Electronics Forum | Mon Jun 05 14:10:54 EDT 2000 | C.K.
Dave: Thanks for you Earl-Moonesqe explanations. To answer your 3 questions below: * If there�s no flux in the via, why does the sodder flow? I thought it was the flux that removed corrosion to increase wetting that allowed
Electronics Forum | Tue Aug 22 05:10:56 EDT 2000 | Wolfgang Busko
Ron:It�s tricky to get what you want with this foamfluxers espacially using pallets. They got to be cleaned regularly. Most of the time excessive residues are removed using brushes which adds another process step. It should be better using a sprayflu
Electronics Forum | Thu Dec 21 08:45:40 EST 2000 | Hussman
I've been asked to "heat up the oven profiles" to "burn off" the excessive flux so our vision equipment can inspect solder joints. 1. I am using Multicore SN 63 no clean solder paste. 2. We use CR Technology Vision Inspection. Before I get too
Electronics Forum | Tue Sep 25 15:48:34 EDT 2001 | mparker
Scavenge all the old solder off the board and the chip. Micro screen paste to the chip. As far as thickness, check your aspect ratio to determine the spec. Eliminate just one variable at a time to get to the root cause. Start by not using the tacky
Electronics Forum | Mon Oct 01 04:01:08 EDT 2001 | wbu
You got the right feeling for that I guess but what if somebody else is doing your trick, is it still repeatable? Personally I wouldn�t trust that method more than the brushing. Did you try the dipping method ? The thing from Dave with this "card-com
Electronics Forum | Tue Feb 24 09:47:45 EST 2015 | rgduval
Well, since you're looking at a water soluble flux from AIM, I'm guessing you wash the boards before you conformal coat them. Thus, I wouldn't expect any interaction between the excess flux that you're washing off of the boards and the Humiseal that
Electronics Forum | Fri Jun 07 05:19:23 EDT 2019 | gregoryyork
dont usually see this unless the Rosin hasnt been hardened due to low reflow or excessive pressure on blades squeezing flux out so you have flux rich areas. Are these boards also flow soldered?
Electronics Forum | Fri Mar 17 21:44:14 EST 2000 | sosina_outry
Daren: suggestion from a friend of mine 1. Is residue on the top or bottom of the board? If on the bottom, then you might need to do solder dedross. if on the top, you might need to check 1. after spray flux, check for any excess flux on the top of
Electronics Forum | Sat Oct 20 14:18:49 EDT 2012 | davef
I've been in shops with a flux containment pan under the wave fluxer. While I'd rather see excess flux in a containment pan than on the floor, but I'd prefer to see flux applied precisely to eliminate the need for either using a containment pan or cl
Electronics Forum | Fri Mar 21 08:56:29 EST 2003 | russ
Is it possible that the flux you used, if applied in excess could have caused the balls to "blow out". I have seen this in the past and it was related to the type of flux we were using and the amount. Russ
