LC-included electronic component
AssigneeMurata Manufacturing Co., Ltd.
InventorsSadayuki Matsumura, Noboru Kato, Hiroko Nomura
Life of this patent
Estimating the term…
Abstract
An LC-included electronic component has a greatly reduced size, a greatly increased resonator Q, and outstanding reliability. Inductor via holes are successively connected in a direction in which insulating sheets are stacked to define columnar inductors. The inductor via holes each have a Y-direction dimension greater than an X-direction dimension on the X-Y plane of a section shape, and the shape has Y-direction ends of increased width. Specifically, each Y-direction end of the inductor via holes is substantially circular, and the other portions are linear.
Claims18
An LC-included component comprising:
- at least two LC resonators, each of said at least two LC resonators including at least one inductor and at least one capacitor, said at least one inductor and said at least one capacitor provided in a laminated unit defined by stacked insulating layers, wherein:
- said at least one inductor of each of said at least two LC resonators is defined by via holes successively connected in a stacking direction in which the insulating layers are stacked;
- said at least one inductor of said at least two LC resonators being arranged in an X direction of an X-Y plane;
- a mutual inductance being produced between the at least one inductor of a first of said at least two LC resonators and the at least one inductor of a second of said at least two LC resonators, and said at least two LC resonators being magnetically coupled;
- and
- each of said via holes having a section shape on the X-Y plane that is substantially perpendicular to said stacking direction such that a dimension in the Y direction is greater than a dimension in the X direction.
A method of manufacturing an LO-included component comprising:
- providing at least two LC resonators, each of said at least two LC resonators including at least one inductor and at least one capacitor, said at least one inductor and said at least one capacitor provided in a laminated unit defined by stacked insulating layers;
- forming via holes in said insulating layers to define said at least one inductor of each of said at least two LC resonators such that said via holes are successively connected in a stacking direction in which the insulating layers are stacked;
- arranging said at least one inductor of said at least two LC resonators in an X direction of an X-Y plane;
- arranging said at least two LC resonators to produce a mutual inductance between the at least one inductor of one of said at least two LC resonators and the at least one inductor of another one of said at least two LC resonators;
- arranging said at least two LC resonators to be magnetically coupled;
- and
- configuring each of said via holes to have a section shape on the X-Y plane that is substantially perpendicular to said stacking direction such that a dimension in the Y direction is greater than a dimension in the X direction.
Dependencies are inferred from the claim text.