01 Practical SMT manufacturing and Summary of welding quality problem analysis The Chinese name of PCB is printed circuit board, also known as printed circuit board, printed circuit board, circuit board, PCB circuit board, etc. It is an imp

With the miniaturization of electronic products, the development of high-density assembly of components on circuit boards has brought great challenges to SMT production and testing. From the detection method, it can be subdivided into: manu

1 Introduction Electronic products are assembled on a printed circuit board by various electronic components, and then combined into a complete machine. The most basic assembly process is printed circuit board assembly (PCBA for short) asse

one Classification of solder balls According to the number and size of tin beads, it can be divided into 4 situations. In the case of a single solder powder, the diameter is 10-40 m. If the size is 50 m or more, it is considered that multip

At present, electronic equipment is still used in various electronic equipment and systems with printed circuit boards as the main assembly method. Practice has proved that even if the circuit schematic design is correct and the printed cir

1. Frontier The development trend of electronic products is more and more functions, lighter weight, lower prices, and higher density. The requirements for components are more and more miniaturized, which is not only manifested in such as B

PCB (printed circuit board) is a printed circuit board, abbreviated as printed circuit board, which is one of the important parts of the electronics industry. As the substrates and key interconnects for electronic parts, the manufacturing q

There are four main methods of welding: Surface mount reflow soldering (SMT) Full board wave soldering Selective soldering manual welding Each method leaves a different degree of risk, resulting in the presence of flux residues, which may l