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In the manufacturing stage of SMT SMD factory, the processing technology of lead-free reflow oven has always been a very obvious problem in PCBA production and processing. In the process of SMT chip production, high-quality lead-free solder joints can be produced, which has irreplaceable active effect in the whole process of electronic processing. However, in […]

Many people identify the quality of PCB according to the color of PCB. In fact, the color of motherboard has little to do with the performance of PCB. PCB, it’s not that the taller you look, the better you use it. The color of PCB surface layer is actually the color of solder resist. The […]

PCBA solderless press-in connection technology, also known as press-in technology, consists of malleable deformable or rigid terminals embedded in two or more sides. A kind of “moderate press-in” connection produced by the matching of metallized holes of pcb boards, which produces close point contact between the terminal and the metallized holes, and realizes electrical connection […]

The blowhole caused by PCBA plate welding, which is commonly referred to as bubble, is generally caused by reflow welding and wave welding during PCBA processing. So how to prevent blowhole caused by PCBA production and processing welding? 1. baking Bake PCB and electronic devices exposed to air for a long time to avoid moisture. […]

In the traditional assembly process of electronic devices, the wave soldering technology is generally used for the welding of PCB components with PTH. There are many shortcomings in wave soldering: 1. High-density, fine-spaced chip-mounted components cannot be spread all over the welding surface; 2. More bridging and false welding; 3, need to spray welding flux; […]

Pay attention to the welding temperature After all, the material of aluminum substrate is different. In the case of welding, there is no doubt that we should do a good job in controlling the temperature level, so as to ensure the good welding effect and reasonably prevent certain problems.To ensure that the temperature can achieve […]

BGA for SMT processing is a kind of packaging method. BGA is the abbreviation of English BallGridArray, which is translated into Chinese as ball grid array package. In the 1990s, with the continuous development of electronic technology, the processing speed of IC has been continuously improved, and the number of I/O pins on integrated circuit […]

Definition of making high frequency circuit board High-frequency circuit board refers to a special circuit board with high electromagnetic frequency, which is used for PCB in high-frequency (frequency greater than 300MHZ or wavelength less than 1m) and microwave (frequency greater than 3GHZ or wavelength less than 0.1m) fields. It is a circuit board produced by […]

Nowadays, with people’s living standard getting higher and higher, there are more and more home appliances. Television is a very common electrical appliance in people’s daily life, and it is also an electrical appliance that almost every household has, with a very high popularization rate. So do you know what the logic board in TV […]

Nowadays, more and more circuit boards use surface mount components. Compared with traditional packaging, it can reduce the total area of circuit boards, facilitate mass production and processing, and have high wiring density. The lead inductance of chip resistor and capacitor is greatly reduced, which has great advantages in high frequency circuit. The inconvenience of […]