公开(公告)号：US5192925A

公开(公告)日：1993-03-09

申请号：US694815

申请日：1991-05-02

申请人： Hiroaki Kaida

发明人： Hiroaki Kaida

IPC分类号： H03H3/02 ,  H03H9/05 ,  H03H9/10 ,  H03H9/17

CPC分类号： H03H9/177 ,  H03H3/02 ,  H03H9/1035

摘要： A piezoelectric resonator which comprises a piezoelectric resonance element in which electrodes are formed on a pair of side surfaces, which are opposed to each other, of a piezoelectric substrate. The electrodes are opposed to each other while being separated by the piezoelectric substrate in the center of the piezoelectric substrate to form a vibrating portion of an energy-trapped type utilizing a thickness shear vibration mode in the center of the piezoelectric substrate. Spacers are respectively fixed to the side surfaces of the piezoelectric substrate with gaps being provided between the spacers and the above-mentioned vibrating portion, and a pair of cover sheets are respectively affixed to both major surfaces of a structure comprising the spacers and the piezoelectric resonance element so as to form gaps on top of and beneath the vibrating portion in the piezoelectric resonance element.

摘要翻译： 一种压电谐振器，包括压电谐振元件，其中电极形成在彼此相对的一对侧表面上，压电基片。 电极彼此相对，同时在压电基板的中心被压电基片隔开，以在压电基片的中心形成利用厚度剪切振动模式的能量截留型的振动部分。 隔板分别固定在压电基板的侧表面上，间隔件和上述振动部分之间设置有间隙，并且一对盖片分别固定在包括间隔件和压电共振的结构的两个主表面上 以在压电谐振元件的振动部分的顶部和下方形成间隙。