Some time ago, I mentioned that I was working on a consensus of the status of Pb-free/RoHS-compliant assembly. My hope is to find data and facts that will support the consensus. I am making progress, but at this time I would like to share the subtopics in the consensus. Look them over and see what you think:
1. Was/is lead-free electronics/RoHS needed to protect the environment?
2. Is Pb-free solder easier and safer to recycle than Pb-containing solder?
3. How has the increased use of tin and silver affected their supply and price?
4. How much did it cost to implement Pb-free/RoHS-compliant electronics?
a. What is the cost adder to a typical Pb-free product?
5. What are the process challenges of Pb-free assembly? Are these challenges being addressed? If so, how?
6. What is the reliability of Pb-free vs, leaded electronics for commercial applications (e.g., 0°C to 100°C thermal cycle, drop shock, etc.)?
7. What is the reliability of Pb-free vs leaded electronics for harsh environment/military applications (e.g., -55°C to 125°C thermal cycle, other Mil stress tests)?
8. What is the threat of tin whiskers, tin pest and other similar Pb-free related reliability phenomena?
9. What is the status and need for halogen-free assembly?
Help me by suggesting topics that I have left out.