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    • 10. 发明申请
    • Tuning fork flexural crystal vibration device, crystal vibrator, and crystal oscillator
    • 调音叉弯曲振动装置,晶体振子和晶体振荡器
    • US20080238557A1
    • 2008-10-02
    • US12079635
    • 2008-03-27
    • Shigeru Kizaki
    • Shigeru Kizaki
    • H03B5/32H03B1/00H01L41/08
    • H03B5/30G01C19/5607H03H9/1021H03H9/21
    • A tuning fork flexural crystal vibration device includes a base, two vibration arms, grooves, electrodes, and wirings. The base has a flat plate shape. The two vibration arms have flat panel shapes extending from a side surface of the base in the same direction. The grooves are provided for the two vibration arms so as to extend from base-side end portions of the vibration arms along the longitudinal direction of the vibration arms and are depressed in the thickness direction of the vibration arms. The grooves include front-side grooves which open in the front main surfaces of the vibration arms and are provided at least one by one for each vibration arm, and rear-side grooves which open in the rear main surfaces of the vibration arms and are provided at least one by one for each vibration arm. The bottom surface of the front-side groove does not face the bottom surface of the rear-side groove provided in the same vibration arm in which the front-side groove is provided. The electrodes are formed on the surfaces of the base and the two vibration arms. The wirings electrically connect the electrodes to each other. A crystal vibrator and crystal oscillator are also disclosed.
    • 音叉弯曲晶体振动装置包括基座,两个振动臂,凹槽,电极和布线。 基座具有平板形状。 两个振动臂具有从基座的侧表面沿相同方向延伸的平板形状。 为两个振动臂设置有槽,以便沿着振动臂的长度方向从振动臂的底侧端部延伸并在振动臂的厚度方向上被压下。 槽包括在振动臂的前主表面上开口并且至少一个地设置在每个振动臂上的前侧槽和在振动臂的后主表面上开口的后侧槽 每个振动臂至少一个接一个。 前侧槽的底面不面向设置在设置有前侧槽的同一振动臂中的后侧槽的底面。 电极形成在基座和两个振动臂的表面上。 布线将电极彼此电连接。 还公开了一种晶体振子和晶体振荡器。