First of all, let's look at the situation in SMT chip processing factories, which are generally divided into three types: expired, normal, and disassembled. Expiration usually occurs because there is too much inventory and it has not been consumed within a certain period of time. Products are updated and replaced at any time, and they are no longer used, and later they expire over time.
Normal sluggish materials are due to customers canceling orders or product upgrades, which are no longer needed and have not expired.
The quality of disassembled parts is generally relatively poor. Materials that need to be dismantled due to various circumstances such as PCB quality problems or incorrect BOM lists have gone through the high temperatures of reflow soldering and wave soldering, and have also gone through The quality of the rework process itself is very poor. Subsequent steps include tin removal, polishing, etc. Therefore, the quality issues of components must be strictly controlled in supply chain management to ensure product quality and throughput rate.
