Patent ID: 9548717
Date: 2017-01-17
CPC Classifications: H03H

Claim:
1. A piezoelectric resonator device, comprising: a base for mounting a piezoelectric resonator plate; and a lid for hermetically sealing the piezoelectric resonator plate, wherein the piezoelectric resonator device is constituted by: a bottom portion; a first wall portion extending upward from the bottom portion along an outer periphery of one main surface of the base; and a second wall portion extending downward from the bottom portion along an outer periphery of the other main surface of the base, wherein a first cavity is formed by being surrounded by the bottom portion and the first wall portion so as to mount the piezoelectric resonator plate, and a second cavity is formed by being surrounded by the bottom portion and the second wall portion so as to mount a temperature sensor unit as a temperature detecting element, wherein, on a bottom surface of the second cavity, exposed electrodes that intersect at least an internal wall surface of the second wall portion are formed so as to be exposed within the second cavity, the exposed electrodes including a pair of temperature sensor electrode pads to which the temperature sensor unit is bonded via a fluid conductive bonding material, wherein the conductive bonding material is formed so as to cover an entire surface of the exposed electrodes including the temperature sensor electrode pads to which the temperature sensor unit is bonded, wherein the pair of temperature sensor electrode pads are formed so as to have a same shape, and wherein, when nearest sides facing each other of the respective temperature sensor electrode pads in the second cavity are each referred to as a near end edge, and farthest sides opposed to each other of the respective temperature sensor electrode pads in the second cavity are each referred to as a far end edge, and when a distance from the near end edge to the far end edge of each of the temperature sensor electrode pads is represented by D