| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly reliable piezoelectric vibrator with little change in frequency due to a fall impact, etc. <P>SOLUTION: The metallic film 1 for adjusting the frequency except the peripheral part is trimmed with a laser beam, so that the frequency is adjusted. The piezoelectric vibrator includes a metallic film 1 for adjusting the frequency on the front surface of a vibration piece 2, and the outer periphery of the metallic film 1 is arranged apart from the outer peripheral part of the main surface of the vibration piece. <P>COPYRIGHT: (C)2004,JPO |
