| 摘要 |
PROBLEM TO BE SOLVED: To obtain a piezoelectric resonance component which can securely secure a gap for not disturbing the vibration of a piezoelectric vibration part, hardly has characteristic variation due to stress generated by temperature varia tion at reflow time, and hardly cause the wire breaking of an external electrode caused by an adhesive layer. SOLUTION: External substrates 3 and 4 are stacked on both the surfaces of a piezoelectric substrate 2 where a piezoelectric vibration part is constituted across adhesives and an external electrode is formed on the external surface of the stack body to obtain a piezoelectric component. In this case, the piezoelectric resonator component has a 1st layer 24 which is formed of a soft adhesive with D60 Shore hardness after setting without being exposed at an external electrode formation part on the stack body flank, a 2nd layer 25 formed of a hard adhesive having D60 Shore hardness, and a 3rd layer 23 which is formed of an adhesive having more than 3.0×105 mPa.s viscosity at 25 deg.C before setting and arranged between the external electrode formation flank part of the stack body and the 1st layer 25. |
