Discussion on the Secondary Screening Process of Components and Its Importance

When it comes to the use and application of electronic components, the secondary screening process and its importance become crucial. The secondary screening of components refers to the process of strict screening and verification of the obtained components after the selection and procurement of the original supplier. This process aims to ensure that components meet specific quality standards and achieve expected goals in product manufacturing and performance. In this article, we will explore the process of secondary screening of electronic components, the importance of its implementation, and its impact on product quality and performance.

1、 The purpose of secondary screening of components

1. Eliminate counterfeit and inferior products

Counterfeit and inferior products are a major challenge in the electronic manufacturing industry. Counterfeit and inferior products can have a significant impact on the performance and reliability of circuit boards. Secondary screening of components can effectively eliminate the risk of counterfeit and inferior products, ensuring product quality.

2. Ensure that the quality of the components meets the standards

The quality of components is directly related to the performance and reliability of circuit boards. In order to ensure that the quality of the components meets the standards, during secondary screening, the parameters of the components are generally tested to ensure that they meet relevant standards.

2、 The process of secondary screening of components

1. Procurement of raw materials

The quality of components affects the quality of circuit boards, so the procurement of components is crucial. When purchasing components, it is advisable to choose reputable manufacturers and inform them of the requirements for secondary screening.

2. Preliminary screening of components

After receiving the components, preliminary screening of the components is required. The purpose of preliminary screening is to eliminate obviously problematic components. During preliminary screening, the appearance of the components should be inspected, such as checking for cracks and scratches.

3. Perform parameter testing on components

After preliminary screening, it is necessary to perform parameter testing on the components. The purpose of parameter detection is to determine whether the parameters of the components meet the requirements. Parameter detection generally includes the following aspects:

(1) Appearance inspection: Check whether the size, color, identification, etc. of the components meet the requirements.

(2) Electrical performance testing: detecting parameters such as DC resistance, capacitance, and inductance of components.

(3) Voltage stress test: detects whether the components can withstand the predetermined voltage.

4. Perform X-ray inspection on components

X-ray inspection is a non-destructive testing method that can effectively detect internal problems in components. Due to the difficulty of direct detection inside components, X-ray inspection has become an important step in the secondary screening of components.

5. Classify the screened components

After completing the fourth step, the selected components will be labeled differently and classified. The classification criteria are generally based on the properties and parameters of the components.

6. Conduct final screening

After classifying the components, final screening is also required. The final screening is to confirm whether the screened components meet the requirements. The final screening is usually completed through electrical performance testing and X-ray inspection.

3、 Notes on Secondary Screening of Components

1. Choose a reputable manufacturer

When purchasing components, it is advisable to choose a reputable manufacturer. The product quality of legitimate manufacturers is more guaranteed, and there is a sound quality management system.

2. Equipped with professional screening equipment

Different components require different screening equipment. When conducting secondary screening of components, appropriate screening equipment should be selected to ensure the detection accuracy and precision of the equipment.

3. Beware of counterfeit products

Counterfeit and inferior products are a major hidden danger in the electronic manufacturing industry. When conducting secondary screening of components, it is necessary to maintain high vigilance against counterfeit and inferior products to avoid safety hazards to production.

It is crucial to fully understand and value the process of secondary screening of components when purchasing and using them. Only through a strict secondary screening process can we ensure that the components used have good quality and reliability, thereby providing a solid foundation for the successful manufacturing and performance of products.