Anti-vibration reliability design method and system for micro-assembled components

Abstract

The invention relates to a design method and a system for the anti-vibration reliability of a micro assembly component. The design method comprises the following steps of building a vibration characteristic simulation finite element model according to a structure of the micro assembly component; obtaining a corresponding relation between different weld joint widths and a first natural frequency according to the vibration characteristic simulation finite element model, and further acquiring a weld joint critical width corresponding to a preset critical frequency; calculating to obtain welding critical power and a welding electrode critical angle according to the weld joint critical width, designing seam welding key process parameters of the micro assembly component, and carrying out seam welding processing on the micro assembly component according to the determined welding critical power and the welding electrode critical angle. According to the design method, the vibration characteristic simulation finite element model is built to carry out vibration simulative emulation to confirm the weld joint critical width, and the seam welding key process parameters can be confirmed by adopting the weld joint critical width as a criterion, so that compared with the traditional micro assembly component design method, the anti-vibration reliability of the micro assembly component is improved.

Description

technical field [0001] The invention relates to the technical field of electronic device reliability design, in particular to a vibration-resistant reliability design method and system for micro-assembled components. Background technique [0002] With the development of science and social progress, the requirements for the integration of electronic products are getting higher and higher. Micro-assembly components refer to high-density integrated functional devices that encapsulate electronic components with metal and other materials, which can protect the electronic components in them from atmospheric water vapor corrosion. The current micro-assembly components mainly use parallel seam welding process for package welding. [0003] In order to ensure the anti-vibration reliability of micro-assembly components, the product should optimize the welding structure of the parallel seam welded metal package shell during the research and development stage to avoid the risk of resona...

AI Technical Summary

Problems solved by technology

The traditional parallel seam welding optimization design method for micro-assembly components is carried out for the airtightness of the component products and the applicability of the seam welding process. Through process tests, the angle of the seam welding electrode and the width of the weld seam are optimized to meet the air-tightness requirements of the micro-assembly components. However, it cannot eliminate the risk of cracking caused by resonance of the metal package shell in a vibration environment, and has the disadvantage of low vibration resistance reliability

Images