| 摘要 |
PROBLEM TO BE SOLVED: To provide a package for a piezoelectric oscillation device which is low in costs and capable of taking an EMI countermeasure and improves the reliability of the connection of the package and a metallic cover. SOLUTION: A surface mounted quartz oscillator consists of a ceramic package 1 which has a rectangular paralelepiped shape as a whole and has a recessed part opening its upper part, a rectangular quartz vibrating plate 3 being a piezoelectric vibration element to be housed in the package and an inversely recessed metallic cover 2 to be connected with the opening part of the package. The opening end part 21 of the metallic cover 2 is mounted on the metallic layer 11 of the package to seal the part 21 airtight with a resin adhesive S2 in this state.
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