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Novel piezoelectric quartz wafer with dual-convex structure and machining process thereof

A technology of piezoelectric quartz and wafers, applied in the manufacture/assembly of piezoelectric devices/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, piezoelectric/electrostrictive devices, etc., can solve the cost Problems such as high level, low repeatability, and poor stability of the rolling process can achieve the effect of enhancing energy trapping effect, improving consistency, and improving manufacturing efficiency

Inactive Publication Date: 2015-10-21
CHENGDU TIMEMAKER CRYSTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Novel piezoelectric quartz wafer with dual-convex structure and machining process thereof
  • Novel piezoelectric quartz wafer with dual-convex structure and machining process thereof
  • Novel piezoelectric quartz wafer with dual-convex structure and machining process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1~4 As shown, a new type of piezoelectric quartz wafer with biconvex structure, the quartz wafer adopts AT cut type, this cut type is commonly used in quartz crystal resonators, in which the long side of the wafer is parallel to the X axis, and the X axis is the quartz The electrical axis of the crystal, 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 member 1, a protective frame 2 and a connecting part 3. The central member 1, The materials of the protective frame 2 and the connecting part 3 are both quartz, and the central member 1 and the protective frame 2 are both in a rectangular shape, and a cavity is arranged in the protective frame 2, and the central component 1 is arran...

Embodiment 2

[0051] 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 novel piezoelectric quartz wafer with a dual-convex structure. The novel piezoelectric quartz wafer comprises a central member (1), a protection frame (2) and connection parts (3), wherein a die cavity is formed in the protection frame (2); the top surface of the central member (1) is provided with a boss I (4); the bottom surface of the central member (1) is provided with a boss II (5); straight slots A (6) are formed between the two long edges of the protection frame (2) and the two long edges of the central member (1); straight slots B (7) are formed between the two short edges of the protection frame (2) and the two short edges of the central member (1); the straight slots A (6) are communicated with the straight slots B (7); and the connection parts (3) are arranged in any straight slot B (7). The invention has the beneficial effects that small-sized quartz wafers can be produced in batches; parasitic vibration generated on edges is weakened; the energy trapping effect in the center of the quartz wafer can be enhanced; the machining accuracy is increased; and the consistence of a product is improved greatly.

Description

technical field [0001] The invention relates to the technical field of piezoelectric quartz wafer structure, in particular to a novel piezoelectric quartz wafer with double-convex structure and its processing technology. 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 ...

Claims

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Application Information

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IPC IPC(8): H03H3/02
CPCH03H3/02H10N30/20H10N30/05H10N30/06H10N30/706
Inventor 叶竹之陆旺雷晗
Owner CHENGDU TIMEMAKER CRYSTAL TECH
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