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US 10,897,002 B2Granted
Acoustic resonator and method of manufacturing the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsDae Hun Jeong, Sang Uk Son, Tae Yoon Kim, Dae Ho Kim
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Abstract
An acoustic resonator includes a resonant portion including a piezoelectric layer disposed between a first electrode and a second electrode, and a frame portion disposed along an outer edge of the second electrode. The frame portion includes three reflective portions reflecting lateral waves generated in the resonant portion.
Claims12
An acoustic resonator, comprising:
- a resonant portion comprising a piezoelectric layer disposed between a first electrode and a second electrode;
- and
- a frame portion disposed along an outer edge of the second electrode,
- wherein the frame portion comprises:
- reflective portions configured to reflect lateral waves generated in the resonant portion;
- an internal frame spaced apart from the second electrode and disposed on the piezoelectric layer along an outer edge of the second electrode;
- and
- an external frame continuously disposed with the second electrode, and disposed on the piezoelectric layer to embed the internal frame in the external frame.
5 more elements
Dependencies are inferred from the claim text.