| 摘要 |
PROBLEM TO BE SOLVED: To provide a surface-mounted quartz crystal vibrator which excellently maintains vibration property with respect to shock. SOLUTION: Both sides of one end of a quartz crystal chip 2 in which lead-out electrodes extend from excitation electrodes are fixed to a quartz crystal terminal 3 on an inner bottom surface of a base using a conductive adhesive, and another end of the quartz crystal chip 2 is positioned on pillow parts 8 provided on the inner bottom surface of the base, wherein two independent pillow parts 8 are formed at both end sides in a width direction of the base. Thus, vibration property can be maintained excellent so that the effect to be exerted upon vibration property is minimized, an equivalent constant (L1, C1, R1) change is also reduced and a frequency change is suppressed. Furthermore, the exciting electrode has a rectangular shape and both corners of another end portion of the exciting electrode are cut to protrude a distal end side of the exciting electrode between the two pillow parts, thereby preventing the exciting electrode from being damaged by contact. COPYRIGHT: (C)2009,JPO&INPIT
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