Date：2021-09-16 15:22:30

Nowadays, in electronic assembly technology, people's awareness of environmental protection is becoming stronger and stronger. From the aspects of environmental protection, legislation, market competition and product reliability, lead-free is imperative. However, at present, lead-free is not mature in theory and application, and a relatively unified standard has not been formed. View >>

Date：2021-09-15 18:24:24

In the electronic manufacturing industry, the words RoHS and lead-free are the most seen. Many chips use lead-free materials, such as pins and tin balls, and slowly change from lead to lead-free. Reliability has become the focus of many people's attention. Unlike other lead-free related issues (such as alloy selection, process window, etc.), we often hear very different views on reliability. At the beginning, I heard many people say that lead-free is more reliable than tin lead, and some people say that tin lead is more reliable than lead-free. How should we judge at this time? In fact, it depends on the specific situation. View >>

Date：2021-09-15 18:19:43

In fact, the so-called burning is to write code or data inside, which requires specific software and specific hardware, and the data format is generally specific. Chip burning is an important part of the production of electronic products. When burning, you may encounter the problem that the burning speed of some chips is too slow, affecting the production efficiency, which is also an important aspect of customer concern. The burning efficiency is inseparable from the burning speed of the chip. What factors are related to the burning speed of the chip? Let's have a look! View >>

Date：2021-09-15 15:41:01

Nondestructive testing is a new comprehensive application technology in the third testing industry. On the premise of not damaging the service performance of the tested object, it applies a variety of physical principles and chemical phenomena to effectively inspect and test all kinds of engineering materials, parts and structural parts. One of the main purposes of NDT is to provide real-time process quality control for raw materials, semi-finished products, finished products and product components of discontinuous processing (such as multi process production) or continuous processing (such as automatic production line), especially to control the metallurgical quality of product materials and production process quality, such as defect condition, organization state At the same time, the quality information obtained through the inspection can be fed back to the design and process department to further improve the design and manufacturing process to improve the product quality View >>

Date：2021-09-15 15:38:00

The failure of a solder joint may cause the failure of the whole device, so how to ensure the quality of solder joint is an important problem. Traditional lead tin solder contains lead, and lead and lead compounds are highly toxic substances. The long-term use of lead solder will bring serious harm to human health and living environment. At present, the demand for lead-free soldering in the electronic industry is becoming more and more urgent, which has had a great impact on the whole industry. Lead free solder has begun to gradually replace lead solder, but lead-free technology will inevitably bring new problems to the reliability of solder joints due to the difference of solder and the adjustment of welding process parameters. Next, what reasons may affect the reliability of lead-free solder joints? View >>

Date：2021-09-14 17:39:03

Industrial CT, industrial computed tomography, It is known as the "best nondestructive testing method". Using industrial CT, the internal structure of the object can be detected non-contact and non-destructive, and the data and images without overlap can be obtained. It can not only accurately give the three-dimensional position data of the internal details of the object, but also quantitatively give the detailed radiation density data. It can 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 defects, so as to improve product performance and prolong product service life. For this reason, industrial CT has become a versatile and comprehensive expert. Defect detection, welding quality diagnosis, internal structure and assembly state in precision workpiece, such as pores and cracks View >>

Date：2021-09-14 17:33:30

With the progress of society and the development of science and technology, automatic detection methods begin to replace the traditional manual methods to improve enterprise production efficiency and product quality. Based on automatic detection, it not only solves the false detection and missing detection caused by the low efficiency and slow speed of manual methods, as well as the subjective constraints of inspectors, but also many systems have realized nearly 100% defect detection. At present, automatic defect detection based on machine vision is widely used. The quality of optical elements mainly depends on the surface quality, and the detection of surface shape deviation, surface roughness and surface defects are the main items to evaluate the surface quality of optical elements. Today we will introduce machine vision detection technology. View >>

Date：2021-09-14 14:31:39

At present, nondestructive testing (NDT) technology is widely used. The structural integrity and safety of almost all components, especially the most critical components, need to be verified. NDT plays a very important role in it. NDT technology is required in almost all manufacturing, service, maintenance or overhaul inspection fields. Five conventional NDT principles, NDT technology does not damage parts or materials, can be tested directly on site, and has high efficiency. There are five most commonly used NDT methods: UT (ultrasonic testing), RT (radiographic testing) and MT (magnetic particle testing) View >>

Date：2021-09-14 14:24:00

Modern nondestructive testing technology can be simply divided into two categories: surface nondestructive testing and near surface nondestructive testing. Surface nondestructive testing technology is a technology used to detect product surface defects, such as fluorescent penetrant testing. It can effectively locate cracks or other types of defects on the surface. Near surface nondestructive testing technology is used to detect defects below the surface. Including ultrasonic testing, laser testing and radiographic testing. There are many kinds of nondestructive testing methods, most of which can be divided into two categories: surface and internal testing. Surface detection methods are used to detect defects and anomalies on or very close to the surface. The two most commonly used methods are penetration detection and laser shear imaging. View >>

Date：2021-09-14 14:19:07

The test report should be tested by relevant testing institutions. Generally, the testing institutions need to have CMA and CNAs qualifications to produce effective test reports. According to Article 19 of the product quality law of the people's Republic of China, product quality inspection institutions must have corresponding testing conditions and capabilities, and can undertake product quality inspection only after passing the examination by the market supervision and administration department or its authorized department of the people's government at or above the provincial level. Where there are other provisions on product quality inspection institutions in laws and administrative regulations, the provisions of relevant laws and administrative regulations shall prevail. So how to deal with the test report of general electronic components? What are the requirements? View >>