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What is component screening test? specialized industrial testing institution

Date:2024-05-14 16:47:00 Views:89

What is component screening test? Component screening test refers to the test conducted to select products with certain characteristics or remove products with early failures. Screening test mainly refers to the test conducted to remove products with early failures. It is a non-destructive test that conducts a full inspection of a product, by applying environmental stress according to a certain procedure to stimulate potential design and manufacturing defects of the product, in order to eliminate early failed products and reduce the failure rate.

The selection of components should generally be carried out by the component manufacturer in accordance with military electronic component specifications or contracts signed between the supply and demand parties. The screening conducted by component manufacturers is generally referred to as "one-time screening". If the technical conditions of "one-time screening" cannot fully meet the quality requirements of the user for the components, the user or its entrusted unit can conduct further screening to supplement the shortcomings of the manufacturer's screening.

The screening conducted by the user or commissioning unit is generally referred to as "secondary screening" or "supplementary screening". Secondary screening refers to the screening conducted by the user when the purchased components do not meet the technical requirements specified by the user during the primary screening test. The purpose and testing method of "primary screening" and "secondary screening" for electronic components are basically the same, but it should be emphasized that "secondary screening" should be tailored based on "primary screening".


Screening tests are generally conducted on finished components, but they can also be carried out on semi-finished components during the production process. For example, non-destructive bonding tensile tests and internal visual inspections before sealing semiconductor devices with higher quality assurance levels belong to semi-finished product screening.

Secondary screening of components refers to further screening and evaluation of components after preliminary screening to ensure they meet specific requirements and standards. The following is a general secondary screening process for electronic components:

1. Determine screening criteria: Based on project requirements and specifications, determine specific requirements for components, such as performance parameters, reliability indicators, size limitations, etc.

2. Supplier screening: Based on a reliable supplier list or evaluation system, select reliable suppliers to ensure the quality and reliability of electronic components.

3. Conduct technical evaluation: Evaluate the technical parameters and performance of components, including electrical characteristics, operating temperature range, size, and weight.

4. Conduct reliability assessment: Evaluate the reliability of components, including lifespan, reliability indicators, environmental adaptability, etc. You can refer to the reliability data and relevant test reports provided by the supplier.

5. Conduct quality assessment: Evaluate the quality control system of electronic components, including supplier quality certification, production process control, quality testing, and defect management.

6. Conduct cost evaluation: Evaluate the cost of components, including unit price, bulk purchase price, supply chain stability, etc. Ensure that the prices of components meet the budget requirements of the project.

7. Conduct substitutability assessment: Evaluate the substitutability of components, including the presence of other components with similar functions and performance, for replacement when needed.

8. Conduct risk assessment: Assess the potential risks of components, including supply risks, technical risks, reliability risks, etc. By assessing risks, more reliable and stable components can be selected.

9. Develop the final component selection: Based on the above evaluation results, develop the final component selection plan and prepare relevant documents and reports.

10. Tracking and monitoring: During the procurement and use of electronic components, track and monitor their performance and reliability to ensure they meet expected requirements.

It should be noted that the specific secondary screening process for components may vary depending on different industries, projects, and requirements.

The above process is for general reference only and should be adjusted and executed according to specific circumstances,I hope it can be helpful to everyone. We will bring more exciting content in the future. The company's testing services cover various testing projects, including electronic component testing and verification, IC authenticity identification, product design and material selection, failure analysis, functional testing, factory incoming material inspection, and ribbon weaving. Welcome to call Chuangxin Testing, we will be happy to serve you.