Piezoelectric quartz crystal wafer with single convex structure

A piezoelectric quartz and wafer technology, applied in the direction of electrical components, impedance networks, etc., can solve the problems of poor stability, high cost, and low repeatability of the rolling process, and achieve enhanced energy trapping effect, improved consistency, and reduced The effect of parasitic vibration

Inactive Publication Date: 2015-10-28
CHENGDU TIMEMAKER CRYSTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the poor stability and low repeatability of the barrel grinding process, the cost has remained high. Therefore, the quartz wafer technology needs to be improved urgently

Method used

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  • Piezoelectric quartz crystal wafer with single convex structure
  • Piezoelectric quartz crystal wafer with single convex structure
  • Piezoelectric quartz crystal wafer with single convex structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as Figure 1~4 As shown, a piezoelectric quartz wafer with a single convex structure, the quartz wafer adopts AT cut type, this cut type is commonly used in quartz crystal resonators, wherein the long side of the wafer is parallel to the X axis, and the X axis is the quartz crystal The electrical axis, the short side is parallel to the Z' axis, and the thickness direction is parallel to the Y' axis. It is not excluded that the long side of the quartz wafer is parallel to the Z' axis, the width is parallel to the X axis, and the thickness direction is parallel to the Y' axis. The piezoelectric quartz wafer includes a central component 1, a protective frame 2 and a connecting portion 3, the materials of the central component 1, the protective frame 2 and the connecting portion 3 are all quartz, and the central component 1 and the protective frame 2 are both rectangular, The protective frame 2 plays the role of supporting and encapsulating connection. The protective ...

Embodiment 2

[0041] Such as Figure 7~9 As shown, the difference between the second embodiment and the first embodiment is that there are two connecting parts 3 connected between any short side of the protective frame 2 and the central member 1, and the central member 1 is added to the two connecting parts 3 And the mechanical strength between the protective frame 2.

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Abstract

The invention discloses a piezoelectric quartz crystal wafer with a single convex structure. The piezoelectric quartz crystal wafer comprises a central component (1), a protecting frame (2) and a connecting part (3). A cavity is arranged in the protecting frame (2); the central component (1) is arranged in the cavity; a boss (4) is arranged at the top surface of the central component (1); through grooves A (5) are formed among the two long sides of the protecting frame (2) and the two long sides of the central component (1); through grooves B (6) are formed among the two short sides of the protecting frame (2) and the two short sides of the central component (1); the through grooves A (5) are communicated with the through grooves B (6). The connecting part (3) is arranged at any one of the through groove B (6). The piezoelectric quartz crystal wafer of the invention has the following benefits: the piezoelectric quartz crystal wafer of the invention could be used for performing batch production to the small quartz crystal wafer, weakening parasitic vibration generated by the edge, and strengthening energy trapping effect of the centre of the quartz crystal wafer, thereby improving working accuracy and greatly improving consistency of the product.

Description

technical field [0001] The invention relates to the technical field of piezoelectric quartz wafer structure, in particular to a piezoelectric quartz wafer with a single convex structure. Background technique [0002] At present, a quartz crystal resonator is generally composed of a piezoelectric quartz wafer and a packaging shell, wherein the piezoelectric quartz wafer is rectangular or circular, and the packaging shell is made of ceramics, glass, or the like. Electrodes need to be vapor-deposited on the upper and lower sides of the piezoelectric quartz wafer, and the electrodes are connected to the base pins in the package shell through the leads of the sealed package. The AC voltage can be connected to the upper and lower electrodes of the quartz wafer through the pins, so that the quartz wafer produces an inverse piezoelectric effect, thereby generating oscillation. Quartz crystal resonators are widely used in electronic industries such as mobile electronic equipment, mo...

Claims

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Application Information

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IPC IPC(8): H03H9/19
CPCH03H9/19H03H9/02023H03H9/215
Inventor 叶竹之陆旺雷晗
Owner CHENGDU TIMEMAKER CRYSTAL TECH
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