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Quartz resonator, quartz resonator package, and quartz oscillator

A technology of quartz vibrator and quartz plate, applied in power oscillators, electrical components, impedance networks, etc., can solve problems such as different uses, purposes, large specific gravity, and high rigidity

Inactive Publication Date: 2007-10-10
NIHON DEMPA KOGYO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high specificity of Au, which is about 7.3 times (18.9) that of quartz, and the high rigidity, it is urgently required that the electromechanical coupling coefficient (the coefficient indicating the ability to convert electrical energy into mechanical (tuning fork vibration) energy) be small and can be further reduced. Electrode material with CI value
[0007] In addition, the quartz vibrator assembly disclosed in Patent Document 1 is anodically connected to a cover formed of glass containing migratable ions such as nanoions and a package substrate formed of a silicon substrate. Although the silicon material used in the present invention is disclosed, the However, its use and purpose are completely different, so the technology disclosed in Patent Document 1 cannot solve the above-mentioned problems

Method used

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  • Quartz resonator, quartz resonator package, and quartz oscillator
  • Quartz resonator, quartz resonator package, and quartz oscillator
  • Quartz resonator, quartz resonator package, and quartz oscillator

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Embodiment Construction

[0020] The tuning-fork-type crystal resonator shown in FIG. 1 described in the background art can also be applied to the crystal resonator of this embodiment. The shape of this quartz vibrator can be described in detail as follows: the quartz vibrator body (quartz plate) has: a substantially square base portion 1 having a notch 11 cut into a rectangle at the upper side of both sides, and a Two (a pair) of vibrating arm parts 2 (2a, 2b) extend in parallel at a distance from each other on the upper end side, and the overall shape is a tuning fork-shaped quartz plate. In addition, on the main surfaces of the front side and the back side of the vibrating arm parts 2 (2a, 2b), respectively, there are formed, from the bottom end portion of these vibrating arm parts 2 (2a, 2b) toward the front end side, respectively formed in the longitudinal direction. The groove portions 31, 32 are bisected. The grooves 31 and 32 function to increase the strength of the electric field formed in th...

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Abstract

To provide a tuning fork type quartz resonator having a low CI value and a quartz resonator package provided with the quartz resonator. A silicon material lower in specific gravity and stiffness than those of conventionally used gold (Au) is used as an electrode material for an electrode pattern such as excitation electrodes for making the tuning fork type quartz resonator generate tuning fork oscillation. By this structure, the quartz resonator is made easier to oscillate so that the oscillation loss (CI value) can be lowered during conversion of electric energy into tuning fork oscillation.

Description

technical field [0001] The present invention relates to a tuning-fork type quartz vibrator with two vibrating arm parts protruding from a base part, a quartz vibrator assembly and a quartz oscillator containing the quartz vibrator. Background technique [0002] The tuning-fork type quartz vibrator has been used as a signal source for watch timing because it is small, cheap, and power-saving. In recent years, it has been used as a synchronization signal source for portable electronic devices, so its use is further expanding. [0003] FIG. 1 shows an example of the configuration of a tuning fork type quartz vibrator. On the tuning fork type quartz vibrator, a pair of vibrating arm parts 2a and 2b are provided on the base part 1, and a pair of vibrating arm parts 2a and 2b are provided on both main surfaces of each vibrating arm part 2a and 2b. Grooves 31, 32. Excitation electrodes are provided on the grooves 31, 32 and the side surfaces of the respective vibrating arm portion...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03B5/32H03H9/19
CPCH03H9/215H03H3/04H03H2003/026H03H9/1021
Inventor 梅木三十四
Owner NIHON DEMPA KOGYO CO LTD
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