Electronics Forum | Mon Mar 23 08:04:51 EDT 2015 | kris1128
Has anyone out there experienced selective soldering of a shield that is galvanized rather than tin plated? Our supplier is worried about tin wiskers with the bright tin finish. Soldering with SAC305 and a pretty weak no-clean flux. Sorry, I don't k
Electronics Forum | Mon Feb 12 02:02:25 EST 2007 | lococost
:s I'd be frightened too if I had SAC305 in my balls.
Electronics Forum | Mon Feb 12 02:17:32 EST 2007 | Wayne
Most of the semi-con is using SAC305 balls. Only the PCB assembly house feels the heat, but semi-con never feels any pressure.
Electronics Forum | Fri Aug 11 14:48:00 EDT 2006 | flipit
Hi, I live in Minneapolis,MN USA. I was watching the news last night and began to laugh. There was a news story on the benefits of silver in fighting infection and healing. I know first hand that silver fights bacteria. I set myself on fire worki
Electronics Forum | Wed May 03 11:26:57 EDT 2006 | George
Sheldon, Try using SN100C wire solder. It seems to extend the life of the tips plus solder joints look much better. We use both, clean and No-clean. We had the same problem while using SAC305... Thanks, George
Electronics Forum | Tue Feb 13 14:33:16 EST 2007 | CK the Flip
So the moral of the story is..... these SAC305 BGA's were accidentally mixed in with a Leaded process, the profile couldn't get hot enough due to Tg and Td constraints on a known good QFP on the same board, and consequently, the whole assembly fail
Electronics Forum | Tue Aug 22 09:57:15 EDT 2006 | picman
I must prepare formal report abaut comparison of the SM988 and SAC 305 wave soldering( as a .ppt file). May you help me please ?
Electronics Forum | Tue Jul 31 14:54:30 EDT 2007 | rpadilla
Hello AJ, The previous answers are correct; Sn has seen a spike in price ever since RoHs was implemented. Furthermore, the other alloys that have been used to replace Pb (because of RoHs) have also seen an increase in price. Sadly these material rep
Electronics Forum | Tue May 02 12:14:44 EDT 2006 | russ
You are exactly right, tip life is greatly reduced with the pbfree alloys. Some mafgrs are using an extra thick plating to reduce this. Next directive will be to determine what to do with all the tips now.
Electronics Forum | Tue May 02 12:25:08 EDT 2006 | choppy
I also heard that fluxes are more agressive in lead free alloys. Try maybe to clean your tip more often ?!?!?
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