Process for metallizing monolithic microwave ceramic filters
AssigneeSiemens Matsushita Components GmbH & Co. KG
InventorsChristian Block, Sigurd Greiderer, Gerhard Peperko
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Abstract
A monolithic microwave ceramic filter has a ceramic body with an outer surface, resonator bores being formed in the ceramic body and defining surfaces within the resonator bores, and coupling voids being formed in the ceramic body between the resonator bores. A process for metallizing the monolithic microwave ceramic filter includes covering at least the coupling voids with ceramic foil, and subsequently galvanically metallizing the ceramic body to produce a metallizing over at least a portion of the outer surface of the ceramic body and the surfaces within the resonator bores.
Claims6
A process for metallizing monolithic microwave ceramic filters having a ceramic body with an outer surface, resonator bores being formed in the ceramic body and defining surfaces within the resonator bores, and coupling voids being formed in the ceramic body between the resonator bores and defining surfaces within the coupling voids, which comprises covering at least the coupling voids with a ceramic platelet, and subsequently galvanically metallizing the ceramic body to produce a metallizing over at least a portion of the outer surface of the ceramic body and the surfaces within the resonator bores, with the ceramic platelet preventing the surfaces within the coupling voids from receiving a metallizing.
Dependencies are inferred from the claim text.