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Piezoelectric vibrating device

A piezoelectric vibration and device technology, applied in electrical components, impedance networks, etc., can solve the problems of expensive packages and piezoelectric vibrators, and achieve good frequency and temperature characteristics and reduce costs.

Pending Publication Date: 2021-08-10
DAISHINKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned piezoelectric vibrator is often packaged by bonding a metal or glass cover to a ceramic base, so the package becomes expensive, and the piezoelectric vibrator also becomes expensive.

Method used

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  • Piezoelectric vibrating device
  • Piezoelectric vibrating device
  • Piezoelectric vibrating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. In this embodiment, description will be given by applying to a crystal resonator as a piezoelectric vibrating device.

[0040] figure 1 is a schematic perspective view of a crystal oscillator according to an embodiment of the present invention, figure 2 It is a schematic top view of it. image 3 is along the figure 2 A schematic cross-sectional view of line A-A, Figure 4 is its rough bottom view. Furthermore, in image 3 and the following 5A to 5E In the figure, the thickness of the resin film or the like is shown exaggeratedly for convenience of explanation.

[0041] The crystal resonator 1 of this embodiment includes a crystal vibration plate 2 , and a first resin film 3 as a first sealing member that covers and seals one of the two main surfaces of the front and rear of the crystal vibration plate 2 . , and a second resin film 4 as ...

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PUM

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Abstract

A piezoelectric vibrating device of the present invention is provided with: a piezoelectric vibration plate that has first and second excitation electrodes respectively formed on both main surfaces, and has first and second mounting terminals respectively connected to the first and second excitation electrodes; and first and second sealing members respectively joined to both main surfaces of the piezoelectric vibration plate so as to respectively cover the first and second excitation electrodes of the piezoelectric vibration plate. At least one of the first and second sealing members is a film made of resin.

Description

technical field [0001] The present invention relates to piezoelectric vibrating devices such as piezoelectric vibrators. Background technique [0002] As a piezoelectric vibrating device, a surface mount type piezoelectric vibrator is widely used. In this surface mount piezoelectric vibrator, as described in Patent Document 1, for example, electrodes derived from excitation electrodes on both surfaces of a piezoelectric vibrating piece (crystal piece) are fixed to a ceramic material with a conductive adhesive. , on the holding electrode in the box-shaped base with the upper opening, so that the piezoelectric vibrating piece is loaded on the base. In this way, the lid body is joined to the opening of the base on which the piezoelectric vibrating reed is mounted, and hermetically sealed. In addition, a mounting terminal for mounting the piezoelectric vibrator is formed on the outer bottom surface of the base. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2005-18...

Claims

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Application Information

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IPC IPC(8): H03H3/02H03H9/02H03H9/19
CPCH03H3/02H03H9/19H03H9/0595H03H9/1035H03H9/1042H03H2003/022
Inventor 大西学中村孝治古城琢也长谷川幸平
Owner DAISHINKU CORP