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Tuning fork-type piezoelectric vibration piece, and tuning fork-type piezoelectric vibrator using said tuning fork-type piezoelectric vibration piece

A piezoelectric vibrating piece, tuning fork type technology, applied in the direction of electromechanical clocks, electric windings, electrical components, etc., to prevent poor conduction

Active Publication Date: 2019-09-13
DAISHINKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a result, there may be defective products with characteristics that deviate from frequency specifications, etc.

Method used

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  • Tuning fork-type piezoelectric vibration piece, and tuning fork-type piezoelectric vibrator using said tuning fork-type piezoelectric vibration piece
  • Tuning fork-type piezoelectric vibration piece, and tuning fork-type piezoelectric vibrator using said tuning fork-type piezoelectric vibration piece
  • Tuning fork-type piezoelectric vibration piece, and tuning fork-type piezoelectric vibrator using said tuning fork-type piezoelectric vibration piece

Examples

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Embodiment Construction

[0052] Hereinafter, embodiments of the present invention will be described by taking a tuning-fork type crystal vibrator as an example.

[0053] figure 1 It is a schematic plan view of an assembly of a tuning-fork type crystal vibrating piece (hereinafter simply referred to as a vibrating piece) according to an embodiment of the present invention.

[0054] The vibrating piece 1 includes a base 2 , a pair of vibrating arms 31 and 32 , and a protrusion 4 . A plurality of vibrating pieces 1 are simultaneously molded at one time from a rectangular crystal wafer 10 (hereinafter simply referred to as a wafer) in a planar view. Furthermore, in figure 1 In the description, the through holes formed in the base 2 of each vibrating piece 1, or the grooves formed in the front and back principal surfaces of the vibrating arms 31, 32, or the various electrodes formed in the vibrating arms 31, 32 and the base 2 is omitted, and only shows the external shape of the vibrating piece 1 .

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Abstract

Both main surface electrodes on the front and back of respective vibration arms are respectively electrically connected via respective through-electrodes penetrating through the front and back surfaces of a base portion. One main surface electrode of both main surface electrodes on the front and back of the respective vibration arms is electrically connected to a side surface electrode via a routing wire formed to pass through a fork portion between the vibration arms, and is electrically connected to the other main surface electrode of both main surface electrodes via the side surface electrode.

Description

technical field [0001] The present invention relates to a tuning fork type piezoelectric vibrator widely used as a clock source for clocks and the like. Background technique [0002] Tuning fork type crystal resonators become, for example Figure 9 The tuning-fork-shaped crystal vibrating piece 7 (hereinafter simply referred to as the vibrating piece 7) shown in the shape of a tuning fork is bonded to the inside of a box-shaped container (not shown) with an upper opening through a bonding material, and the opening of the container is made of a flat plate. Shaped cover (not shown) hermetically sealed structure. Furthermore, for the sake of illustration, Figure 9 In the description, the main surface on the front side among the two main surfaces of the front and back of the vibrating piece 7 will be described. [0003] Such as Figure 9 As shown, the vibrating piece 7 includes: a base 8; a pair of vibrating arms 91, 92 extending in the same direction from one end of the base ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H9/19H03H9/215
CPCH03H9/215H03H9/1021G04C3/12H03H9/132
Inventor 山下弘晃
Owner DAISHINKU CORP
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