Title:
PIEZOELECTRIC VIBRATOR
Document Type and Number:
WIPO Patent Application WO/2022/158028
Kind Code:
A1
Abstract:
This piezoelectric vibrator is provided with a piezoelectric vibration element (10), a base member (30), and a pair of electrically conductive holding members (36a, 36b) which electrically connect a pair of connecting electrodes (16a, 16b) of the piezoelectric vibration element (10) and a pair of electrode pads (33a, 33b) of the base member (30), and which hold the piezoelectric vibration element (10) above the base member (30), wherein: a through hole (20) penetrating through a piezoelectric piece (11) is provided in a region of the piezoelectric piece (11) between a pair of excitation electrodes (14a, 14b) and the pair of connecting electrodes (16a, 16b) in a first direction; and a separation S1 between the parts of the edge portions of each of the pair of electrically conductive holding members (36a, 36b) that are farthest apart from one another in a second direction and a length L1 of the through hole (20) in the second direction obey the relationship S1/L1≤1.5.
Inventors:
IWASHITA NORIO (JP)
YAMAMOTO HIROYUKI (JP)
YAMAMOTO HIROYUKI (JP)
Application Number:
PCT/JP2021/032789
Publication Date:
July 28, 2022
Filing Date:
September 07, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H9/10; H03H9/19
Foreign References:
| JP2012156592A | 2012-08-16 | |||
| JP2020053802A | 2020-04-02 | |||
| JP2009188483A | 2009-08-20 | |||
| JP2014007693A | 2014-01-16 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Download PDF: