| 摘要 |
PROBLEM TO BE SOLVED: To derive a stable frequency even when a crystal oscillator is exposed at high temperature (about 240 deg.C) for solder bonding. SOLUTION: Concerning this crystal oscillator, a crystal board 1 having exciting electrodes 11 and 12 and lead-out electrodes 13a and 14a extended from the exciting electrodes 11 and 12 on the main side is connected/arranged between two lead terminals 3 and 4 planted on a pedestal 2 while using a polyimide resin adhesive agent, and a cap body 5 for covering the crystal board 1 is bonded to the pedestal 2. Then, a gapΔ1 from 0.5mm to 0.75mm is provided between the lower terminal parts of exciting electrodes 11 and 12 and the upper terminal part of polyimide resin adhesive agent.
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