| 摘要 |
PROBLEM TO BE SOLVED: To ensure hermetic sealing of the internal space by using a sealing member, the manufacturing cost of which is reduced for a sealing member consisting of an Au-Sn layer.SOLUTION: A body housing 11 is provided with a base 3 on which a crystal vibration chip 2 is mounted, and a lid 5 which is bonded to the base 3 with a sealing member 8 interposed therebetween and sealing the crystal vibration chip 2 hermetically. In the sealing member 8, a first intermetallic compound 81 composed of a plurality of materials mainly consisting of Sn and Cu, and a second intermetallic compound 82 composed of a plurality of materials mainly consisting of Ag and Sn are distributed uniformly. |
