Date：2022-02-28 13:38:00

The welding method is usually selected according to the following principles. The selected welding method must ensure the welding quality and meet the technical requirements of product design; At the same time, it can improve the welding production efficiency, reduce the manufacturing cost and improve the working conditions. According to the heating degree and process characteristics of the welding process, the welding methods can be divided into three categories. View >>

Date：2022-02-25 13:51:16

Reliability is an important quality index. By using various environmental test equipment to simulate various changes in the climate environment, accelerate the reaction of the product in the service environment, and verify whether it meets the expected quality standards in R & D, design and manufacturing. So as to evaluate the whole product to determine the reliability function of the product and the ability or possibility of the product to perform the specified function without failure in a certain time or condition. This paper has collected and sorted out some materials, and I hope this paper can be of great reference value to all readers. View >>

Date：2022-02-25 13:38:39

As we all know, product failure will cause serious economic losses and quality impact. However, PCB failure modes are diverse and the root causes of failure are also different. The main material of PCB is the composite of glass fiber and epoxy resin, which is divided into single panel, double-sided board and multilayer board. Therefore, how to quickly locate the root cause of PCB failure and optimize and improve the performance of products has become the focus of PCB industry. View >>

Date：2022-02-24 17:21:00

What is selective welding? Selective welding is one of the processes used in the manufacture of various electronic components (usually circuit boards). Typically, the process involves welding specific electronic components to a printed circuit board without affecting other areas of the circuit board. This is different from various reflow processes, exposing the entire circuit board to molten solder. In fact, selective welding can refer to any welding method, from manual welding to special welding equipment, as long as the method is accurate enough to use solder only in the required area. View >>

Date：2022-02-24 17:16:54

The power module is a kind of power converter, which can be directly welded and inserted into the circuit board. As the power source for the survival of modern science and technology, it has become one of the most critical components. The reliability of power supply will affect the reliability of equipment to a great extent. Therefore, the reliability test of power supply has become the premise of all parameters and performance guarantee. What are the reliability test items of power module? View >>

Date：2022-02-23 16:54:13

Failure refers to the failure of electronic components. The important components of various electronic systems or electronic circuits are generally different types of components. When it needs more components, it indicates that the complexity of its equipment is higher; On the contrary, it is low. Generally, the circuit fault is defined as the loss of the specified function of the circuit system. View >>

Date：2022-02-23 16:35:42

The core of electronic equipment is the circuit board, which is welded and assembled by various types of electronic components. If the equipment fails or has a short circuit, most of the reasons will be caused by the failure or damage of electronic components. Next, the third-party testing organization will introduce you to the fault judgment and testing methods of circuit board components. You may wish to continue reading. View >>

Date：2022-02-23 16:27:27

The development history of electronic components is actually a brief history of electronic development. Electronic technology is a new technology. In the 20th century, it has developed the fastest and used the most widely. It has become an important symbol of the development of modern science and technology. In order to promote the further development of electronic information technology, it is necessary to improve the reliability of electronic components. Therefore, it is very necessary to master the technology of failure analysis of electronic components. View >>

Date：2022-02-22 15:47:10

First, what is aging test? During the aging test, the components on the special aging circuit board will bear the pressure equal to or higher than its rated working conditions to eliminate any components that fail prematurely before the rated life. These test conditions include temperature, voltage / current, operating frequency or any other test conditions specified as the upper limit. These types of stress tests are sometimes referred to as accelerated life tests (a subset of halt / HASS) because they simulate the operation of components under extreme conditions for a long time. View >>

Date：2022-02-22 15:32:17

What is UV testing? UV test, also known as UV aging test, is a process of simulating various factors involved in the actual use conditions of products and strengthening the experiment of corresponding conditions. It can reproduce the damage caused by sunlight, rain and dew and obtain the service life of products in a short time. The equipment carries out the test by exposing the material to be tested to the controlled interactive cycle of sunlight and moisture and increasing the temperature at the same time. View >>