[tinwhiskers] Re: ACE Develops Lead Tinning System
- From: Engelmaier@xxxxxxx
- To: lauhs@xxxxxxxxxxxxxxxxx, tinwhiskers@xxxxxxxxxxxxx
- Date: Tue, 3 Jun 2008 19:16:16 EDT
Hi John,
In your world—that is mass-produced consumer products, the pragmatic view has
to be that the Pb-ban is a fact of life. And with these products it is a fact
of life.
But what do I tell a client with a 24-layer 250-mil thick PCB with 4 power-
and ground-layers who has to put BGAs on it.
They do not fall under RoHS.
They do not sell in the EU, China, Japan, Korea, etc.
What I tell them is to re-ball to Sn37 AND use vapor phase—works like a
charm.
That is why people develop these systems to re-coat, re-ball, etc., because
there is a market for it, that cannot be met with Pb-free solders [they do not
want to go the Bi- or In-route].
See you in London at NEW.
Werner
Future workshops:
Reliability Issues with Lead-Free Soldering Processes, June 17, London
Interconnect Failures and Design for Reliability for PCB PTHs, June 17,
London
Pb-Free Soldering Processes—Survival, Quality, Reliability, August 18,
Orlando
Reliability Issues with Lead-Free Soldering Processes, September 22,
Schaumburg
Failure Mode and Root Cause Analyses Reliability (Fatigue, Brittle Fracture,
ENIG), September 22, Schaumburg
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