| 摘要 |
PROBLEM TO BE SOLVED: To provide a crystal device with high reliability in which solder is prevented from breaking or peeling owing to a difference in coefficient of thermal expansion. SOLUTION: The crystal device for surface mounting which is equipped with a primary container body containing at least a crystal piece and made of laminated ceramic, has at least a pair of bottom surface electrodes formed in one body when the laminated ceramic is baked on an external bottom surface of the primary container body, and is fixed to a set substrate with solder is so constituted that lead terminals made of flat plate metals each have one end side locally connected to the corresponding bottom surface electrode and the other end side projected from the outer periphery of the primary container body. COPYRIGHT: (C)2007,JPO&INPIT
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