Electronics Forum | Sat May 14 03:56:40 EDT 2005 | Mika
I am interested in RoHS "through-hole soldering": We have a problem with solder wetting and fillet during selective and wave soldering, with a Ni/Au PCBA!! Different fluxes has been tested, but this is really a big issue. Now; there is only a few fl
Electronics Forum | Sun May 29 11:42:45 EDT 2005 | Stephen
I will say that AOI units are not > magic boxes, you get out of them what effort you > put into them. Use them as process improvement > devices, not a magic machine to catch all your > mistakes. Mirtec's come close though, but you are right a
Electronics Forum | Wed Jun 22 08:19:05 EDT 2005 | cyber_wolf
Our TP9 UFP machine keeps nicking the edges of A12 tool tips. I think it is because the X axis is bouncing when it comes to the component pick position. When the X bounces it is causing the tool to hit the tape hold down arm. Has anyone ever encount
Electronics Forum | Wed Jun 29 17:58:12 EDT 2005 | GS
Hello, in Europe (SN100C sold by Balver Zinn) several solder pots have been filled by this alloy. On the paper I heard talking very well in terms of performance and good price, but not data are available ( as I know) about performance and if r
Electronics Forum | Thu Aug 25 09:56:08 EDT 2005 | james
I ran a profile on a dummy board with no parts and the peak temp is 220. The 220 is just the temperature of the board of course. With that BGA on it, I am pretty sure it sucks up alot of the heat. Also I am looking at the profile and notice that i
Electronics Forum | Thu Aug 25 10:07:02 EDT 2005 | Rob
From reading back through the post, it looks like you still need to establish whether the parts are actually being damaged, or just not soldered properly. If you're worried about heat damage get the manufacturers recommended reflow profile and che
Electronics Forum | Thu Aug 25 16:50:13 EDT 2005 | Mark
I have an application that requires soldering pieces of metal (copper plate and copper fins to make a heatsink). Each piece is about 1 lb. I cannot test it in our reflow oven (5 zone) since the piece is about 3" in height. Has anyone attempted to
Electronics Forum | Fri Sep 02 08:16:14 EDT 2005 | pjc
From Ray P. Prasad's article in this month's SMT magazine about the new IPC-7095 revison: ".....IPC does not have pull tests in any of its standards, and some reliability experts would prefer to keep it that way, pull tests are commonly used by some
Electronics Forum | Fri Oct 07 09:18:39 EDT 2005 | russ
If you're using non-lead free parts then you don't have a pbfree assembly so why worry about marking it anyway? We apply this artwork after the assembly has been completely engineered for lead free. Artwork can be covered up with mask or whatever if
Electronics Forum | Sun Oct 09 08:28:04 EDT 2005 | davef
First, no one knows very much about the relaibility of Pb-free assemblies, much less Pb-free solder with Pb-bearing components. Second, we do know that Pb-free components work with PB-bearing solder. Third, based on comparison laboratory testing,
