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US 11,057,015 B2Granted
Surface acoustic wave device
AssigneeMurata Manufacturing Co., Ltd.
InventorKoichiro Kawasaki
Life of this patent
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Abstract
A surface acoustic wave device includes a piezoelectric substrate and functional elements on a first surface of the piezoelectric substrate. At least a portion of the functional elements includes an interdigital transducer (IDT) electrode, and a surface acoustic wave resonator is defined by the piezoelectric substrate and the IDT electrode. A portion of a wiring pattern connecting a first functional element and a second functional element is on a second surface different from the first surface of the piezoelectric substrate.
Claims20
A surface acoustic wave device comprising:
- a piezoelectric substrate;
- a plurality of functional elements on a first surface of the piezoelectric substrate;
- and
- a protective resin member on the piezoelectric substrate;
- wherein
- an interdigital transducer (IDT) electrode is included in at least a portion of the plurality of functional elements, and a surface acoustic wave resonator is defined by the piezoelectric substrate and the IDT electrode;
- a portion of a wiring pattern connecting a first functional element and a second functional element included in the plurality of functional elements is provided on a second surface different from the first surface of the piezoelectric substrate;
- and
- at least one of the plurality of functional elements is connected to a terminal electrode provided at a side of the second surface of the piezoelectric substrate.
6 more elements
Dependencies are inferred from the claim text.