Everyone has heard of the “7 Deadly Sins” that will, supposedly, lead one to Hell. There are also the “Deadly Sins” of SMT – there are more than just 7 – and they can make your assembly process a “hell on earth”.
During the course of our assembly process audits and troubleshooting work, we tend to see trends in the types of errors and problems. In other words, a lot of people are making the same mistakes. The resulting process problems wreak havoc with an impact on assembly yields ranging from 5 to 20%. In addition to this direct cost, there is also additional financial impact with regard to time spent reworking and repairing, the on corrective action by QC, Engineering and Management, and, of course, “do-over”.
This Coursebook, from the world-famous ITM Consultng workshop “The 10 Deadly Sins of SMT and Lead-free Manufacturing” identifies the “deadly sins” of SMT assembly, both for Pb-free and “leaded” processes. Besides the symptoms and consequences of each type of error, root-cause, rectification and prevention techniques will be presented. The workshop will, thus, provide the participant with an understanding of how to identify and correct the most common SMT assembly problems. It will include identification of vendor and source problems including components and materials as well as design related problems.
• Utilization of process feedback data
• Design for manufacturability and assembly
• In-process inspection and AOI
• Solder paste selection
• MSD control issues
• Procedures and documentation
• Stencil printing
• Component placement issues
• Reflow soldering issues
• Frequent wave soldering issues
• Line inefficiencies
• Lead-free specific process “sins”