New soldering blog suggestion: BGA Reball

[G7PSK]

There is a lot of information on lead free soldering available at the American welding society (AWS)

http://www.aws.org/cgi-bin/swish.cgi?query=lead+free+solder&imageField.x=14&imageField.y=3

Why there is so much concern about lead in consumer electronics is puzzling 0.3% to 0.5% of the world lead is used in electronics and 60% is used by the battery and ammunition industry. It's dangerous to have lead sealed inside electronics but fine and dandy to have large chunks whizzing around in the air.