【 JJY 】 What are the causes of SMT solder beads?

SMTSoldering is a surface mount technology for electronic components.SMTWelding involves installing components on the surface of the circuit board and then usingSolder pasteWeld it to the board with the heat source. However, inSMTTin beads often appear during the welding process. Then it leads toSMTWhat are the factors involved in soldering solder beads? Now, let's have JJY solder Paste Manufacturer explain it:

SMTThere may be various reasons for the appearance of tin beads during the welding process. The following are some common factors that may cause tin bead problems:

1InSMTDuring the process, the solder paste used should have an appropriate squeezing force to ensure it is evenly distributed on the pads. Unstable squeezing force may lead to the formation of tin beads.

3The problem with the solder beads may be related to the design of the solder pads. The pad design should take into account an appropriate window opening to prevent solder paste from being squeezed out of the soldering area during the soldering process.

4The welding temperature is forSMTWelding is of vital importance. Both too high and too low temperatures can cause problems, including the formation of tin beads. Ensure that the welding temperature complies with the specifications recommended by the manufacturer.

5Low-quality solder paste may contain impurities or inappropriate particles or excessive oxidation, leading to the formation of solder beads. Choose high-quality solder paste and ensure it is suitable for specific applications.

6Contaminants on the solder pads, such as grease, dust or chemicals, may cause the formation of solder beads. Maintaining a good working environment and equipment can reduce the risk of pollution.

7Excessive squeezing may cause the solder paste to be squeezed out of the pad area, forming solder beads. Make sure the squeezing force is moderate, neither too strong nor too weak.

Shenzhen JJY Industrial Technology Co., Ltd. mainly engages in the production and operation of:SMTSolder paste manufacturers of solder paste, syringe solder paste, lead-free solder wire, wave soldering bar, automatic soldering wire, etc.