Why do PCB pads have defects after wave soldering? The following SMT processing plant will give you an analysis of the causes and solutions. ①The PCB design is unreasonable, and the pad spacing is too narrow. ②The pins of the plug-in components are irregular or the plug-in is skewed, and the pins are close to […]
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SMT patch processing quality is a sign of enterprise technology and management level A-980
22
Dec
Dec
SMT patch processing quality is a sign of enterprise technology and management level In today’s increasingly fierce competition for electronic products, improving the quality of SMT patch processing has become one of the most critical factors. The quality level of SMT patch processing is not only a sign of the company’s technology and management level, […]
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Causes and preventive measures of false welding of DIP plug-in and SMT patch welding A-981
22
Dec
Dec
Causes and preventive measures of false welding of DIP plug-in and SMT patch welding Analysis of Causes of Welding of DIP Plug-in and SMT Patch 1. The pad design is defective. There should be no through holes on the pads. The through holes will cause solder loss and insufficient solder; the pad spacing and area […]
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Dec
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With the rapid development of SMT processing technology, SMT chip processing has gradually replaced DIP insert processing. However, due to the large size of some electronic components in PCBA production and other reasons, the plug-in processing has not been replaced, and it still plays an important role in the electronic assembly processing. DIP plug-in processing […]
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The tombstone is also called the suspension bridge and the Manhattan phenomenon. It refers to the two surface-mounted components of the Korean end. After reflow soldering, one of the ends leaves the surface of the pad. The entire component is inclined or upright, like a stone monument, as shown in the figure. As shown, one […]
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The SMT production line is composed of many production equipment, each of which has a different job, but the ultimate goal of each piece of equipment is a printed circuit board. SMT’s production equipment is fully automatic, high-precision, high-speed, and high-efficiency. What equipment does a complete and efficient SMT production line mainly include? Usually, the […]
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Judgment criteria for solder joints in PCBA processing Due to the influence of some indispensable unstable factors, there are some problems related to the quality of solder joints. Generally, there is an acceptable range for the welding conditions of PCBA processing. If it exceeds a certain limit, the reliability of the product will be affected, […]
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The chip processing factory analyzes the reasons for the insufficient gloss of the solder joints in the SMT chip processing for you A-986
22
Dec
Dec
In SMT welding technology, many customers usually have requirements for the brightness of the solder joints. After all, the brightness of the solder joints will give us a bright feeling. In the process of patch processing and welding, there is no guarantee that the brightness of each solder joint can reach the sparkling degree. So […]
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How to distinguish the crystal oscillator of chip components in SMT chip processing A-987
22
Dec
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With the advancement of electronic technology, the plug-in crystal oscillators used on a large scale in the past have been replaced by small, thin and light chip crystal oscillators. The plug-in crystal oscillators that everyone knows before are generally 2-pin, but the SMD crystal oscillators are different. Let’s clarify the specifications of the chip crystal […]
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Reflow soldering is a key process in SMT chip processing. Various unexpected situations may be encountered during work. If the correct handling method and necessary measures are not taken, serious safety and quality accidents may be caused. 1. Matters needing attention ①The reflow soldering furnace must fully reach the set temperature (green light is on) […]