Date：2022-05-30 14:31:20

As we all know, resistor is a very common electronic component, which plays a very important role in the protection of household appliances, industrial automation and other fields. However, in the process of using the resistor, you may have encountered that after the product has been used by the customer for a period of time, the circuit fails for no reason. The circuit may look intact or burn a large area. This phenomenon is mainly due to the failure of the resistor. View >>

Date：2022-05-30 14:20:05

The lifetime of most semiconductor devices can exceed many years under normal use. But we can't wait a few years to study devices; We must increase the applied stress. The applied stresses can enhance or accelerate potential failure mechanisms, help identify root causes, and help take action to prevent failure modes. View >>

Date：2022-05-27 15:10:00

What is China RoHS? China's ROHS certification "also known as" national push ROHS certification "refers to the national push voluntary certification for pollution control of electronic information products." China's ROHS certification "refers to the national push voluntary certification for pollution control of electronic information products. On February 28, 2006, the administrative measures for pollution control of electronic information products It was officially promulgated and took effect on march1,2007. China's ROHS standards are mainly applicable to the control and reduction of environmental pollution and other public hazards caused by electronic information products in the process of domestic production, sales and import of electronic information products. These measures are applicable to promote cleaner production and comprehensive utilization of resources in the electrical and electronic industry, encourage green consumption, and protect the environment and human health. View >>

Date：2022-05-27 14:53:00

RoHS is a mandatory standard formulated by EU legislation. Its full name is the directive on restricting the use of certain hazardous components in electronic and electrical equipment. The ROHS certification standard has been formally implemented on july1,2006. It is mainly used to regulate the material and process standards of electronic and electrical products, so as to avoid harm to human health and help protect the environment. View >>

Date：2022-05-27 14:50:22

As an emerging technology, failure analysis has been popularized to mass enterprises in recent years. In fact, failure analysis is to reproduce the failure causes of products, and find out the specific failure causes and failure mechanisms through inspection and analysis. Therefore, the subject of failure analysis can improve the product quality while taking into account the product repair and technical improvement. View >>

Date：2022-05-27 14:43:04

Failure means that the electrical performance parameters or physical and chemical performance indexes of electronic components in normal operation no longer meet the specified requirements after a certain stress test or field use. View >>

Date：2022-05-27 14:41:00

With the continuous improvement of LED lighting efficiency in recent years, the service life and reliability of LED have been paid more and more attention by the industry. It is one of the most important performances of LED products. LED product reliability test standard project. LED products are very common in our life, such as LED displays, LED lights and a series of products. However, if these products want to be successfully put on the market, they must be tested for reliability. View >>

Date：2022-05-26 17:01:52

There are many kinds of weld defects, which can be divided into internal defects and external defects according to their position in the weld. External defects are located on the outer surface of the weld, which can be seen with the naked eye or low magnification. For example, the weld size does not meet the requirements, undercut, weld bead, crater, air hole, crack, slag inclusion, incomplete penetration, incomplete fusion, etc. Internal defects are located inside the weld. Such defects are found by destructive inspection or flaw detection methods, such as incomplete penetration, incomplete fusion, pores, cracks, slag inclusion, etc. View >>

Date：2022-05-26 16:34:28

Recently, the national standard GB / T 27029-2022 general principles and requirements for conformity assessment, validation and verification institutions was officially released. The national standard is equivalent to the international standard ISO / IEC 17029:2019, which is under the jurisdiction of the national certification and accreditation Standardization Technical Committee (SAC / TC261), and the China Certification and Accreditation Association takes the lead in organizing experts from 17 units such as industry, University, research and application to translate the equivalent. View >>

Date：2022-05-26 16:30:04

Welding process is a very important process in PCBA processing process. Once the welding reliability is not strong, it will have a great impact on the final welding quality, which is easy to cause bad welding phenomena such as false welding, tin bead and bridging. There are many factors affecting the welding reliability in PCBA processing process, such as solder factor, Material oxidation factors and welding process control factors are the main reasons affecting the reliability of PCBA welding. Next, let's learn in detail why these factors affect the weldability of PCBA welding. View >>