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Mar 12, 2015 | Hello. I would like to know the difference (if any) between water soluble flux and test socket cleaners (e.g. for Burn-In Board test sockets). As far as I know, they both remove oxides (tin & copper) with an activator, solvent and surfactants. Thank you!
Apr 23, 2011 | As am doing screening right now, am not measuring the total cleanliness yet, i just observe by takin
Apr 22, 2011 | Quick question, how are you measuring the effectiveness of the cleaning process to remove the flux?
Apr 22, 2011 | Beaker Scale Testing for flux cleaning chemistries/surfactant Hi, I am doing my master degree in flux cleaning process for flip chip assemblies and required to establish a new receipt for flux cleaning. currently, i am doing screening process for the parameters involve ; temp,pressure, surfactants, speed and angle of penetration using inline cleaning machine
Dec 10, 2010 | Causes of dewetting in conformal coating. Factors that influence dewetting usually involve non-ionic contamination such as: * Residues from board manufacture including silicone surfactants from solder resist & HASL rinse contamination * Component residues like mold release agents * Silicone oil
Jun 30, 2010 | Tim, try and incorporate an inline wash system. We use one with a surfactant and it cleans the "NO CLEAN" fluxes well. If you dont have an inline system, you can manual clean the boards with an surfactant and IPA. You can also do an ionic contamination test to ensure the cleanliness of the board
May 25, 2010 | Where on the assembly is the dewetting occurring? Factors that influence dewetting usually involve non-ionic contamination such as: * Residues from board manufacture including silicone surfactants from solder resist & HASL rinse contamination * Component residues like mold release agents
Nov 24, 2009 | I agree Patrick many people blame the assembly fluxes when it is some other hygroscopic chemistry left on the bare PCB such as surfactents from the HASL process these will do exactly what the guy reported in his post fail then cool down and pass everytime. If it is this type of chemistry
Sep 14, 2009 | Glycols, polyglycols, polyglycol surfactants, polyethers, and glycerine are used in water-soluble flux formulations because they provide excellent wetting of the board surface and dissolve the more active materials used in these formulations. [Printed Circuits Handbook, 43.4.1 Vehicle, CF Coombs
Oct 10, 2007 | .), Coilcraft does not perform tests using cleaning systems. Water based solvents may include neutralizers, surfactants, saponifiers, dispersants and anti-foaming agents, so Coilcraft cannot recommend a solvent (other than pure water and/or alcohol). Coilcraft cautions against the use of water
May 7, 2007 | Patrick I think peelback mechanics is more important than wave dynamics. :-) ...and "you can't talk to molten solder", but surfactant will listen.
Feb 19, 2007 | To: Wave Master Larry, You are correct in one respect. There is always dross on the wave, but it i
Dec 27, 2006 | Petrov, put the eggnog down and come out with your brains in the air.
Dec 26, 2006 | MS2 molten solder surfactant Hello! About Dross reducing(recycle)everyone can check the following patent. US PATENT # 616,161 1898 year!!!! Also, from the contemprorary patents, US PATENT # 6,942,791 and some others. If using MS2 molten solder surfactant, every week you will pay hundreds of dollars. By using one
Aug 8, 2006 | Hello all, just wanted to say that I've been using MS2 for 2 months now. Yes, it does eliminate dross. Yes, it is a little messy. However, we've seen a significant drop in our DPMO's on both leaded and lead free process. The solder is so much cleaner. I guess that's why they call it a surfactant
Jul 17, 2006 | through micron filters. Lead ions will also be found in the wash solution of an ultrasonic machine. The key element to determine if two separate machines are required is the rinsing ability of the chemistry. Surfactants (detergents) tend to rinse easily and thoroughly. Saponifiers and solvent
May 27, 2006 | black. This will allow you to fine tune your spray pattern to get the most even flux deposition and may allow you to reduce the volume you use and make your customer happy. Most fluxes are loaded with surfactants that allow them to wet nearly any surface, if the flux is applied in proper volume
May 11, 2006 | The MS2 Molten SOlder Surfactant web site is http://www.pkaymetal.com The product is not commercially available.
May 3, 2006 | tin or tin-lead works just fine for "tinning" them. LOL - 'Surfactant will listen'. that is funny.
