Patent ID: 8212453
Filing Date: 2012-07-03
Classification: H01L,H03H,Y10T

Abstract:
1. A piezoelectric resonator device that generates piezoelectric resonance, comprising: a piezoelectric resonator plate made of a piezoelectric material and having driving electrodes formed on both its major surfaces; a first sealing member that hermetically seals the driving electrode formed on one of the major surfaces of the piezoelectric resonator plate; and a second sealing member that hermetically seals the driving electrode formed on the other major surface of the piezoelectric resonator plate, wherein the piezoelectric resonator plate and the first sealing member are bonded together with a bonding material, and the piezoelectric resonator plate and the second sealing member are bonded together with a bonding material; and a multiple-surface bonding portion and a spread preventing portion are provided in at least either of a bonding area between the piezoelectric resonator plate and the first sealing member and a bonding area between the piezoelectric resonator plate and the second sealing member, the multiple-surface bonding portion allowing the bonding material to be bonded to a plurality of surfaces of different surface orientations, the spread preventing portion being located on an outer side of the multiple-surface bonding portion and preventing a bonding region bonded to the bonding material from being enlarged.