronic component includes a capacitor having a desired capacitance value and a laminate including a plurality of laminated insulating material layers. Land electrodes are provided on a bottom surface of the laminate. Internal conductors face the land electrodes, respectively, across the insulating material layer within the laminate, have areas larger than those of the land electrodes, respectively, and contain the land electrodes, respectively, when seen in a planar view from a z-axis direction. A capacitor conductor is provided on the positive direction side of the capacitor conductors in the z-axis direction and faces the capacitor conductors.

A laminated body includes a plurality of insulator layers that are laminated to one another. First and second LC parallel resonators are loop-shaped or substantially loop-shaped and include via hole conductors extending in a z-axis direction and conductor layers provided on the insulator layers, and define a band pass filter. A first loop surface surrounded by the first LC parallel resonator is parallel or substantially parallel to a second loop surface surrounded by the second LC parallel resonator, and is disposed within the second loop surface in planar view in an x-axis direction.

A low pass filter includes a laminate including a plurality of insulating layers stacked in a z-axis direction and a mounting surface on a negative side in the z-axis direction. An external electrode is disposed on a lower surface of the laminate and is grounded. The laminate houses a substantially spiral coil having a central axis extending in the z-axis direction. Via-hole conductors extend from the end on the positive side in the z-axis direction of the coil toward the negative side in the z-axis direction. The external electrode and the end on the positive side in the z-axis direction of the coil are electrically coupled to each other through the via-hole conductors.

Low-pass filter

In a multilayer band-pass filter, each of first-stage to third-stage LC parallel resonators includes capacitor electrodes, via electrodes, and a line electrode. Jump-coupling capacitor electrodes face the capacitor electrodes of the first-stage and third-stage LC parallel resonators. The direction in which the inductor electrode extends from the capacitor electrodes of each of the first-stage and third-stage LC parallel resonators is opposite to the direction in which the inductor electrode extends from the capacitor electrodes of the second-stage LC parallel resonator.

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Nagaokakyo, Japan

Hiroyuki Sasaki