Surface acoustic wave resonator, surface acoustic wave oscillator, and electronic instrument

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United States of America Patent

PATENT NO 8760034
APP PUB NO 20120212301A1
SERIAL NO

13460149

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Abstract

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A SAW resonator which, using a quartz crystal substrate with Euler angles (−1.5°≦φ≦1.5°, 117°≦θ≦142°, and 41.9°≦|ψ|≦49.57°), includes an IDT that excites a stop band upper end mode SAW, and an inter-electrode finger groove provided between electrode fingers configuring the IDT. When a wavelength of the SAW is λ, a first depth of the inter-electrode finger groove is G, a line occupation rate of the IDT is η, and an electrode film thickness of the IDT is H, λ, G, η and H satisfy the relationship of 0

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamanaka, Kunihito Kamiina-gun, JP 28 455

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