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 >>

Date：2022-04-07 15:20:44

With the continuous development of the electronic industry, the demand for PCB board also increases. The common surface processes of PCB board include tin spraying, gold deposition, gold plating, OSP, etc. in fact, tin spraying is divided into lead-free tin spraying and lead-free tin spraying. Next, we will mainly talk about the inspection standards of lead-free process and introduce the difference between lead-free and lead-free PCB board. View >>

Date：2022-04-07 15:14:28

DPA analysis (destructive physical analysis) is destructive physical analysis. It is to randomly select appropriate samples from the finished batch of electronic components, and adopt a series of non-destructive and destructive physical test and analysis methods to test whether the design, structure, material and manufacturing quality of components meet the specification requirements of the intended use. View >>

Date：2022-04-06 15:46:00

First of all, what is the ROHS certification promoted by the state? In May 2011, the national RoHS voluntary certification supporting standards "limit requirements for restricted substances in electronic and electrical products" (GB / T 26572-2011) and "determination of six restricted substances in electronic and electrical products (lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers)" (GB / T 26125-2011 / IEC 62321:2008) were officially released. In November 2011, the national implementation rules for voluntary certification of pollution control of electronic information products was officially implemented. View >>

Date：2022-04-06 15:41:00

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

Date：2022-04-06 15:36:15

Industrial CT is a testing field rising in recent decades. Because of its nondestructive, intuitive, quantifiable and other advantages, it has been widely used in all walks of life, especially in the fields of automobile, aerospace, military, electronics, medical devices and so on. CT based defect analysis has been widely used today, such as castings, plastic parts and BGAs. Quickly, accurately and intuitively find the internal defects of the product (defect type, location, size, etc.), such as cracks, pores, porosity, inclusions and other defects, and analyze them to find the root cause of the defects, so as to improve the product performance and prolong the service life of the product. View >>