How to inspect the appearance quality of electronic components?

Date：2022-06-02 16:08:06 Views：1488

Electronic components are widely used, such as thyristors (crystal control), inductor coils, transformers, crystal oscillators, earphones, resistors, capacitors, etc., which all use electronic components. IC chip appearance inspection system in the production process of IC integrated chip devices, the appearance quality inspection of the chip is an essential link, including the inspection items such as the pin size, deformity, deflection, uneven spacing and poor flatness of the chip, and the above quality problems will directly affect the quality of circuit products. Any product will produce some bad appearance in the production process, and electronic components are no exception. Then, how to do the appearance quality inspection of electronic components? The following introduction is for your reference.

1、 How to check the appearance quality of electronic components?

When identifying and detecting electronic components, the following operations shall be followed:

1. check that the model, specification, manufacturer and place of origin of the components must meet the design requirements, and the outer packaging is intact.

2. the electrode leads of electronic components shall be free of crimping and bending, and the coating shall be intact, smooth, free of oxidation and corrosion.

3. check whether the appearance of electronic components must be intact, whether there are defects such as dents, scratches and cracks on the surface, and whether the external coated components must be free of falling off and scratches.

4. the model and specification marks on the electronic components shall be clear and complete, the position and color of the color code shall comply with the standards, and the characters on the integrated circuit shall be carefully checked.

5. the dimensions of the components of the mechanical structure shall be qualified, the threads shall be flexible and the hand feel shall be appropriate.

6. the switch elements are flexible in operation and feel good; The joint shall be appropriate and in good contact.

The components and parts in various electronic products have their own characteristics, and the inspection content shall be determined according to the specific requirements of each component and part.

Generally speaking, electronic components need to test various external bumps, especially the so-called protruding angle. Rough edges and other bumps. If human eyes are used for inspection, various problems will occur, such as mental state problems and emotional state problems, which will affect the accuracy of appearance inspection, resulting in an increase in the defective rate of products, or some defects cannot be detected by human eyes. Therefore, appearance inspection equipment needs to be used.

The surface defect detection equipment for electronic components integrates a number of advanced technology development achievements in the field of machine vision, and integrates a number of innovative detection concepts. It can not only detect seamlessly with the production line, but also detect offline. It can provide intuitive production feedback while quickly detecting the surface defects of materials and the internal defects of translucent materials. It can be widely used in the fiber industry, plasticizing industry Papermaking and electronic industry, metal industry and other fields.

The above is the introduction to the appearance quality inspection of electronic components. If you need this, please consult!