Filter device

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United States of America Patent

PATENT NO 12108527
APP PUB NO 20230063635A1
SERIAL NO

17822283

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Importance

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Abstract

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A filter device includes: a multilayer board including a first dielectric layer, a first wiring layer including a reference electrode to which a reference potential is supplied, and a second dielectric layer positioned between the first dielectric layer and the first wiring layer and having a thickness different from a thickness of the first dielectric layer; a series passive element provided on a series wire electrically connecting a first terminal and a second terminal together; a first parallel wire electrically connecting the series wire and the reference electrode together; and a first parallel passive element provided on the first parallel wire. The first parallel wire includes: a first via penetrating through the first dielectric layer and electrically connected to the first parallel passive element; and a second via penetrating through the second dielectric layer and electrically connecting the first via and the reference electrode together.

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Patent Owner(s)

Patent OwnerAddress
MURATA MANUFACTURING CO LTD10-1 HIGASHIKOTARI 1-CHOME NAGAOKAKYO-SHI KYOTO-FU 617-8555

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takahashi, Wataru Kyoto, JP 324 3420

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