Type and purpose of electronic product reliability test report

Date：2022-03-04 13:41:00Views：1194

The development of reliability projects can promote and promote the development of product design, manufacturing, use, materials, processes, equipment and management, and raise electronic components and other electronic products to a new level. Through reliability test, the reliability characteristic quantity of electronic products can be determined when they work or store under various environmental conditions, so as to provide useful data for use, production and design; It can also expose the problems existing in the design, raw materials and process flow of the product. Through a series of feedback measures such as failure analysis and quality control, the existing problems of products can be solved gradually and the reliability of products can be improved.

Introduction to reliability test

Reliability test refers to the ability of the product to complete the specified functions under the specified conditions and within the specified time. In the process of design and application, the product is constantly affected by its own and external climate environment and mechanical environment, but still needs to be able to work normally, so it needs to be verified with test equipment. This verification is basically divided into three parts: R & D test, trial production test and mass production sampling inspection.

Reliability test type of electronic products:

1. According to the test items, it can be divided into environmental test, life test and special test;

2. According to the test purpose, it can be divided into screening test, identification test and acceptance test;

3. According to the nature of the test, it can be divided into destructive test and non-destructive test.

For most electronic products, life is the most important reliability characteristic. Therefore, reliability test often refers to life test. Life test can be divided into storage life test in non working state and working life test in working state. In order to shorten the test cycle, reduce the number of samples and test costs, accelerated life test is often used. In the accelerated life test of electronic products, the most commonly used stresses are temperature and voltage.

The main purpose of reliability testing of electronic products:

1. In the development stage, it is used to expose the defects of trial products in all aspects and evaluate the reliability of products reaching the predetermined indicators;

2. Provide information for production process quality supervision in the production stage;

3. Carry out reliability appraisal or acceptance of finalized products;

4. Expose and analyze the failure rules, relevant failure modes and failure mechanisms of products under different environments and stress conditions;

5. In order to improve product reliability, formulate and improve reliability test scheme, and provide basis for users to select products.

Reliability has become an important quality index of products to be assessed and tested. In short, for products, the higher the reliability, the better. The reliability test report can objectively point out that the product works normally for a long time. Generally speaking, the cost of R & D and production is high, but the later maintenance cost is low; Generally, the R & D and production cost of products with low reliability is low, but the later maintenance cost is high. Professional terms refer to that the higher the reliability of the product, the longer the product will work in the fault-free state.