Electronics Forum: saponifier (Page 16 of 19)

Unusual solderability issue

Electronics Forum | Thu May 06 13:06:36 EDT 2010 | dwonch

Unfortunately nothing ground breaking to report. The board shops analysis (SEM/EDS)showed high levels of carbon and oxygen, likely indicating an organic based contaminate. They are still stumped on where it is coming from. We recieved some boards y

Water Soluble Flux

Electronics Forum | Tue Nov 30 11:42:03 EST 2010 | hegemon

A simple question with very complex answers... But to simplify, you could start at this. Water soluble fluxes are cleaned using (typically) de-ionized water, using a spray wash method. Sometimes a saponifier is added to the water to help it get

Cleaning a No Clean

Electronics Forum | Thu Jan 13 19:23:05 EST 2011 | bandjwet

We have a customer whom we have built boards for. They want a "cleaner no clean look". The process uses a no clean Kester 256 SN63 solder paste. After reflow the "residue" noted by the client is too much. We have tried a few things. We are a small

Conformal Coating Issues

Electronics Forum | Wed May 09 03:13:06 EDT 2012 | umar

I had send my coating board to the test lab for adhesion coating test. 3 times send, the result 3times fail. The coating chemical use is Humiseal 1B31. The process is clean the boards at washing process use the Vigon A200 saponifier mix with DI wate

Re: Batch Cleaners

Electronics Forum | Tue Dec 08 16:53:41 EST 1998 | Ryan Jennens

Hey there Dave! We used to use a batch cleaner when we used water-clean paste. It was similar to a dishwasher, except that it had a digital menu for entering the number of wash cycles, water temp., amount of saponifier (we just used DI water),

Re: baked on water soluble flux residue betwwen fine pitch comp.

Electronics Forum | Fri Dec 01 17:03:57 EST 2000 | Dave F

Curious, very curious ... Residues � Where are these residues? [solder & laminate / mask, solder only, laminate / mask only] What is the result of your analysis to the residues? How do you know it�s a flux residue, rather than a chemical by product

Cleaning after repair.

Electronics Forum | Thu Jan 23 20:57:33 EST 2003 | davef

If the flux was not activated (ran in another area of the board), the flux should be removed from the board. Any Comments? A: We agree. In order for its �benigness� to take effect, NC flux is affected by: * Type of flux * Amount of flux * Proper ac

Cleaning after rework, no clean flux

Electronics Forum | Wed Feb 26 23:59:48 EST 2003 | Mike Konrad

Grant, No-Clean paste + IPA = White Residue! #1: Stop using IPA #2: Switch to either a solvent-based de-fluxing chemical or an aqueous-based de-fluxing chemical. If you are using an ultrasonic cleaner for your boards as stated, do not use sapon

Re: Batch Cleaners

Electronics Forum | Tue Dec 08 18:40:04 EST 1998 | Graham Naisbitt

Hi all, Only observation I would make is that it depends upon what you term as clean? Now isn't that an old thorny question. Care to comment? Regards Graham Hey there Dave! We used to use a batch cleaner when we used water-clean paste.

Re: More informations on water clean for CSP/BGA package

Electronics Forum | Wed Oct 06 11:40:41 EDT 1999 | Debbie Alavezos

Hi, Help! Could anyone help to enlighten me on this? Question: If I have a CSP/BGA package of size X by Y and the standoff gap between the component and PCB is Z, What is the maximum allowable Y/Z or X/Z that using a n


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