Electronics Forum | Thu Jun 19 08:00:41 EDT 2003 | shaun
what type of oven do you have . How many zones? and what are the board attributes sizes. We run alot of doublesided reflow with BGA. maybe I can help
Electronics Forum | Thu Jun 12 03:34:23 EDT 2003 | sanjeevc
I would like to ask a question about SMT reflow > process. I did 10 pcs samples but all is fail. > The sample is double faces to have components > (up-side has 4 pcs of BGA and down-side has 3 BGA > and 2 QFP). And I saw some of BGA which is > t
Electronics Forum | Tue Mar 11 10:19:00 EST 2003 | yngwie
We ran doublesided SMT thru Glue and Wave process before and but faced a lot of skip solder. Then the customer told us that they have similar problem when they ran the board so what they did was they print the paste-dispense the glue- place the comp
Electronics Forum | Thu Jul 17 08:17:50 EDT 2008 | edmaya33
5 mil stencil.instead of round, use diamond aperture. RSS profile @ 215�C peak temp on balls(Sn/Pb), with a total of 3.5 minutes profile lenght.Ramp rate at 1.7�C/sec from ambient to 160�C. Consider also good cooling system on reflow. If rework proc
Electronics Forum | Tue Mar 11 11:22:38 EST 2003 | slthomas
Is a water-soluble flux based paste an option for the bottom side? Then you could wash the residues from the board before wave. That's the only way we've tried that process. The difficulty we had was with some disturbed joints, apparently from s
Electronics Forum | Thu Mar 13 15:13:17 EST 2003 | ruggi
That's a good idea...and to add on to it, you could wash after the wave, too--it really doesn't matter. A question about this though--unless your Customer specifically requires "clean", no-clean flux whether it's ugly or not, is permitted by IPC,
Electronics Forum | Thu Feb 14 09:24:58 EST 2013 | adrianus
Hello, We need information regarding the specifics of soldering Nickel Silver in a reflow process. Is there a specific process / flux / cleaning / Temperature curve / or whatever required in order to properly process parts from this material? Nicke
Electronics Forum | Thu Feb 14 10:52:18 EST 2013 | adrianus
Hello Dave, Many thanks for your quick reply, it certainly helps but do you have more specifics? For instance, like: Flux type, Temeparture curve, perhaps teh specific process has a name? Best regards,
Electronics Forum | Thu Feb 14 09:41:03 EST 2013 | davef
Look here http://www.smtnet.com/Forums/Index.cfm?CFApp=1&Message_ID=64413 BR, davef
Electronics Forum | Fri Apr 02 00:16:18 EST 2004 | Mike Konrad
There is no shortage of reasons to clean your boards. Soldering or reflowing your boards leaves �stuff� on them. This �stuff� is normally corrosive and conductive (some fluxes / pastes are more corrosive / conductive than others). In either case,
