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Patent Searching and Data


Title:
PIEZOELECTRIC DEVICE
Document Type and Number:
Japanese Patent JP2015080040
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a compact and low-profile piezoelectric device that allows reducing manufacturing processes.SOLUTION: A piezoelectric device (100) includes: a piezoelectric vibration piece (10); an integrated circuit element (20) including a built-in oscillation circuit for oscillating the piezoelectric vibration piece or a built-in thermistor for measuring temperature around the piezoelectric vibration piece; a wiring substrate (130) in which the piezoelectric vibration piece and the integrated circuit element are mounted on an upper surface having power-supply wiring and ground wiring, and having external terminals including a power-supply terminal and a ground terminal on a lower surface on the opposite side of the upper surface; and a box-shaped lid (140) airtightly sealing the piezoelectric vibration piece and the integrated circuit element. The ground wiring on the upper surface extends to the ground terminal (134d) on the lower surface via a side surface connecting the upper surface and the lower surface, a metal conductor (139) is formed on the outer periphery of the upper surface so as to cross the ground wiring, and an end portion of the lid is welded to the metal conductor.

Inventors:
GEN KANTO
IGARI HAYATO
Application Number:
JP2013214870A
Publication Date:
April 23, 2015
Filing Date:
October 15, 2013
Export Citation:
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Assignee:
NIHON DEMPA KOGYO CO
International Classes:
H03B5/32
Attorney, Agent or Firm:
伊藤 信和