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SMD quartz crystal resonator processing method and resonator thereof

A quartz crystal and processing method technology, applied in the field of resonators, can solve problems such as resonator burrs, unusability, damage, etc., and achieve the effects of improving high temperature and high humidity resistance, good protection effect, and saving water resources

Pending Publication Date: 2017-12-26
SICHUAN MDH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] Since the crack line on the front side of the ceramic plate will be slightly deformed after sintering, no matter how high the positioning accuracy of the laser cutting line on the back of the ceramic plate is, it is difficult to align with the crack line 18 on the front of the ceramic plate, causing the edge of a single resonator formed by the lobes to be easily There are problems such as burrs, beveled edges, and damage
[0015] If before the whole ceramic board is sintered, use a cutting knife that is strictly aligned up and down to cut the bottom and front of the whole ceramic board at the same time, forming two symmetrical cracked board lines, because the cracked board lines disconnect the electrodes between the bases. Wire connection, post-processing quartz crystal resonators cannot achieve electroplating
[0016] If after the processing of the quartz crystal resonator is completed, the cracked line on the front and back is cut, because the entire ceramic plate has been sintered and has a high hardness, it cannot be cut with an ordinary cutter, and laser lines must be used. It is difficult to ensure the symmetry of the upper and lower sides, and there are still problems such as burrs, bevels, and damage on the resonator behind the lobes

Method used

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  • SMD quartz crystal resonator processing method and resonator thereof
  • SMD quartz crystal resonator processing method and resonator thereof
  • SMD quartz crystal resonator processing method and resonator thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0081] Such as Figure 3-8 Shown, a kind of processing method of SMD quartz crystal resonator, at first provide the whole board resonator semi-finished product, described whole board resonator semi-finished product comprises the base whole board, the chip that is fixed on each base and covers the base whole board The entire cover plate 20 on the top; then cut the entire cover plate 20 on the entire plate resonator to form a plurality of base cover plates 20-1, and then spray on the upper surface and cut surface of each base cover plate 20-1 Protective layer; finally, the entire board resonator is detected and divided into single SMD quartz crystal resonators, including the following steps:

[0082] The processing steps of the semi-finished product of the whole board resonator are as follows:

[0083] 1), provide or process the whole base board

[0084] A base arranged in a matrix is ​​processed on the entire base plate, the back of the base is provided with four electrodes, ...

Embodiment 2

[0117] Such as Figure 1-2 As shown, the difference from Example 1 is that there is no need to carry out metallization treatment on the through hole, and there is no crack line on the back of the whole board of the base. The cracked board line on the front is the same as the base board processing technology in the prior art. Although the spraying process is used in this scheme to form a protective layer, there is no crack board line on the back of the base board. The surface effect of the latter single resonator is not good enough. Other steps are the same as those in Embodiment 1, and will not be repeated here.

[0118] The present invention also relates to an SMD quartz crystal resonator prepared by the above processing method, comprising a base and a base cover, the base is provided with a resonator chamber, and the front of the base is provided with a ring metal coating, the annular metal coating is covered with the metal cover plate, the upper surface and four sides of ...

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PUM

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Abstract

The invention relates to a processing method of a SMD quartz crystal resonator. The processing method comprises the following steps: firstly providing a complete board resonator semi-finished product, wherein the complete board resonator semi-finished product comprises a base complete board and a cover complete board covered on the base complete board; and then cutting the cover complete board on the complete board resonator to form single base cover boards, and spraying and coating protective layers on the upper surface and sections of each cover board, wherein the method for spraying and coating the protective layer comprises pretreatment process and spraying and coating process; the pretreatment process comprises cleaning, washing, air showering and drying; the spraying and coating process comprises the following steps: firstly spraying and coating the spraying and coating material on the upper surface and section of each base cover board of the resonator complete board by using an electrostatic spraying and coating process to form the coatings, and then performing curing treatment on the coatings to form the protective layers on the upper surface and the section of each base cover board. The processing method disclosed by the invention aims at improving the salt mist resistance and high temperature and high humidity resistance of the SMD quartz crystal resonator under the severe environment. The invention further relates to a resonator prepared by adopting the above-mentioned method.

Description

technical field [0001] The invention relates to a processing method for an SMD quartz crystal resonator and a resonator thereof, belonging to the technical field of resonators. Background technique [0002] SMD quartz crystal resonators are commonly used electronic devices, and their usage is increasing with the development of digital technology. However, at present, SMD quartz crystal resonators have technical obstacles in improving processing efficiency and processing quality in terms of device structure and processing technology. In addition, there are also environmental pollution problems in processing technology. [0003] The cover plate of the traditional single processing SMD quartz crystal resonator generally uses electroless nickel plating or electroplating nickel protective layer, and the cover plate of the existing whole plate processing SMD quartz crystal resonator is also formed by electroless nickel plating. [0004] Electroless nickel plating and electroplati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H9/05H03H9/10H03H9/19H03H3/02
CPCH03H3/02H03H9/0542H03H9/10H03H9/19
Inventor 黄屹李斌
Owner SICHUAN MDH TECH CO LTD
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