PCB Blogger-China PCB Factory,HOYOGO

        Reflow soldering is a soldering technology developed with the emergence of miniaturized electronic products. It is mainly used in the soldering of various surface mount components, and has become the mainstream of PCB assembly technology in PCBA factory. So what advantages does it have?   1. When PCB manufacturers perform reflow soldering, the components are not directly immersed in the molten solder, so the thermal shock to the components is small.     2. PCB factory can control the amount of solder applied in the leading process to reduce soldering defects such as virtual soldering and bridging. Therefore, the welding quality is good, the consistency of the solder joints is good, and the reliability i s high.     3. If the position of the solder on the PCB is correct in the pre-process, but the position of the component is deviated to a certain extent, and in the process of reflow soldering, when all the solder terminals, pins and c...

      If the PCB adopts reflow soldering  process , then the solder needs to be applied to the soldering part before soldering.   The main methods of applying solder to solder parts are the solder paste method, the pre-solder method, and the pre-formed solder method.       1. Solder  P aste  M ethod Applying solder paste evenly to the PCB pad pattern is the most commonly used method in the reflow soldering  process. The purpose is to ensure that the pads corresponding to the SMT components and the PCB achieve good electrical connection during reflow soldering, and have sufficient mechanical strength. There are two methods to apply solder paste: Injection  drop  coating method and printing coating method.  The injection drop coating method is mainly used in the development of new products or the production of small batches of products, and can be operated manually.  Although the speed is slow and the precisio...