Abstract

The adjustment of the natural frequency of a micro crystal resonator (MCR) is the key requirement in its manufacturing, which determines the actual performance of the product. Laser processing is a new method for MCR frequency modulation, and its process parameters directly affect the frequency modulation effect. Aiming at the laser processing equipment for MCR frequency modulation, the structure of the laser processing control system for MCR frequency modulation is designed by analyzing the requirements of a laser processing control system. The working flow of the laser processing control system for MCR frequency modulation is studied, the motion control method of the laser processing platform for MCR frequency modulation is proposed, and the laser processing control system for MCR frequency modulation is designed. By analyzing the laser characteristics for MCR frequency modulation, an orthogonal experiment is carried out to optimize the laser processing parameters for MCR frequency modulation.

Highlights

  • The micro crystal resonator (MCR) is an electronic device used to provide clock frequency for electronic products

  • The analysis showed that the fuzzy PID controller has better effects in dynamic response

  • In order to ensure that the electrode silver layer of the MCR can be quickly etched without excessive black edges, according to the experimental data, it is determined that the laser power is between 6 W and 9 W, the laser frequency is between 200 KHz and 500 KHz and the laser processing speed is between 200 mm/s and 800 mm/s

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Summary

Introduction

The micro crystal resonator (MCR) is an electronic device used to provide clock frequency for electronic products. According to the difference between the actual frequency and the target frequency of the MCR, the frequency of the MCR is adjusted by the laser processing module. Jingyu Shao [7] proposed and realized two laser etching methods, laser thinning and laser etching pattern, to finely tune the frequency of quartz crystal resonant devices. The laser processing control system for MCR frequency modulation realizes multi-objective MCR frequency modulation control and provides a reference for multi-objective micro-machining control of other electronic products. Optimization of process parameters for MCR frequency modulation provides a reference for laser micro-machining experiments and parameter selection of other electronic components. In order to design the laser processing control system for MCR frequency modulation, optimize the process parameters and improve the frequency modulation qualification rate and processing efficiency of the MCR, the remaining contents of this paper are arranged as follows. The process parameters of the control system are optimized by an orthogonal experiment and the optimized results are verified by experiments

Laser Processing Method for MCR Frequency Modulation
Performance Requirements of Laser Processing Control System for MCR
Workflow of Laser Processing Control System for MCR Frequency Modulation
Linear Motor Mathematical Model of Laser Processing Carrier Platform for MCR
Carrier Platform Control Method of Laser Processing for MCR Frequency
Design of Laser Processing Control System for MCR Frequency Modulation
Laser Characteristics Analysis of MCR Frequency Modulation
Experimental Verification of Laser Processing Optimal Parameters for MCR
Findings
Conclusions
Full Text
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