| 摘要 |
PROBLEM TO BE SOLVED: To provide a piezoelectric vibrator and a piezoelectric oscillator that are completely sealed and prevent stress from remaining. SOLUTION: The piezoelectric vibrator includes a piezoelectric vibrating element, a piezoelectric vibrating element mounting member having a mean surface roughness of≤1 nm and made of alumina ceramic or glass ceramic, and a cover member having a recessed portion and a mean surface roughness of≤1 nm and made of alumina ceramic or glass ceramic, the piezoelectric vibrating element mounting member mounted with the piezoelectric vibrating element and the cover member being joined together directory at room temperature. Metal films for joining are provided on respective junction surfaces of the piezoelectric vibrating element mounting member and the cover member. COPYRIGHT: (C)2010,JPO&INPIT
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