Here you will find links to the "green" information from STMicroelectronics:

• Lead-free Conversion Program
  • Conversion Roadmap
• Lead-free Solutions
• Definitions & Regulations
  • ECOPACK COMPONENTS
  • E3/E4 Initiative
  • PCNs
• Publications
  • Whisker Formation
  • Whiskers on Lead-free plating
  • Whiskers testing reality or fiction
  • Pure tin plating qualification
• Quality & Reliability
  • Backward and forward compatibility
  • Moisture Sensitivity Level (MSL)
• Identification & Traceability
• Product Selector 
• Applications Notes
• Chemical Content
• Conversion Roadmap
  • Summary
  • Detailed
• ST Frequent Asked Questions 

For more information about STMicroelectronics products please visit the
STMicroelectronics Homepage