Electronics Forum | Mon Jun 19 09:47:23 EDT 2017 | georgetruitt
You have a lot to think about! What does the flux manufacturer recommend as far as specifics like water temp or pressure? Do they recommend high temp di-water a detergent or saponifier? Do you currently have a cleaning machine, batch cleaner or inl
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
Electronics Forum | Fri Apr 22 05:01:19 EDT 2011 | azrina
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 a
Electronics Forum | Wed Jan 03 10:56:46 EST 2001 | Mike Konrad
Hi Dave, Water soluble flux has two opposite attributes. #1: It is the easiest flux to remove. #2: It is the worst flux to leave behind on a board. As for # 1, there are many de-fluxing systems out there that are very capable of removing water
Electronics Forum | Fri Feb 04 13:07:46 EST 2000 | Graham Naisbitt
Casimir This is not an easy subject. How did you process the test pieces? Was the flux used correctly at the required and recommended level? Did it see the wave properly? I am not an advocate of no-clean but we do have customers who coat over no-cl
Electronics Forum | Mon Aug 19 13:32:54 EDT 2019 | aqueous
ROSE testing a post-reflow assembly which has been reflowed using no-clean flux may not yield information that is helpful. No-clean flux technology works by encapsulating the flux's activators and other chemical constitutes that would be harmful if l
Electronics Forum | Tue Mar 09 14:53:16 EST 2010 | davef
Resistivity Of Solvent Extract [ROSE] is a bulk ion contamination [BIC] test method. It should thought of as a process control tool used to assess ionic contaminants. Don't consider it an acceptable tool for establishing 'GO-NOGO' limits. The stan
Electronics Forum | Thu Nov 04 10:29:10 EDT 2010 | 18424
Hello all, Has anyone used Kester 2331-ZX water soluble flux on selective soldering and expirienced a white film after soldering. I have seen this on and off for a few weeks now and believe it is a chemical reaction with the solder mask or improperly
Electronics Forum | Tue Aug 23 13:44:46 EDT 2022 | jojoled
Can anybody recomend a (LED-safe) flux removing/cleaning liquid, which can be used in ultrasonic cleaner in immersive application? After using one product I have been told, that none of the top suppliers of chemicals have this kind of liquid (subject
Electronics Forum | Tue Jul 27 12:45:34 EDT 2010 | kmtan
Hi expert, we have one lead frame product proposed to send to flux clean recently. The problem here is the frame is attached with high temp tape. After flux cleaning the frame, the tape turns out deformed in which we think it was due to chemical reac
