Summary of Reasons for Welding Defects in Yantai SMT Processing

Pursuing quality is an essential requirement for modern enterprises, as the quality of products directly determines the survival of a company. This is especially true for SMT (Surface Mount Technology) placement processing in Yantai, given that circuit boards are high-precision products. With densely packed electronic components and intricate circuit pathways on the boards, any issue in any location can directly result in the failure of the circuit board's functionality. Poor soldering is one of the most common problems. Particularly, modern large-scale SMT processing factories rely on mechanical equipment for mass production. Although their precision and efficiency have improved compared to manual soldering, poor soldering phenomena still inevitably occur. Below, Yantai Zhan'ge Electronics summarizes several major causes of poor soldering on circuit boards:

We have summarized seventeen causes of poor soldering, ranging from common to rare, but each one is a possibility. These include: dry joints, short circuits, tombstoning, missing components, solder balls, lifted leads, tall components, wrong components, reversed components, reversed polarity, cold solder joints, misalignment, insufficient solder, damaged components, excessive solder, lateral components, and solder on gold fingers.

The above is a summary by Yantai Zhan'ge Electronics Co., Ltd. of the causes of poor soldering, covering virtually all aspects. Furthermore, for SMT placement processing factories, after completing mass production, detailed inspections are necessary. If poor soldering is found, the causes can be identified by referring to the summary provided above.