Compact, High-Power Thin-Film Filter
AssigneeKYOCERA AVX Components Corporation
InventorsMichael Marek, Elinor O'Neill, Ronit Nissim
Life of this patent
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Abstract
A thin-film filter may include a monolithic substrate and a patterned conductive layer formed over the monolithic substrate. The patterned conductive layer may include at least one thin-film inductor. The thin-film filter may have a power capacity that is greater than about 25 W. In some embodiments, the thin-film inductor(s) may be connected between the input port and the output port. A heat sink terminal may be exposed along the bottom surface of thin-film filter. In some embodiments, the heat sink terminal may have an exposed heat sink area, and the bottom surface of the thin-film filter has an area that is less than 20 times larger than the exposed heat sink area.
Claims28
A thin-film filter comprising:
- a monolithic substrate;
- a patterned conductive layer formed over the monolithic substrate, the patterned conductive layer comprising at least one thin-film inductor;
- wherein the thin-film filter has a power capacity that is greater than about 25 W.
A thin-film filter comprising:
- a monolithic substrate;
- an input port exposed on a bottom surface of the thin-film filter;
- an output port exposed on the bottom surface of the thin-film filter;
- a patterned conductive layer formed over the monolithic substrate, the patterned conductive layer comprising at least one thin-film inductor, the at least one thin-film inductor connected between the input port and the output port;
- and
- a heat sink terminal exposed along the bottom surface of the thin-film filter;
- wherein the heat sink terminal has an exposed heat sink area, and wherein a footprint area of the thin-film filter is less than 20 times larger than the exposed heat sink area.
A method for forming a thin-film filter comprising:
- providing a monolithic substrate;
- forming a patterned conductive layer formed over the monolithic substrate, the patterned conductive layer comprising at least one thin-film inductor, the at least one thin-film inductor connected between an input port exposed on a bottom surface of the thin-film filter and an output port exposed on the bottom surface of the thin-film filter;
- and
- forming a heat sink terminal exposed along the bottom surface of the thin-film filter.
Dependencies are inferred from the claim text.