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US 2014/0368296 A1Published application
Acoustic wave device
AssigneeTaiyo Yuden Co., Ltd.
InventorToshio Nishizawa
Life of this patent
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Abstract
An acoustic wave filter includes a piezoelectric substrate, an insulating pattern that has higher thermal conductivity than the piezoelectric substrate formed on the piezoelectric substrate, at least two pads formed on the piezoelectric substrate or the insulating pattern, at least one pad formed on the insulating pattern, at least one acoustic resonator formed on the insulating pattern, and at least one acoustic resonator directly formed on the piezoelectric substrate.
Claims18
An acoustic wave filter, comprising:
- a piezoelectric substrate;
- one or more insulating patterns formed on said piezoelectric substrate, said insulating pattern having higher thermal conductivity than said piezoelectric substrate;
- at least two pads formed on said piezoelectric substrate or said insulating pattern;
- at least one pad formed on said insulating pattern;
- at least one acoustic resonator including a first interdigital transducer, said first interdigital transducer being formed on said insulating pattern;
- and
- at least one acoustic resonator including a second interdigital transducer, said second interdigital transducer being directly formed on said piezoelectric substrate.
4 more elements
An acoustic wave filter, comprising:
- a piezoelectric substrate;
- one or more insulating patterns that are directly formed on the piezoelectric substrate, the insulating pattern having higher thermal conductivity than the piezoelectric substrate;
- a plurality of pads that are directly formed on the piezoelectric substrate or the insulating pattern;
- and
- interdigital transducers included in a plurality of acoustic resonators that are directly formed on the piezoelectric substrate or the insulating pattern,
- wherein an interdigital transducer included in at least one acoustic resonator, and at least one pad are formed on the same insulating pattern.
3 more elements
Dependencies are inferred from the claim text.