Date：2022-09-02 16:22:00

ROHS certification covers a wide range of products, covering almost all electronic, electrical, medical, communication, toys, security information and other products. It includes not only the complete machine products, but also the parts, raw materials and packaging used in the production of the complete machine, which is related to the whole production chain. View >>

Date：2022-09-01 15:55:00

In PCB processing, wave soldering is to make the welding surface of the plug-in board directly contact with high-temperature liquid tin to achieve the purpose of welding. The high-temperature liquid tin maintains a slope, and the liquid tin is shaped like waves by a special device. Therefore, it is called "wave soldering", and its main material is solder bar. In order to help you have a deeper understanding, the following contents are organized by Chuangxin testing network for your reference. View >>

Date：2022-09-01 15:38:00

Manual welding, as a basic skill that electronics enthusiasts must master, looks simple, but the correct welding steps are often ignored. The wrong operation method will directly affect the welding quality, leaving hidden dangers such as faulty welding and short circuit for products. Therefore, we must master the correct welding method in the process of learning and practice. View >>

Date：2022-08-31 17:19:03

With the continuous development of the electronic industry, the technical level of PCB is also improving. I believe those who have printed boards in various PCB sample factories know that there are many kinds of common Proofing processes, mainly including tin spraying, gold deposition, gold-plated OSP, etc. among them, tin spraying is also divided into lead-free and lead-free tin spraying. How can we distinguish lead-free and lead-free processes for PCB board proofing? View >>

Date：2022-08-31 17:17:00

EMC test is also called electromagnetic compatibility (EMC). The full name is electro magnetic compatibility, which refers to the comprehensive evaluation of the electromagnetic interference (EMI) and anti-interference capability (EMS) of electronic products. It is one of the important indicators of product quality. The measurement of electromagnetic compatibility consists of test sites and test instruments. The purpose of EMC test is to detect the impact of electromagnetic radiation generated by electrical products on human body, public power grid and other normal electrical products. View >>

Date：2022-08-30 16:26:07

The laws, regulations and law enforcement established by various countries for the safety and environmental protection characteristics of electronic and electrical products have become increasingly strict. At the same time, some emerging markets have also moved closer to the European and American markets in terms of corresponding legislation. As the first step of environmental protection in the electronic and electrical industry, ROHS has become the basic entry threshold for electronic and electrical products to enter the global market. ROHS test is required in the EU market. RoHS aims to reduce such substances in order to create a safer environment for people handling such products. The main purpose of using RoHS is to prevent the use of harmful substances in the manufacture of electrical equipment. View >>

Date：2022-08-30 16:23:37

With the increasingly extensive and diversified applications in the industry, the power supply products also continue to develop in the direction of high frequency, high efficiency, high density, low voltage, large current and diversification. With the rapid development trend, the PCB design of power products is facing greater challenges, mainly including power conversion efficiency, thermal analysis, power plane integrity and EMI (electromagnetic interference). At the same time, the packaging structure and external dimensions of power products are increasingly standardized to meet the requirements of the global integrated market. View >>

Date：2022-08-25 15:57:12

The nominal properties of general materials are measured under certain conditions, but some materials, especially the treated materials, may not reach such properties. Therefore, the properties of materials are very volatile and greatly affected by the treatment conditions, which is the reliability of materials. In order to help you understand in depth, this paper will summarize the relevant knowledge of metal material testing. If you are interested in what this article is about to cover, read on. View >>

Date：2022-08-25 15:55:14

The test site for environmental test shall be widely representative, capable of carrying out as many test items as possible, and shall be as close as possible to the possible operational environment in the future. However, the environmental test site is often different from the real use environment. When selecting the simulation test items, the use requirements of the items to be tested shall be specifically analyzed. The selected test items shall not only represent the main use environment, but also accelerate the test speed and save money. This paper has collected and collated some materials, and I hope that it can be of great reference value to all readers. View >>

Date：2022-08-25 15:51:14

With the increasing demand 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. In order to help you understand deeply, this paper will summarize the relevant knowledge of electronic device failure analysis. If you are interested in what this article is about to cover, read on. View >>