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Processing method of low-resistance cylindrical crystal oscillator

A processing method and cylindrical crystal technology, applied in the direction of electrical components, impedance networks, etc., can solve the problems of large resistance of finished products, affecting use, low qualification rate, etc., and achieve the effect of improving performance, production efficiency, and qualification rate.

Pending Publication Date: 2020-04-03
HUNAN JIAYEDA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many problems in the processing of cylindrical crystal oscillators. During the processing of existing cylindrical crystal oscillators, due to the existence of the process design itself, the resistance of the finished product is large, and the pass rate is not high, which affects the use.

Method used

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  • Processing method of low-resistance cylindrical crystal oscillator

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Experimental program
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Effect test

Embodiment 1

[0025] A processing method of a low-resistance cylindrical crystal oscillator, the processing method of the low-resistance cylindrical crystal oscillator comprises the steps of:

[0026] (1) Cutting, select qualified quartz wafers, select qualified quartz crystal raw materials for cutting, grind the cut quartz slices at a fixed angle, and cut and grind the quartz slices into quartz crystal rods;

[0027] (2) Silver plating, the surface of the quartz crystal rod produced in step (1) is coated with a layer of pure silver, and the thickness of the silver plating is 10nm to 15nm;

[0028] (3) One-time dispensing, dot crystal oscillator silver glue on the base, and fix the pins and quartz crystal rods through the crystal oscillator silver glue;

[0029] (4) Secondary dispensing, compounding the anisotropic conductive adhesive on the surface of the crystal silver glue in step (3), and completing the second dispensing process;

[0030] (5) Test, measure the output frequency of the c...

Embodiment 2

[0043] A processing method of a low-resistance cylindrical crystal oscillator, the processing method of the low-resistance cylindrical crystal oscillator comprises the steps of:

[0044] (1) Cutting, select qualified quartz wafers, select qualified quartz crystal raw materials for cutting, grind the cut quartz slices at a fixed angle, and cut and grind the quartz slices into quartz crystal rods;

[0045] (2) Silver plating, the surface of the quartz crystal rod produced in step (1) is coated with a layer of pure silver, and the thickness of the silver plating is 13nm to 20nm;

[0046] (3) One-time dispensing, dot crystal oscillator silver glue on the base, and fix the pins and quartz crystal rods through the crystal oscillator silver glue;

[0047] (4) Secondary dispensing, compounding the anisotropic conductive adhesive on the surface of the crystal silver glue in step (3), and completing the second dispensing process;

[0048] (5) Test, measure the output frequency of the c...

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Abstract

The invention discloses a processing method of a low-resistance cylindrical crystal oscillator. The processing method of the low-resistance cylindrical crystal oscillator comprises the following steps: carrying out cutting; carrying out silver plating: specifically, plating the surface of a manufactured quartz crystal bar with a layer of pure silver, wherein the silver plating thickness ranges from 10 nm to 20 nm; carrying out primary dispensing; carrying out secondary dispensing; performing testing; carrying out sealing and welding; carrying out sealing performance checking: checking whetherthe sealed and welded product has an air leakage phenomenon or not; carrying out marking: marking a mark on the outer surface of the cylindrical crystal oscillator through laser; and carrying out quality detection. The processing method of the low-resistance cylindrical crystal oscillator is simple to operate; an anisotropic conductive adhesive and a crystal oscillator silver adhesive are compounded through secondary processing such that the connection stability of the connection positions of the pins and the quartz crystal bar is improved, meanwhile, the basic output frequency deviation of the cylindrical crystal oscillator is greatly improved, the use performance of the cylindrical crystal oscillator is improved, the production efficiency of the cylindrical crystal oscillator is improved, meanwhile, the resistance of finished products is greatly reduced, the percent of pass of the cylindrical crystal oscillator is increased, and the cylindrical crystal oscillator has good market value and is suitable for application and popularization.

Description

technical field [0001] The invention relates to a processing method of a cylindrical crystal oscillator, in particular to a processing method of a low-resistance cylindrical crystal oscillator, and belongs to the technical field of application of piezoelectric crystal elements. Background technique [0002] Cylindrical crystal oscillators refer to crystal oscillators whose appearance is similar to that of a tuning fork. Applications include clocks and watch movements, mobile phones, tablet computers, microcomputers, calculators, automatic control of home appliances, and industrial automatic control. At present, my country's annual output of cylindrical crystal oscillators exceeds 4 billion, accounting for about 40% of the world's output. [0003] There are many problems in the processing of cylindrical crystal oscillators. During the processing of existing cylindrical crystal oscillators, due to the existence of the process design itself, the finished product has a large res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H3/02
CPCH03H3/02
Inventor 何龙施小罗
Owner HUNAN JIAYEDA ELECTRONICS