SURFACE MOUNT TYPE QUARTZ CRYSTAL DEVICE

摘要

A surface mount type quartz crystal device according to a first aspect of the disclosure includes a ceramic package, a pedestal blank, a quartz-crystal vibrating piece. The pedestal blank is placed within the ceramic package via a conductive adhesive. The quartz-crystal vibrating piece is placed on the pedestal blank. The conductive adhesive is formed along an outer peripheral side of the pedestal blank so as to avoid overlap with the excitation electrode viewed in a normal direction of the excitation electrode. The pedestal blank is formed to avoid a region where a distance from the quartz-crystal vibrating piece is equal to or smaller than a size of a clearance between the pedestal blank and the quartz-crystal vibrating piece at the outer peripheral side, in a region where the excitation electrode faces at the pedestal blank side viewed in the normal direction.

主权项

1. A surface mount type quartz crystal device, comprising:
a ceramic package; a pedestal blank formed of a quartz-crystal material, the pedestal blank being placed within the ceramic package via a conductive adhesive; a quartz-crystal vibrating piece formed in a rectangular shape having a long side and a short side, the quartz-crystal vibrating piece including a pair of excitation electrodes and a pair of extraction electrodes, the pair of extraction electrodes being extracted from the pair of excitation electrodes to one end of the quartz-crystal vibrating piece in an extending direction of the long side, the quartz-crystal vibrating piece being placed on the pedestal blank, wherein the conductive adhesive is formed along an outer peripheral side of the pedestal blank so as to avoid overlap with the excitation electrode viewed in a normal direction of the excitation electrode, and the pedestal blank is formed to avoid a region where a distance from the quartz-crystal vibrating piece is equal to or smaller than a size of a clearance between the pedestal blank and the quartz-crystal vibrating piece at the outer peripheral side, in a region where the excitation electrode faces at the pedestal blank side viewed in the normal direction.