Title:
【発明の名称】圧電振動子
Document Type and Number:
Japanese Patent JP2976815
Kind Code:
B2
Abstract:
A piezoelectric vibrator comprises a piezoelectric element (1) having a rectangular shape and being provided with at least one input electrode (3) from which an input lead (6) extends and at least one output electrode (5) from which an output lead (6) extends ; and a case (7) having a rectangle-like shape for accommodating the piezoelectric element (1) and having at least through holes (10) through which the input and output leads (6) penetrate thereby the leads (6) project to an exterior of the case (7). The through holes (10) have a size larger than a size of the leads (6) to create a clearance between the leads (6) and inner walls of the through holes (10) so as to allow the leads (6) to show a displacement or a vibration due to the vibration of the piezoelectric element (1). The case (7) has a size larger than a size of the piezoelectric element (1) for forming gaps (9) between the piezoelectric element (1) and the case (7) to allow the piezoelectric element (1) to be freely vibrate, the piezoelectric element (1) being merely placed on a bottom (8) of the case (7) but not fixed nor adhered thereon to allow the piezoelectric element (1) to be freely vibrated.
Inventors:
ZAMA KOICHI
INOE TAKESHI
INOE TAKESHI
Application Number:
JP16685794A
Publication Date:
November 10, 1999
Filing Date:
July 19, 1994
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
B06B1/06; H01L41/053; H01L41/107; H02N2/00; H03H9/02; H03H9/05; H03H9/10; (IPC1-7): H01L41/107; B06B1/06; H02N2/00; H03H9/02; H03H9/10
Attorney, Agent or Firm:
Naoki Kyomoto