公开(公告)号：US20160322953A1

公开(公告)日：2016-11-03

申请号：US15206647

申请日：2016-07-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： KEISUKE TAKEYAMA ,  Daisuke Nakamura ,  Eitaro Kameda ,  Hiroaki Kaida

IPC: H03H9/02 ,  H03H9/17 ,  H03H3/02 ,  H03H3/007

CPC classification number: H03H9/02244 ,  H03H3/0077 ,  H03H3/02 ,  H03H3/04 ,  H03H9/0504 ,  H03H9/17 ,  H03H9/171 ,  H03H2003/027 ,  H03H2003/0442 ,  H03H2009/02173 ,  H03H2009/155

Abstract: A piezoelectric vibrator that includes a piezoelectric film with a pair of electrodes disposed on opposing sides of the piezoelectric film. Moreover, the vibrator includes first and second adjustment films with the first adjustment film covering the first surface of the piezoelectric film in a first region and the second adjustment film covering the first surface of the piezoelectric film in a second region that is different from the first region. Moreover, the second region of the piezoelectric film has a greater displacement than the first region when the piezoelectric vibrator vibrates.

Abstract translation: 一种压电振动器，其包括具有设置在所述压电膜的相对侧上的一对电极的压电膜。 此外，振动器包括第一和第二调节膜，其中第一调节膜在第一区域中覆盖压电膜的第一表面，并且第二调节膜在与第一区域不同的第二区域中覆盖压电膜的第一表面 地区。 此外，当压电振动器振动时，压电膜的第二区域具有比第一区域更大的位移。