Just reviewed the IPC SPVC report on the SAC alloys.  2 thumbs up on
that effort!!!  Now for the question at hand.

 

Seeing that there seemed to be little performance difference amongst the
3 alloys being considered, what if you go one step further.  Would all
of you think that an alloy such as 96.5 Sn/3.5 Ag would perform equally
well?  Sure the melt point is ~ 4 degC higher , but with some copper
contamination whether it be in a TH or SM, won't you think the
performance would be very similar to say SAC305?

 

Reason I'm asking is that I'm supporting some 96.5% Tin / 3.5% Silver
processes, and need to determine if I switch them over to SAC305 or let
them continue as they are.

 

Your thoughts would be appreciated. 

 

Rich K KEDS

 

 

 

 

 


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