Author Archives: allaismt

Printed circuit boards (pcbs) are generally called printed circuit boards (PCBs). Printed circuit board proofing means that a small amount of samples are produced for testing before mass production, which also answers the question of PCB proofing sold in the market. Many electronic product manufacturers will find some professional PCB proofing manufacturers to cooperate with, […]

Circuit board, also known as PCB, is an important electronic component, the support of electronic components, and the provider of electrical connection of electronic components. Circuit board proofing refers to the trial production of printed circuit boards before mass production. It is mainly applied to the process that electronic engineers conduct small batch trial production […]

What materials should be given to SMT small batch SMD processing factory by OEM? In SMT processing, especially OEM, if there is insufficient processing materials provided by customers to electronic processing factory, it will waste processing time, thus affecting the delivery time. What information do you need to provide to SMT small batch SMD processing […]

I. Electrical test In the production process of PCB, it is inevitable that electrical defects such as short circuit, open circuit and leakage will be caused by external factors. In addition, PCB continues to evolve towards high density, fine spacing and multi-level. If the defective boards are not screened out in time and allowed to […]

SMT material throwing is usually called material throwing, that is to say, after the suction nozzle of the mounter picks up the material in the material tray, the material is thrown out in the process of moving to the PCB mounting position. Generally, the reason for this problem is that the suction nozzle pressure is […]

In fact, the micro-assembly technology of SMT proofing and small batch processing is a comprehensive technology of assembling various micro-components of electronic circuits on high-density multilayer interconnected substrates by micro-welding and SMT chip processing to form micro-electronic products. I. Multi-chip module The multi-chip component in SMT package is a kind of high-tech electronic product derived […]

Gas reflow welding is also called condensation welding. VPS refers to SMT SMD welding equipment that uses the latent heat released by the vaporization of fluorocarbon liquid as a heat medium to provide heat for welding. First-phase reflow thick film circuit. 1. The principle of gas-phase reflow soldering is that the liquid containing fluorocarbon can […]

For some customers, the design of PCB is seriously nonstandard, and they simply can’t tell whether it’s pad or via. Sometimes conductive holes are treated with pad, and sometimes key holes are treated with via. The design confusion leads to more errors. According to incomplete statistics, the problems caused by nonstandard design account for more […]

In fact, the displacement of components in smt processing is a bad phenomenon in SMT factory. With the development of science and technology and the improvement of people’s living standard, the pursuit of electronic products is becoming more and more miniaturized and precise. However, the traditional DIP plug-in in SMT small batch chip processing factory […]

Generally, there are two kinds of SMT processes, one is lead-free process and the other is lead-containing process. Everyone knows that lead is harmful to people, so lead-free process meets the requirements of environmental protection and is the general trend. Shenzhen Yingcheng Electronic SMT SMD foundry adopts lead-free technology. The difference between lead-containing process and […]