PCBA circuit board can be said to be the basis of electronic equipment. If the foundation is not smooth, the key components and semiconductors are not enough to fit together, and the automatic high-speed production often leads to the empty welding of components or the poor assembly state of components. If the problem is small, the electronic circuit will be unstable, and if it is large, it may malfunction or the circuit is short-circuited.
What is the cause of the PCB board quality problem?
1. Automated production of PCB board flatness affects production yield, especially in mass production line environment. Most of the new generation of electronic equipment production lines are through automatic SMT (surface-mount devices) loading and automatic reflow soldering components. The mechanism, from the loading of the tin-plated material, is carried out by the high-speed operation of the automation equipment. It is not able to cope with the manual processing, and even the layout of the large-scale miniature product structure, volume and components is more compact, which is one of the reasons.
2. The production process of automated assembly equipment, if the PCB is warped or deformed before the production process or assembly. As a result, the production quality and stability of the product are reduced, and the production line is forced to increase the cost for the rework of defective products and defective products. This is the second reason.
3. In the assembly process of pcba, the unevenness of the PCB board will not only lead to the positioning accuracy of the feeding, but the large-point power components may not be accurately inserted or mounted on the PCB surface. Poor conditions may result in the insertion of the wrong plug-in. In the event of failure, the automated production line is eliminated due to problems, resulting in a decline in production speed. This is the third reason
4. As for the components of the plug-in skew, the plug-in or soldering production may not be affected. Although the skewed components do not affect the function, the subsequent chassis assembly may not be installed in the chassis or the assembly and processing problems, and the manual re-processing will also occur afterwards. Heavy work costs. In particular, SMT technology is upgrading in the direction of high speed, intelligence, and high precision, but the PCB board is easy to warp, but it often becomes a bottleneck that hinders the production speed. This is also one of the reasons.
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