Electronics Forum | Fri Mar 24 11:45:47 EST 2006 | russ
thanks Rob, that really explained a lot to me. I definitely understand why it is important for the european countries. I never really thought the directive was bad in it's intentions. But you are right it is the implementation of this that is a f
Electronics Forum | Tue May 02 14:38:06 EDT 2006 | bhall
Currently I am using a water soluble solder paste and no clean wire solder. For awhile now I have been pushing to switch to no clean across the board. Can anyone give me an idea of how this will effect production? Switching to no clean will allow m
Electronics Forum | Fri Dec 01 07:41:25 EST 2006 | realchunks
For reflow, bump up your profile as hot as you can go as allowed by your paste manufacturer will allow. If you can change solder paste without too much red tape, several solder paste manufacturers make a transitional paste designed for mix of lead a
Electronics Forum | Thu Aug 27 11:35:07 EDT 2009 | davef
There are many possibilities: * Conformal coat is incompatible with surface residue on the board * Conformal coat is incompatible with solder mask on the board * Moisture is out-gassing from the board * Conformal coat is too thick and does not allow
Electronics Forum | Wed Sep 30 11:32:45 EDT 2009 | pbarton
What type of conformal coating are you using and are you allowing the coating to migrate under the device in question? If you are allowing the coating unbder the BGA the problem could be CTE of coating is much greater than that of the BGA balls/sold
Electronics Forum | Wed Jan 13 22:59:53 EST 2010 | goolash
The Central Controller software on our Quad IVc machine is refusing to allow me to add local fiducials. Essentially, I follow the manual's directions, and when I press 'N' for New, it asks me to enter the placement number. No matter what number I e
Electronics Forum | Thu Oct 28 15:53:27 EDT 2010 | dwonch
Ok, just to put closure on things I figured I should post the conclusion of this whole ordeal. We've acquired a new BGA rework station that allows us to get away without tenting our vias under the BGAs. This allowed us to change our PCB spec to rem
Electronics Forum | Mon Feb 09 09:45:16 EST 2015 | saoasasd
Thanks for the support Jax. Our current scenario: Baking - Not allowed for PCBs Washing - Not allowed Heat Cycles - 2 (Bottom and top side). It's a notebook board Our concern is related to solderability because OSP finishing will be seriously imp
Electronics Forum | Tue Sep 01 17:44:46 EDT 2015 | abisson
Hello to All, Is someone can refer me to an IPC standard where the maximum allowance of pcb stretch is mention? I've look into IPC-600, or 2222 or 2615 and I cannot find what I'm looking for. I will like to implement a pass/fail incoming inspection
Electronics Forum | Wed May 04 00:04:39 EDT 2016 | comatose
Loctite's new GC 10 paste allows for some pretty extended print cycles. I was skeptical, but the stuff doesn't seem to ever dry out. I've had overnight print to place cycles work at room temperature, and they spec a stencil life of three days. Might
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