Date：2022-04-29 14:20:00

Basic concept of failure analysis: failure analysis is of great significance to the production and use of products. Failure may occur at all stages of the product life cycle, involving product R & D and design, incoming inspection, processing and assembly, test screening, use and other links. Through the analysis of process waste products, early failure, test failure, pilot test failure and field failure samples, confirm the failure mode and analyze the failure mechanism, Clarify the causes of failure, and finally give preventive countermeasures to reduce or avoid the recurrence of failure. View >>

Date：2022-04-29 13:52:25

During the processing of electronic products, due to the complex processing and extensive use of component materials, both processing defects and component defects can be divided into obvious defects and potential defects. Obvious defects refer to those defects that make the products unable to work normally, such as short circuit / open circuit, and the potential defects make the products temporarily usable, but the defects will be exposed soon during use, and the products cannot work normally. Potential defects cannot be found by conventional inspection methods, but eliminated by aging methods. If the effect of aging method is not good, the potential defects that have not been eliminated will eventually appear in the form of early failure (or failure) during product operation, resulting in an increase in product repair rate and maintenance cost. View >>

Date：2022-04-28 15:05:44

Most of our electronic products now have microcontrollers or processors in their internal circuits. It can be said that they are single chip microcomputer or ARM chip. It can be said that the heart of the system of electronic products is the controller processor, so the internal program of the controller processor is the soul of electronic products. So, what does electronic product burning mean? What's the difference between offline burning and online burning? Come and have a look! View >>

Date：2022-04-28 14:58:13

The burning program is to be written on the memory. There is a set of solidified instructions on the chip. After starting, load the specified data and then start running. Similar to the BIOS of the motherboard, the condition to be met is that the chip can read the contents of the memory and has a storage device (which can write data), so that the program can be written according to the function of the chip. View >>

Date：2022-04-28 14:51:31

With the popularity of cars, more and more people have higher and higher requirements for the long-term reliability, stability and appearance of cars. The inspection of automobile parts is an important process in the process of automobile overhaul, which will directly affect the repair quality and cost of automobile. When testing these auto parts, X-ray testing equipment must be used. As one of the five conventional nondestructive testing methods, X-ray testing technology has been widely used in industry. View >>

Date：2022-04-28 14:36:53

Salt spray test is an important test to evaluate the corrosion resistance of products. It mainly uses the artificial simulated salt spray environmental conditions created by salt spray test equipment to evaluate the corrosion resistance of products or metal materials. In order to help you have an in-depth understanding, this paper will summarize the relevant knowledge of salt spray test. If you are interested in what this article will cover, read on. View >>

Date：2022-04-27 14:19:34

Some of the company's products must be stamped with CNAs and CMA seals when making quality inspection reports, which requires many relevant industry laboratories to pass CNAs (laboratory accreditation) and CMA (qualification accreditation). What is the difference between CMA and CNAs? Which is better, CMA or CNAs certification? This paper has collected and sorted out some materials, which are expected to be of great reference value to all readers. View >>

Date：2022-04-27 14:09:56

CNAs is reviewed and managed by China conformity assessment and Accreditation Commission and is internationally recognized. CMA is reviewed and managed by CNCA (China National Certification and accreditation supervision and Administration Commission) and the quality and technical supervision departments of the people's governments of all provinces, cities, autonomous regions and municipalities directly under the central government. It is effective within the territory of China and plays a fair role in issuing certificates to the society. The handling methods of nonconformities in preliminary evaluation, Supervision Review and re evaluation are different, and the handling methods of general nonconformities and serious nonconformities are also different. In order to help you have an in-depth understanding, the following contents are sorted out by Chuangxin testing network for your reference. View >>

Date：2022-04-27 14:05:26

Data reliability was originally called data integrity in Chinese, but now it is called data reliability. Data integrity refers to the degree to which all data are complete, consistent and accurate in the life cycle of data. Ensuring data integrity means collecting, recording, reporting and preserving data and information in an accurate, true and completely representative manner. Data reliability has been the focus of global drug regulators in recent years. It is also the motivation and key content of CFDA's national clinical trial verification since July 2015. View >>

Date：2022-04-27 14:02:17

The criteria for accreditation and review of laboratory qualification stipulates: "the laboratory shall appoint a quality director (or quality director), whose main responsibility is to be responsible for the establishment and effective operation of the" documented "quality management system. It should be given the responsibility and power to ensure the effective operation of the quality management system at any time, so as to make decisions and solve the problems existing in the quality management system ". The person in charge of laboratory quality is authorized by the top management of the company to fully perform the healthy operation of the company's quality management system. View >>