| 摘要 |
PROBLEM TO BE SOLVED: To provide a crystal resonator capable of maintaining its resonating characteristic and ensuring electrical connections between end surface electrodes, using a simple method. SOLUTION: A stacked crystal resonator includes: a framed crystal plate 2 the frame section 7, which surrounds a resonating section 6, and to which both of these resonating section and frame section are connected by connecting sections 8a, 8b; a first metallic film 11 and second metallic film 13 formed on both of the principal surfaces of the frame section 7; and a base and cover stacked on both of the principal surfaces of the framed crystal plate 2. In the stacked crystal resonator, a crystal plate end surface electrode 12 which is electrically connected to the first metallic film 11 is electrically connected to a crystal-plate auxiliary electrode 21, the crystal plate auxiliary electrode 21 is electrically connected by an eutectic alloy, while facing a base auxiliary electrode, the width of the frame section 7 of one side on one end side of the framed crystal plate 2, where the crystal plate auxiliary electrode 21 is formed, differs from the width of the frame section 7 of at least one other side, and a blocking film 22 which blocks flow of the eutectic alloy to exciting electrodes 5a, 5b, is provided on conducting paths 10a, 10b. COPYRIGHT: (C)2011,JPO&INPIT |