May 3, 2006 | "and dip it in your solder bath for 10-20 seconds." Do you pre-tin them first or just dip them in regular solder? "You can't talk to molten solder, but surfactant will listen." "Remember, we're all in this together."
Apr 21, 2006 | Molten Solder Surfactant?- dross reducer Has anyone tried this MS2 molten solder surfactant? http://pkaymetal.com/dross.php4 I'd be interested to know your thoughts/concerns. Thank you; Kelly
Apr 15, 2006 | It works. It is a process chemical that works for leaded and lead free solders (two different products) take a look at the website http://www.pkaymetal.com and look at the MS2 Molten Solder Surfactant sub page. The reliability data
Mar 16, 2006 | I can tell you that I have been involved in new process chemical introductions for 40 years. I have
Mar 16, 2006 | I have some on order actually and should be getting it in a couple of days. I will keep everyone
Mar 16, 2006 | When you say you see an improvement in the process, what exactly does improve?
Mar 15, 2006 | Russ, I have sent you an e mail.
Mar 15, 2006 | When will I be able to try some in Colorado? Do I still have to wait for a local rep? Please E-M
Mar 15, 2006 | Greetings all, Dross has no value to the assembler. It actually degrades quality as a clean solder
Mar 15, 2006 | WELL I heard rumblings from the engineering dept that they wanna try this stuff here at my place of
Mar 15, 2006 | I tried MS2 for almost two weeks and I can see it works. MS2 is more a preventive tool rather than a
Mar 8, 2006 | The vendor is PK Metals. Their product is called molten solder surfactant.
Mar 3, 2006 | OZONE DEPLETING?
Feb 19, 2006 | A 70 reduction in solder useage is about what we are seeing. You are correct that there are machines
Feb 17, 2006 | I just tested last week and the only "issue" I found is for electrovert machines, that covers need t
Feb 17, 2006 | We have a great deal of new reliability data and we are preparing a full document that shows the sta
Feb 17, 2006 | Baer, Sara, et al., Thank you all for your responses. I apologize, we have a new line installed
Feb 14, 2006 | I stand corrected! That's what I get for listening to our drugged up Maintenance guy. He told me,
Feb 14, 2006 | Let me give some information on the use of MS2. The average wave solder machine will use one liter p
Feb 14, 2006 | �..... their material acts as a barrier to oxidation," is wrong Mr. N. The MS2 material "consumes" o
Feb 14, 2006 | I was able to escape from Riyadh last week to attend APEX. PK Metals actually had a booth where the
Feb 13, 2006 | Oh, by the way, it is compatable with any and all fluxes. It has no effect on flux and flux has no e
Feb 13, 2006 | Hi all, I will do my best to answer questions on MS2 here. I will try to check back at least every o
Jan 23, 2006 | MS2 molten solder surfactant what users of this surfactant think after a year of use. Guess I'll just have to wait... Later All
Jan 19, 2006 | Me again - I actually just talked with one of the guys over at P Kay and Dan Feinberg of P Kay will
Jan 19, 2006 | Hey guys - our lab has some data and photographs available for the MS2 for use in wave solder from s
Jan 16, 2006 | Danny, I'm hoping to hear more about this, too. I've seen it mentioned in a couple of other posts, b
Jan 16, 2006 | Has anybody tried this stuff? I was asked about it this morning and it sounds plausible from their
Nov 29, 2005 | the wet adhesive, but also breakdown the stencil adhesive and cause delamination. If it is a detergent (surfactant) it will remove the wet epoxy as a wetting agent (form a film between the wet epoxy and the stencil) and likely not attack the cured stencil epoxy. Another cause of delamination (other than
Nov 17, 2005 | change - try to use a newer chemistry with better activators, like Carboxylic acid, and fluxes with more surfactants content. If your budget permits, switch to spray fluxing as well to get a better and more controlled flux deposition and eliminate the need for titration and specific gravity checks
Oct 18, 2005 | I suspect the problem is a surfactant issue in your flux. I have seen where boards are fluxed, hit the solder fountain and come out like they never touched the solder. There was an inadequate surfactant between the solder and the PCB. I know you don't want to hear this but not all fluxes work