What are the characteristics of electronic products? How to improve the reliability of components?

Date：2021-07-23 16:19:00Views：1898

With the rapid development of modern electronic technology, high-tech equipment constantly puts forward new requirements for the reliability of electronic equipment components. As the most basic component of the equipment system, its reliability greatly affects the overall operation efficiency of electronic equipment. In the process of selecting electronic components, it is necessary to ensure the reliability of the components themselves and meet the electrical performance indexes of the equipment system and relevant requirements, so as to ensure the operation reliability of electronic equipment. The following mainly analyzes the characteristics of electronic components and puts forward corresponding measures and methods.

First, let's look at the characteristics of electronic components:

1. There are many categories and varieties of products.Only according to the classification and coding statistics of electronic products compiled by the former electronics department, there are 206 categories and 2519 sub categories of electronic components except integrated circuits, including 13 categories and 260 sub categories of electric vacuum components; Semiconductor discrete devices (including lasers, optoelectronic devices, etc.) fall into 18 categories and 379 sub categories; There are 17 specialties of electronic components, 161 categories and 1284 categories. There are 14 categories and 596 sub categories of electronic materials.

2. Highly professionalIt is also a multi-disciplinary collection, with great differences in production technology and production equipment, testing technology and equipment. This is not only the difference between electric vacuum devices, semiconductor devices and electronic components, but also between major categories and even sub categories in each industry. For example, different display devices, different components, that is, different capacitors, resistors and sensitive elements are also different. Of course, similar products need different production technologies and methods at different stages, Therefore, there is a production line for an electronic component, and a generation of component products is a generation of production line; Some enterprises specializing in the production of multilayer printed circuit boards need to add new equipment every year.

3. Complete set and series.This is determined by the electronic circuit, frequency band and frequency characteristics, accuracy, function, power, storage and use conditions, environment and service life requirements of the whole machine.

4. The investment intensity varies greatly,There are also great differences in different periods, especially the production scale, product yield and requirements for production conditions and production environment. Among them, the investment scale of products that are high-tech and need large-scale production has increased by one order of magnitude compared with the "Eighth Five Year Plan" period, often reaching US $100 million, and the lowest is US $50 million; For other products, although the technical difficulty is also high, the output is limited, the equipment automation is low, and the investment intensity is much smaller.

5. Each kind of electronic components and its industry has its own different development lawsHowever, they are closely related to the development of electronic machines and systems, including electronic technology, the structure of the whole machine and the development of electrical assembly technology. However, in terms of industrial development, there are mutual promotion and mutual restriction between electronic devices and the whole machine system, or between various electronic components.

Measures to improve the reliability of electronic components:

1. Supervise and maintain electronic equipment components

In the process of improving the reliability of electronic equipment components, relevant units shall effectively supervise and maintain them regularly. Relevant units may set up special personnel to regularly maintain and inspect electronic equipment components. In the process of regular inspection, relevant information and important information shall be recorded in time to lay a good foundation for the next inspection. In addition, in the process of maintenance and regular supervision and inspection of electronic equipment components, the existing problems should be solved in time, unqualified electronic equipment components should be eliminated, and timely records should be kept, so that employees can fully understand the operation status of electronic equipment components and determine more detailed replacement time, To ensure the quality of the whole system.

2. Rational selection of electronic equipment components

As China has not yet formulated a relatively complete and unified electronic equipment components management system, there are great differences in types and specifications of components in the market, and there are also great differences among electronic equipment components of various brands. Therefore, in the process of purchasing electronic equipment components, the buyer should fully understand the types and specifications of electronic equipment components in the market, and reasonably select electronic equipment components according to the actual use needs, which provides a basic guarantee for the reliability of electronic equipment components. In addition, in the process of purchase, the buyer should fully understand and master the relevant information of using electronic equipment components. Only by mastering the real information in electronic equipment components can we effectively select good electronic equipment components. However, in the process of selection and purchase, we should also make a comprehensive comparison and choose better devices. Meanwhile, during the procurement process, relevant certificates shall be thoroughly checked to improve the reliability of electronic equipment components.

3. Strengthen the inspection of electronic equipment components

In order to continuously improve the reliability of electronic equipment components, during the operation of components, inspectors shall make reasonable judgment on components and pay attention to strengthening inspection to ensure that electronic equipment components operate as planned to the greatest extent. In the process of inspection, the inspection of electronic equipment components is usually the inspection of connected series circuits. Inspectors should judge the parameters and information of each item and judge the actual operation status of components comprehensively and accurately. At the same time, through the inspection of electronic equipment components, we can understand the performance of electronic equipment components from all aspects, so as to effectively avoid the failure of components in the operation process and ensure the normal operation of the whole electronic system. In the process of inspecting electronic equipment components, the inspection quality should be comprehensively improved. For some problematic electronic equipment components, the staff shall deal with them in time. For devices that do not meet the specification requirements, the staff shall replace them in time to maximize the service reliability of electronic equipment components.

As we all know, the more complex the electronic system, the more serious the reliability problem of electronic equipment components involved. At the same time, the competition of complex electronic systems is also intensifying. The huge economic losses caused by unreliable products fully show the importance of reliability engineering. Therefore, it is very important to ensure the reliability of electronic equipment components. Only by adopting effective strategies to strengthen the reliability of electronic equipment components can we promote the overall development of electronic systems.