Date：2022-07-06 15:43:42

Electronic technology is an emerging technology that began to develop at the end of the 19th century and the beginning of the 20th century. In the 20th century, it developed most rapidly and was widely used. It has become an important symbol of the development of modern science and technology. With the increasing requirements for the quality and reliability of electronic products, the reliability of electronic components continues to attract people's attention. How to improve the reliability has become a hot issue in the manufacturing of electronic components. View >>

Date：2022-07-05 15:10:17

Safety regulation certification is actually a technical barrier. In order to restrict the products of other countries from entering their own countries, all countries in the world have different requirements for safety regulations, and they are still mandatory. In order to protect the rights and interests of users, the safety inspection of products will be more and more extensive, and more attention will be paid to it. Therefore, before the formal sale of electronic products, safety inspection is an important link. What are the common safety inspection items of electronic products? Let's have a look. View >>

Date：2022-07-05 15:06:24

Lead free solder is mainly used in electronic packaging, temperature fuse and other fields to realize the connection function between the connected materials. For example, the connection between electronic components and circuit boards can be realized by reflow soldering or wave soldering. So what is the definition of lead-free solder? What are the characteristics and technical difficulties of lead-free welding? In the whole process of SMT placement, an excellent lead-free solder joint plays a vital role in the quality of the whole PCBA finished product. Let's discuss the characteristics of lead-free welding process and the technical problems. View >>

Date：2022-07-04 17:18:36

What is salt spray test? Salt spray test is an accelerated corrosion resistance evaluation method of artificial atmosphere. It atomizes a certain concentration of salt water; Then spray it into a closed constant temperature box to reflect the corrosion resistance of the tested sample by observing the change of the tested sample after being placed in the box for a period of time. It is an accelerated test method. The salt concentration of chloride in the salt fog environment is several times or dozens of times that of the salt fog content in the general natural environment, which greatly improves the corrosion rate. The time to obtain the results of salt fog test on products is also greatly shortened. What materials should be prepared for salt spray test? In order to help you understand in depth, the following contents are sorted out by Chuangxin testing network for your reference. View >>

Date：2022-07-04 17:12:39

RoHS directive 2011/65/eu (also known as RoHS 2.0 directive) is a re update of the previous EU ROHS directive 2002/95/ EC. The new directive came into force on 21 July 2011 and is consistent with the new legislative framework. It stipulates restrictions on the use of hazardous substances in electrical and electronic equipment (EEE). Such harmful substances are Mercury, lead, cadmium, polybrominated biphenyls, dibutyl phthalate, diisobutyl phthalate, hexavalent chromium, polybrominated diphenyl ethers, etc. View >>

Date：2022-06-30 17:36:31

The failure forms of metals are closely related to the failure causes. The failure forms are the apparent characteristics of the metal failure process, which can be observed in an appropriate way. Through metal failure analysis, we can know whether there are problems in the performance of metal materials or metal equipment in advance, so as to avoid possible accident hazards in engineering application. View >>

Date：2022-06-30 17:03:25

In the narrow sense, failure refers to the phenomenon that mechanical and electrical products lose their functions, while failure analysis is to analyze and diagnose the failure mode, cause and mechanism, and study the technical activities and management activities that take remedial prediction and preventive measures. At the same time, the comprehensive discipline that intersects with related theories, technologies and methods is called failure science. In fact, the so-called failure analysis also includes many aspects. What are the aspects of the analysis here? View >>

Date：2022-06-29 16:39:39

According to media reports, a company tracking counterfeiting and fraud in the chip industry said on Tuesday that the serious shortage of semiconductors led desperate buyers to report record cases of wire transfer fraud last year. View >>

Date：2022-06-29 16:36:39

From the perspective of information technology, photoelectric switch is a tool to obtain and convert information, which can be electricity, magnetism, light, sound, heat, force, displacement, etc. Sensitive element is the core component of sensor, which is used to sense external information and convert it into useful information. The same sensing element can form different application photoelectric switches due to different devices. How many types of photoelectric switches are there? How to detect good and bad? This article has collected and sorted out some materials, which are expected to be of great reference value to all readers. View >>

Date：2022-06-28 17:34:48

The quality requirements for the components used in switching power supply and other electronic equipment are also getting higher and higher. With the wide use of semiconductor devices, their life has been degraded and finally led to failure. Failure analysis can deeply understand the failure mechanism and causes, and lead to the improvement of component and product design, which is helpful to improve the reliability of electronic systems. View >>