What companies can do failure analysis? Briefly describe its purpose and significance

Date：2021-10-12 13:28:37Views：1145

What companies can do failure analysis? Chuangxin testing team is composed of dozens of professional engineers and industry elites. It has built three standardized laboratories with an area of more than 1000 square meters. It has invested heavily in international advanced testing equipment and strictly followed international testing standards and methods. It has obtained CNAs certification and international mutual recognition qualification. Failure analysis is an activity to simulate and reproduce the failure phenomenon, find out the cause of failure and dig out the failure mechanism through analysis and verification according to the failure mode and phenomenon. It has strong practical significance in improving product quality, technology development and improvement, product repair and arbitration of failure accidents. The methods are divided into destructive analysis, nondestructive analysis, physical analysis, chemical analysis and so on.

Failure analysis can be divided into complete machine failure analysis and parts failure analysis, and failure analysis can also be carried out according to product development stage, failure occasion and analysis purpose. The working procedure of failure analysis is usually divided into clear requirements, investigation and research, analysis of failure mechanism and countermeasures. The core of failure analysis is the analysis and disclosure of failure mechanism. Failure mechanism is a physical or chemical process that leads to the failure of parts, components and materials. The inducing factors of this process are internal and external. When studying the failure mechanism, we usually start with the external inducing factors and failure manifestations, and then study the more hidden internal factors.

The purpose of failure analysis of electronic components is to confirm the failure phenomenon of electronic components with the help of various test and analysis technologies and analysis procedures, distinguish their failure mode and failure mechanism, determine the cause of their ultimate failure, put forward suggestions for improving design and manufacturing process, prevent the recurrence of failure and improve the reliability of components.

Failure analysis is an important part of product reliability engineering. Failure analysis is widely used to determine the causes of production problems in the process of development and production, identify reliability related failures in the process of testing, and confirm the on-site failure mechanism in the process of use. In the development stage of electronic components, failure analysis can correct errors in design and development and shorten the development cycle; In the production, testing and use stage of electronic components, failure analysis can find out the failure causes of electronic components and the responsible party causing the failure of electronic components.

At present, failure analysis is mainly used in the following fields:

1. Failure analysis of electromechanical equipment, machinery and auto parts

2. Comprehensive evaluation of serviceability of new metal materials

3. Manufacturing process evaluation and technical support of metal products

4. Quality appraisal of metal materials and electromechanical products

5. Service evaluation and repair scheme of valuable equipment in service

6. Judicial expertise related to metal materials and metal products

According to the results of failure analysis, the component manufacturer shall improve the design and production process of components, the component user shall improve the circuit board design, and improve the testing, test premise and procedure of components or the whole machine, and even replace the component suppliers with different grid based on this. Therefore, failure analysis is of great significance to speed up the development of electronic components and improve the yield and reliability of components and complete machines.

In a word, failure analysis is of great significance to the production and use of components. The failure of components may occur in all stages of their life cycle, in all links from product development stage, production stage to use stage. The failure mode is determined by analyzing the failure products of process waste, early failure, test failure and field failure Analyze the failure mechanism and finally find out the failure cause. Therefore, the user of components must refer to the results of failure analysis in the selection of components and the whole machine plan, and the manufacturer of components must refer to the results of failure analysis in the process of product reliability scheme design. Through failure analysis, the failure mode can be identified, the failure mechanism can be clarified, improvement measures can be put forward and fed back to use and production, which will improve the reliability of components and equipment.