Date：2022-04-15 16:52:33

XRF test is one of the commonly used tests. People usually call the secondary X-ray generated by X-ray irradiation on substances as X-ray fluorescence, and the X-ray used for irradiation as primary X-ray. So X-ray fluorescence is still X-ray. View >>

Date：2022-04-15 16:42:00

CMA is the abbreviation of China Metrology Accreditation. Only the third-party inspection organization with CNAs certification is allowed to apply CMA chapter on the inspection report, and CMA can be applied on the inspection certificate report according to the new items allowed on the qualification certificate. The test report with CMA seal can be used as a product quality evaluation, effectiveness and appraisal institution, which is legally recognized. Cmacnas certification and CNAs laboratory identification, as common verification of inspection reports, have not only common points but also some differences. View >>

Date：2022-04-12 14:02:30

PCBA (PCB assembly) refers to the process of mounting, inserting and welding the bare PCB board. The circuit boards we usually see are welded with components on the basis of PCB, namely PCBA, and PCB is "bare board" and "light board". Generally speaking, PCBA reliability test is divided into ICT test, FCT test, fatigue test, simulated environment test and aging test. Because the problem of any material will affect the overall result of PCBA board, which requires us to have sufficient material detection ability, supplier management ability, technical analysis ability and reliability testing ability. View >>

Date：2022-04-12 13:58:00

The quality of chip mainly depends on market, performance and reliability factors. Firstly, in the early stage of chip development, the market needs to be fully studied to define the spec to meet the needs of customers; The second is performance. The circuit designed by IC design engineers needs to pass designer simulation, DFT circuit verification, laboratory sample evaluation and FT, and it is considered that the performance meets the requirements of early definition; The last is reliability. Because the test chip can only ensure that the customer gets the sample for the first time, a series of stress tests need to be carried out to simulate the impact of some strict service conditions on the chip, so as to evaluate the service life and possible quality risk of the chip. View >>

Date：2022-04-11 17:15:48

Environment and reliability test is an activity to ensure that the product maintains functional reliability in all environments of expected use, transportation or storage during the specified service life. The upstream of test equipment and test service industry is mainly steel, copper, iron and other metal smelting and machinery, electronics and other industries. View >>

Date：2022-04-11 17:11:53

Reliability test, also known as reliability evaluation, refers to evaluating the reliability characteristics of products by using probability statistical method according to the reliability structure, life type and reliability test information of each unit. Software reliability is the ability of a software system to complete specified functions within a specified time and under specified environmental conditions. Generally, the reliability of software system can only be measured by testing it. View >>

Date：2022-04-08 15:13:52

Reliability test is a means to investigate, analyze and evaluate the reliability of products. The test to evaluate and analyze the life characteristics of products is called life test. It is the most important type of test in reliability identification and acceptance test. Life test can be divided into storage life test, working life test and accelerated life test. Through the life test, we can understand the characteristics and failure law of product life, and calculate the reliability indexes such as average life and failure rate of products, which can be used as an important basis for reliability design, reliability prediction and improving product quality. View >>

Date：2022-04-08 15:06:50

PCB reliability refers to the ability of "bare board" to meet the production conditions of subsequent PCBA assembly and maintain normal operation function in a certain period of time under specific working environment and operating conditions. Technical measures to improve the reliability of PCB equipment: scheme selection, circuit design, circuit board design, structural design, component selection, manufacturing process and other aspects. The specific measures are as follows: View >>

Date：2022-04-08 15:02:40

Whether in the manufacturing and assembly process or in practical use, PCB should have reliable performance, which is very important. In addition to the relevant costs, the defects in the assembly process may be brought into the final product by the PCB, and faults may occur in the actual use process, resulting in claims. No matter what the internal quality of PCB is, it is almost the same on the surface. It is through the surface that we can see the differences, and these differences are crucial to the durability and function of PCB in the whole life. Let's take a look at the 14 obvious features of high reliability PCB circuit board: View >>

Date：2022-04-07 15:29:12

What are lead-free electronic products? "Lead free" here refers to Wuxi welding line. Lead free tin wire is a product of welding wire. Tin wire can be divided into lead-free tin wire and lead-free tin wire, both of which are used for the welding of circuit board. Lead free solder wire is also called environmental protection tin wire. Lead free solder wire is also called environmental protection tin wire. Its main components are tin (SN), silver (Ag), copper (Cu), and the rest include trace lead (PB), mercury (Hg), cadmium (CD), polybrominated biphenyls (PBBs), etc. View >>