Electronics Forum | Fri Sep 05 13:49:04 EDT 2008 | gregoryyork
Tell the board shop to increase the cure temp of the resist as it is undecured especially if you have waxy/greasy resiues on the board and a brown tar like substence in the solder wave itself. If undercured then solder will not flow off the resist pr
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 | Thu Aug 28 08:31:55 EDT 2008 | grics
Sorry for the confusion... "WML" is a who... Wave Master Larry... He is a person on the forum who has a degree from Soltec? I don't remember... I was hoping he would have left a comment or some info that we could all learn by. (I am not sure how thi
Electronics Forum | Thu Aug 28 12:18:03 EDT 2008 | grics
Why yes, I regognize all the best. WML, I have an idea... I am going to call it, the Dunker. Instead of anyone foaming, I will get the wave operators to throw the boards into a rubbermaid tub full of flux/gasoline mixture and send through to the wav
Electronics Forum | Thu Aug 28 11:02:28 EDT 2008 | omid_juve
we have two similar pcb from two different pcb manufacturer one of them passed the wave soldering without any short circuit and residue and another one passed it with many residue . don`t you think that the type of solder mask from these two pcb manu
Electronics Forum | Fri Aug 29 14:57:24 EDT 2008 | wavemasterlarry
What, Listen. Everyone know wave solders catch fire from time to time. I've only been a part of these fires a coupel times. Less than the number of fingers on my hands, so I don't think it's any different then anyone elses. Plus I havn't pulled o
Electronics Forum | Wed Mar 24 10:43:59 EST 1999 | Tim
Hi, I have a customer who's electronic assemblies produce RF. He is insisting upon aqueuos cleaning. We switched to a no clean solder years ago and no longer have an aqueous system. Is aqueous cleaning necessary to eliminate 'cross talk' of the s
Electronics Forum | Tue Jan 30 18:25:25 EST 2018 | aqueous
This is one of the most common questions I get asked. Why clean no-clean flux. It was stated earlier that no-clean residues are benign. This may or may not be accurate. It depends on several factors including the reflow process. In a perfect world, t
Electronics Forum | Tue Jan 30 07:29:21 EST 2018 | charliedci
I believe the correct statement (I've been told) is "the process is no clean". The solder paste is "low residue". As a CM, in the past we had customers that insisted on a wash after soldering. We used DI water with a saponifier which had mixed result
Electronics Forum | Thu Feb 01 17:34:45 EST 2018 | Mike Konrad
Thanks for the kind words Dave. At no point in my reply was I trying to sell anything. I apologize to anyone who believes otherwise. I agree with the poster, if assemblies are going to be cleaned, consider a flux designed to be cleaned. While this is
