公开(公告)号：EP2256923A1

公开(公告)日：2010-12-01

申请号：EP09722051.1

申请日：2009-03-17

申请人： Citizen Holdings Co., Ltd.

发明人： MURATA, Kazuo ,  TORIUMI, Kazuhiro ,  KUBO, Toshiya ,  MARUYAMA, Takashi ,  NAKAZAWA, Tomoyuki ,  TSUCHIYA, Taichi ,  YAMAMOTO, Izumi ,  KATOH, Akiko ,  HORIUCHI, Sadao ,  MIYAUCHI, Hiroshi ,  ARAI, Isao ,  SHIOJI, Akihiro ,  IKEDA, Tomoo ,  TAKIZAWA, Maki ,  KIGAWA, Keisuke

IPC分类号： H03H9/10 ,  H01L23/04 ,  H03H9/19 ,  H03H9/215

CPC分类号： H03H9/19 ,  H01L23/057 ,  H01L2224/16225 ,  H03H9/0514 ,  H03H9/1014 ,  H03H9/1021 ,  H03H9/215

摘要： A piezoelectric device has a piezoelectric vibration element mounted in a package wherein the piezoelectric vibration element comprises two stick-like vibration legs; a central leg provided between the two vibration legs; a coupling portion that couples one end of each of the two vibration legs and one end of the central leg; and a protrusion portion that is coupled to another end of the central leg, has a predetermined angle, neither 0 nor 180 degrees, to the length direction of the central leg, and extends into a direction not interfering with the driving legs. In making the piezoelectric device smaller and thinner, this configuration avoids interference between a support point on the central leg, provided for supporting the vibration element, and conductive electrodes, improves insulation between the conductive electrodes, and reduces the generation of short-circuits between the conductive electrodes.

摘要翻译： 压电装置具有安装在封装中的压电振动元件，其中压电振动元件包括两个棒状振动腿; 设置在两个振动腿之间的中心腿; 联接部分，其耦合两个振动腿中的每一个的一端和中心腿的一端; 并且连接到中心腿的另一端的突出部分具有与中心腿的长度方向既不是0°也不是180度的预定角度，并且延伸到不干扰驾驶腿的方向。 在使压电装置越来越小的情况下，这种构造避免了用于支撑振动元件的中心支柱上的支撑点与导电电极之间的干涉，改善了导电电极之间的绝缘，并且减少了导电电极之间的短路 导电电极。