| 摘要 |
A piezoelectric resonator device having a sandwich structure is provided, which can avoid gas generation and reduce the size or height. A crystal resonator 101 includes a crystal resonator plate 2, a first sealing member 3 and a second sealing member 4. A sealing-member-side first bonding pattern 321 and a sealing-member-side second bonding pattern 421, both to be bonded to the crystal resonator plate 2, are formed respectively on the first sealing member 3 and the second sealing member 4. On the crystal resonator plate 2, a resonator-plate-side first bonding pattern 251 to be bonded to the first sealing member 3 is formed on a first main surface 211 and a resonator-plate-side second bonding pattern 252 to be bonded to the second sealing member 4 is formed on a second main surface 212. The sealing-member-side first bonding pattern 321 is bonded to the resonator-plate-side first bonding pattern 251, and the sealing-member-side second bonding pattern 421 is bonded to the resonator-plate-side second bonding pattern 252, both by diffusion bonding. |
