Unit, oscillator and electronic apparatus
    8.
    发明授权
    Unit, oscillator and electronic apparatus 有权
    单元,振荡器和电子设备

    公开(公告)号:US09431957B2

    公开(公告)日:2016-08-30

    申请号:US14282389

    申请日:2014-05-20

    摘要: In a quartz crystal unit, the unit comprising a quartz crystal resonator having an overall length less than 2.1 mm, and a base portion, and first and second vibrational arms, at least one groove being formed in at least one of opposite main surfaces of each of the first and second vibrational arms so that a width of the at least one groove is greater than or equal to a distance in the width direction of the at least one groove measured from an outer edge of the at least one groove to an outer edge of the corresponding one of the first and second vibrational arms and less than 0.07 mm, at least one metal film for adjusting an oscillation frequency of the quartz crystal resonator being disposed on at least one of the opposite main surfaces of each of the first and second vibrational arms.

    摘要翻译: 在石英晶体单元中,所述单元包括总长度小于2.1mm的石英晶体谐振器和基本部分以及第一和第二振动臂,至少一个沟槽形成在每个的至少一个相对的主表面中 所述第一和第二振动臂的宽度使得所述至少一个凹槽的宽度大于或等于从所述至少一个凹槽的外边缘到外边缘测量的至少一个凹槽的宽度方向上的距离 的第一和第二振动臂中的相应一个并且小于0.07mm,用于调节石英晶体谐振器的振荡频率的至少一个金属膜设置在第一和第二振动臂中的每一个的相对主表面中的至少一个上 振动臂。