Electronics Forum | Thu Feb 08 11:06:36 EST 2001 | pr
You oven guys are SOOOO sensitive! I must agree though, the oven profile made nowhere near the difference that the Homeplate did, in our place.
Electronics Forum | Tue Jul 10 03:14:19 EDT 2001 | winnifred
Steven, Dave is right, wash them away. Since it is RMA paste, you may need to have a saponifier to go for Semi-aqueous washing. Or you may want to contact your supplier for a cleaner to wash it away with some agitation ( ultrasonic). Mag.
Electronics Forum | Wed Jul 18 02:05:30 EDT 2001 | winnifred
Steve, To clean the RMA processed boards, u hv to make sure u talk to the supplier first, then get the right saponifier and do semi-aqueous cleaning.
Electronics Forum | Thu Jul 12 10:32:59 EDT 2001 | Hussman
Wow, what a string of answers and nobody brought up the easiest way to eliminate solder balls. Yes, the paste being squished under the part does reflow and work it's way out to the side during reflow. I did a 5 week study on this (when I was a bori
Electronics Forum | Fri Jul 20 10:35:34 EDT 2001 | slthomas
David, I've thought about doing this also with no clean boards that were poorly cleaned following a misprint (and subsequently reprinted, populated, and reflowed) but have shyed away because of the potential for damage to components from the ultraso
Electronics Forum | Thu Jul 12 20:50:37 EDT 2001 | davef
One possible reason no one brought-up "too much paste" is that suggestion has been proffered so many times that it�s in the archives like the layers of sediment making-up Kataden. Another thing [we can argue about this], using home plate apertures w
Electronics Forum | Fri Jul 20 17:09:10 EDT 2001 | davef
Circuits Assembly magazine 09/99 "Defluxing with Ultrasonics" by Les Hymes. [There's more but I can't find it right now. I'll add to this as I find the junk, er very nice stuff.] J-STD-001C states that its OK to use ultrasonics for cleaning so lon
Electronics Forum | Tue May 11 15:52:03 EDT 2004 | Erhan
It's been 10 years since I started to use this editing method but never knew that it was called wendy-house style. :-) This is most probably the answer you're looking for if you're only having problems around the 1206 types. For QFPs, I used to redu
Electronics Forum | Wed May 12 07:53:28 EDT 2004 | solderpro
Lets make it easy on the poor guy, some are correct, check you profile but remember one thing most do not apply, it is important to match the type of paste you are using with the style of oven and configuration. send a direct email and I will give so
Electronics Forum | Mon Jul 16 21:29:03 EDT 2001 | davef
Cleaning RMA with water is bad news. It will turn your solder connections white and remove none of the RMA residues. There was a thread on removing RMA within the past two weeks on SMTnet. Check the fine SMTnet Archives. Additionally, look at M
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