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Electronic components X-ray scanning detection of counterfeit components

Date:2021-12-15 15:14:47

X-ray, commonly known as X-ray, has the function of penetrating the object for perspective, so it is often used to detect the internal defects of the object. It has a wide range of applications, among which the electronic semiconductor industry needs to test the product quality with the help of the performance of X-ray testing equipment. Electronic semiconductors often need to detect SMT and circuit board patches. Items to be tested include internal bubbles, internal slag inclusions, inclusions, cracks, missing welding, etc. View >>

Test and analysis of electrical stress failure of electrical devices

Date:2021-12-15 15:09:56

Due to the continuous improvement of science and technology in modern society, the application scope of electronic devices is expanding. Electronic devices can be seen everywhere in our life and work. Due to the wide range of applications of electronic devices, the failure phenomena of electronic devices are also diverse and can be seen everywhere. Electrical stress failure is an important aspect of electronic device failure. The analysis and research of electrical stress failure of electrical devices is of far-reaching significance to the production, use and R & D of electronic devices. View >>

RoHS component analysis and detection of electronic and electrical products

Date:2021-12-14 18:37:00

With the increasingly strict laws and regulations and corresponding law enforcement established by various countries for the safety and environmental protection characteristics of electronic and electrical products, how to stand out in the market competition and turn challenges into opportunities is a common topic faced by many electronic and electrical related enterprises. In the electronic and electrical field, there is a mandatory standard RoHS formulated by EU legislation. As the first step of electronic and electrical environmental protection, it is one of the basic access thresholds for electronic and electrical products to enter the market. View >>

What are the main reliability testing methods for electronic components?

Date:2021-12-13 16:36:00

Speaking of electronic components, we should not be unfamiliar. What about the reliability of electronic components? The reliability of electronic components is an important factor affecting product reliability. Reliability test is to determine whether the products transferred to mass production through reliability identification test meet the specified reliability requirements under specified conditions, and to verify whether the reliability of products decreases with the changes of process, tooling, workflow, parts quality and other factors during mass production. Only through these, can the product performance be trusted and the product quality be excellent. View >>

Function and standard of NDT for welded workpieces

Date:2021-12-13 16:33:00

Penetrant testing is a non-destructive testing method based on the principle of capillary action to inspect surface opening defects. Penetrant testing can be used to detect the surface opening defects of metal and non-metal workpieces, which is not affected by the structure, chemical composition and defect shape of the inspected workpieces. However, conventional penetrant testing cannot or is difficult to inspect porous materials, and is not suitable for detecting defects that the opening is blocked due to external factors. Because of its simplicity and easy operation, penetrant testing is widely used in various fields of modern industry. View >>

November core information summary: the effect of "long and short materials" has intensified, and major mergers and acquisitions have attracted attention

Date:2021-12-10 15:06:00

Under the tide of core shortage, the hottest information in the IC industry every month is about shortage and price rise, and the 11th month of 2021 is no exception. In that month, the market shortage, price rise and delivery period extension continued, but the decline of the two major memories continued, resulting in the establishment of "long and short materials" in the market, which will have a new impact on the market. View >>

Knowledge sharing | quality level and relevant standards of components

Date:2021-12-10 15:00:00

Quality is the life of an enterprise. Electronic components are the basis of enterprise products. Without highly reliable components, it is impossible to produce "high, precision and sharp" products. The quality and reliability of electronic components is related to the reputation and development of a high-tech enterprise. Therefore, any high-tech enterprise must attach great importance to the quality and system of purchased electronic components, and take practical measures to improve the quality and reliability of purchased products. View >>

What is the difference between lead-free process and lead-free process? You can understand a form

Date:2021-12-10 14:43:00

Lead containing technology has a development history of more than 100 years. After the research of a large number of lead containing technology experts, it has good welding reliability and stability and mature production technology, which mainly depends on the characteristics of lead containing solder alloy. Lead solder alloy has low melting point, low welding temperature and less thermal damage to electronic products; Lead solder alloy has small wetting angle and good weldability, and the possibility of "false welding" of product solder joint is small; The solder alloy has good toughness, and the vibration resistance of the formed solder joint is better than that of lead-free solder joint. The melting point temperature of alternative alloys is higher than that of existing tin lead alloys. For example, according to the "tin silver copper" alloy which is more likely to be widely accepted in the industry, the starting melting point is 217 ℃, which will cause a process window in the welding process View >>

Briefly describe the classification of working temperature of electronic components

Date:2021-12-10 14:30:00

Most semiconductor devices usually indicate that they need to be used at a certain temperature level, such as "commercial" temperature level (0 ℃ ~ 70 ℃) or "industrial" temperature level (- 40 ℃ ~ + 85 ℃). These two types of temperature levels can basically meet the needs of semiconductor customers who dominate the computer industry, telecommunications industry and consumer electronics industry. View >>

Basic requirements for solder joints

Date:2021-12-09 14:35:40

Welding is a process in which the material of the workpiece to be welded (the same or different) is heated, pressurized or both, and whether to use filler materials is selected to make the material of the workpiece achieve the combination between atoms and form a permanent connection. Solder is an essential material for the welding electronics industry. The main solder materials include solder wire, solder strip, etc. What are the basic requirements of these solder materials for solder joints? Let's introduce them to you. View >>