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    • 8. 发明申请
    • PIEZOELECTRIC VIBRATING PIECE, PIEZOELECTRIC VIBRATOR, OSCILLATOR, ELECTRONIC APPARATUS AND RADIO TIMEPIECE
    • 压电振动片,压电振动器,振荡器,电子装置和无线电时钟
    • US20140078870A1
    • 2014-03-20
    • US14024857
    • 2013-09-12
    • SII Crystal Technology Inc.
    • Takashi KOBAYASHI
    • H01L41/09G04R60/00
    • H01L41/09G04C3/12G04R20/10G04R60/00H03H9/1021H03H9/215H03H2003/026
    • A piezoelectric vibrating piece, a piezoelectric vibrator, an oscillator, an electronic apparatus and a radio timepiece capable of reducing the size while suppressing reduction of rigidity and having excellent vibration characteristics. The piezoelectric vibrating piece includes a pair of vibrating arm portions in parallel to each other, a base portion integrally fixing base end portions of the pair of vibrating arm portions in a length direction, groove portions on main surfaces of the pair of vibrating arm portions and extending along the length direction, where each of the groove portions includes a first groove portion near a tip portion end of the vibrating arm portions and a second groove portion near the base end portion side of the vibrating arm portions with respect to the first groove portion, and the second groove portion is offset in a −X axis direction with respect to the first groove portion.
    • 压电振动片,压电振动器,振荡器,电子设备和无线电钟表,能够在抑制刚度降低并且具有优异的振动特性的同时减小尺寸。 压电振动片包括彼此平行的一对振动臂部,将一对振动臂部的基端部沿长度方向整体固定的基部,一对振动臂部的主表面上的槽部, 沿长度方向延伸,其中每个凹槽部分包括在振动臂部分的尖端部分附近的第一凹槽部分和相对于第一凹槽部分在振动臂部分的基端部侧附近的第二凹槽部分 并且第二槽部相对于第一槽部在-X轴方向上偏移。
    • 9. 发明授权
    • Method for manufacturing crystal oscillator
    • 制造晶体振荡器的方法
    • US08663487B2
    • 2014-03-04
    • US12997927
    • 2009-10-16
    • Akiko KatohTohru Yanagisawa
    • Akiko KatohTohru Yanagisawa
    • G01C19/56H03H9/215H03H9/21H03H9/02H03H3/02G01C19/5628
    • H03H9/215G01C19/5628H03H9/02023H03H9/02118H03H9/21H03H2003/026Y10T29/42
    • The invention is directed to the provision of a method for manufacturing a crystal oscillator manufacturing method that can achieve a highly precise fine adjustment without applying unnecessary external force to a crystal oscillator, and that can adjust a plurality of crystal oscillators in a collective manner. More specifically, the invention provides a method for manufacturing a crystal oscillator includes a first etching step for forming a prescribed external shape, an electrode forming step for forming an electrode at least in a portion of a surface of the external shape, a leakage amount measuring step for measuring leakage amount associated with leakage vibration of the external shape, and a second etching step for etching the external shape by an amount that is determined based on a measurement result of the leakage amount measuring step so as to adjust balance.
    • 本发明涉及提供一种制造晶体振荡器制造方法,该方法可以在不对外界施加不必要的外力的情况下实现高精度的精细调整,并且能够以集体的方式调节多个晶体振荡器。 更具体地说,本发明提供了一种制造晶体振荡器的方法,该方法包括用于形成规定的外部形状的第一蚀刻步骤,至少在外部形状的一部分中形成电极的电极形成步骤, 用于测量与外部形状的泄漏振动相关的泄漏量的步骤,以及用于根据泄漏量测量步骤的测量结果确定的量蚀刻外部形状以调整平衡的第二蚀刻步骤。