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Electronics Forum | Thu May 31 10:52:31 EDT 2007 | patrickbruneel
A solder wire classified as L0 under IPC J-STD-004 means that the flux residues can be left on the board safely, and when you select this type of cored wire the intention is not to clean. You just select a solder wire that gives you an acceptable lev
Electronics Forum | Mon Dec 08 14:40:08 EST 1997 | Rin Or
| First Responses Lost: Please Repost | | Looking for info on process flow for 2 sided SMT with PTH | | on the top side. | | Both sides have large SMT ICs. I don't know what the best approach is; | | Epoxy, Paste in Hole, High temp paste. | | Any in
Electronics Forum | Tue Jan 22 15:33:20 EST 2013 | hegemon
Funny how things can be looked at from two sides. Not sure what would be considered low volume in the above post. Our first KISS machine has been producing product for well over 4 years now, double shifts every day, and about 50% of the saturdays
Electronics Forum | Mon Oct 12 03:09:06 EDT 2015 | akon63
Problem with cleaning these machines is once you > start it's easy to get carried away. ;) > > We > cleaned our SPA-400F a few months ago, had been > offline for a while as we were using our > SPA-250. > > It started as just a clean and to > r
Electronics Forum | Thu Mar 22 08:07:41 EST 2001 | CAL
Selective Laser Soldering? Beamworks and Speedline Electrovert Both demo'd units at APEX. I am partial to the Beamwork machine cause it was able to do BGAs. Are the QFPs acceptable? You mention cleaning the pads, Stencil aperture enlargement could t
Electronics Forum | Tue Nov 11 19:41:06 EST 2008 | gregoryyork
Thats the problem residual residue from HASL fluxes Lead free especially are worse.Very hygroscopic and out gass and produce dewetting as well over wave soldered boards especially. Leave iron on blown joint and will after several seconds fizz and pop
Electronics Forum | Tue Apr 17 01:53:51 EDT 2007 | Jane
http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel3/3476/14162/00649440.pdf?arnumber=649440
Electronics Forum | Tue Feb 10 18:39:06 EST 2009 | solderq
Quick production (no "pasty" phase) > High joint surface quality > Good flux action > No discolored, corrosive, or substantive residue of any kind > Lead-free is not a concern ;o) Any input/ideas are appreciated. Thanks!
Electronics Forum | Wed Jul 22 20:28:29 EDT 2020 | ldavis
Typically C type fingers are used when running boards directly and L type are used when running boards in fixtures/pallets.
Electronics Forum | Thu Jul 23 07:02:58 EDT 2020 | mcbasol
Dear Larry, Thank you for comment. In according to this, I heard that ıt is much useful to use L type finger when your PCB use without palet and the PCB is little bit heavy. What is your opinion about that?
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