source of lead in IC

aamirali · Jul 2, 2013

What is source of lead in IC, even ROHS devices have some percentage of lead allowed

ErnieM · Jul 2, 2013

aamirali said:
What is source of lead in IC

It used to be from the leaded solder on the leads.

aamirali said:
even ROHS devices have some percentage of lead allowed

Achieving 00.000000 % of anything is unachievable.

t06afre · Jul 2, 2013

Ultra pure tin would not be smart to use as solder. And also very expensive. You can read this http://www.indium.com/images/blogs/drlasky/files/TinPestPaper0723Final.pdf

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