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US 6,587,020 B2Granted
Multilayer LC composite component with ground patterns having corresponding extended and open portions
AssigneeMurata Manufacturing Co., Ltd.
InventorAtsushi Tojyo
Life of this patent
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Abstract
A multilayer LC composite component minimizes the inductances of ground patterns to prevent electromagnetic waves from leaking outside the component. The multilayer LC composite component includes ground patterns having large areas arranged in the upper and lower sections of the component, with inductor patterns and resonant capacitor patterns arranged between the ground patterns. The ground patterns have portions extended in different positions such that no clearance is left between the extended portions in plan view.
Claims18
A multilayer LC composite component comprising:
- a plurality of insulation layers stacked to define a multilayered body;
- an inductor and a capacitor disposed in the multilayer body to define an LC resonator;
- at least two ground patterns arranged on different ones of the insulation layers that are adjacent to each other and including extended portions;
- and
- external ground electrode disposed on the multilayered body, the at least two ground patterns being electrically connected to the external ground electrode via the extended portions;
- wherein
- the extended portions of the at least two ground patterns are arranged in the multilayered body at different positions in plan view;
- openings are formed on both sides of the extended portions of one of the at least two ground patterns;
- and
- the openings formed on both sides of the extended portions of the one of the at least two ground patterns are closed with the extended portions of the other of the at least two ground patterns.
7 more elements
A multilayer LC composite component comprising:
- a plurality of insulation layers stacked to define a multilayered body;
- an inductor and a capacitor disposed in the multilayer body to define an LC resonator;
- at least two ground patterns arranged on different ones of the insulation layers that are adjacent to each other and including extended portions;
- and
- an external ground electrode disposed on the multilayered body, the at least two ground patterns being electrically connected to the external ground electrode via the extended portions;
- wherein
- the extended portions of the at least two ground patterns are arranged such that magnetic fields generated at the extended portions of the ground patterns do not converge on the same portion of the multilayered body;
- openings are formed on both sides of the extended portions of one of the at least two ground patterns;
- and
- the openings formed on both sides of the extended portions of the one of the at least two ground patterns are closed with the extended portions of the other of the at least two ground patterns.
7 more elements
Dependencies are inferred from the claim text.