| 摘要 |
PROBLEM TO BE SOLVED: To provide a crystal device capable of stably outputting an oscillation frequency of a crystal element without obstructing vibrations of a crystal vibration part of the crystal element.SOLUTION: The crystal device includes: a crystal element 120 having a rectangular crystal substrate 121, a first crystal frame part 122 provided on an outer peripheral edge of an upper surface of the crystal substrate 121, a second crystal frame part 123 provided on an outer peripheral edge of a lower surface of the crystal substrate 121 and an electrode 124 for excitation provided on the upper surface of the crystal substrate 121 surrounded by the first crystal frame part 122 and the lower surface of the crystal substrate 121 surrounded by the second crystal frame part 123; a substrate 110 which is joined to the inner side of the lower end of the second crystal frame part 123 through a sealing member 140, and covers an area surrounded by the second crystal frame part; and an electrode terminal G for external connection which is provided at an interval from the outer peripheral edge of the substrate 110 on the outer side of the lower end of the second crystal frame part 123, and electrically connected with the electrode 124 for excitation. |
