公开(公告)号：US20150061467A1

公开(公告)日：2015-03-05

申请号：US14108575

申请日：2013-12-17

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Je-Hong Kyoung ,  Ho-Phil Jung ,  Tae-Joon Park ,  Won Han ,  Sung-Wook Kim

IPC: H03H9/21 ,  H03H3/02

CPC classification number: H03H9/21 ,  H03H3/02 ,  H03H2003/026 ,  Y10T29/42

Abstract: The present invention presents a piezoelectric piece for a piezoelectric vibrator and a manufacturing method thereof. The piezoelectric piece for a piezoelectric vibrator in accordance with an embodiment of the present invention includes: a base; and a vibrating arm connected to the base and having a groove formed therein. Here, one surface inside the groove includes: a first slope extended from an upper portion of the groove in a lower direction so as to have a first angle; and a second slope extended from a lower portion of the first slope in a lower direction so as to have a second angle that is greater than the first angle, and a rate of a depth of the first slope for a depth of the groove is greater than or equal to 0.5 and less than or equal to 1.

Abstract translation: 本发明提供一种压电振动器用压电体及其制造方法。 根据本发明实施例的用于压电振动器的压电片包括：基座; 以及连接到所述基座并且在其中形成有凹槽的振动臂。 这里，凹槽内的一个表面包括：从下部方向的槽的上部延伸的第一斜面，以便具有第一角度; 以及从第一斜面的下部沿下方延伸的第二斜面，以具有大于第一角度的第二角度，并且用于凹槽深度的第一斜面的深度比率更大 大于等于0.5且小于等于1。