On Tue, 24 Jul 2007 23:42:47 +0100, Eeyore wrote:

The debate about lead free solders seem to be nearly as politically
charged as that about anthropogenic global warming and a casualty seems to
be useful data.

I've read plenty of comments to the effect that lead-free is less reliable
in the long term (vibration seems to be a key weakness AIUI - maybe also
thermal cycling) which presumably explains the exemptions for certain
categories, yet I've also seen some studies that claim it can out-perform
lead containing solders.

Is there any real hard and fast information out there that one can rely on
?

Graham

Dr Howard Johnson (High Speed Digital Design) had this article in
his email newsletter (and posted on his site). Interesting read.
Rollback RoHS: http://www.sigcon.com/Pubs/news/10_01.htm


--
Joe Chisolm
Marble Falls, TX