Electronics Forum: select and solder and flux (Page 2 of 31)

Solder and flux

Electronics Forum | Fri Oct 25 05:43:14 EDT 2002 | hanvictor

i have the experience like that, it should have something to do with solder paste.

Solder and flux

Electronics Forum | Tue Oct 22 17:23:35 EDT 2002 | Yannick

Hi, I wondering if someone know the anwser to that. I'm using a solder paste 63/37 and on the solder joint we have a tiny little layer or flux who is like crystalin. I try to play with my profile the get it off but I don't get much success. So D

Solder and flux

Electronics Forum | Wed Oct 23 07:32:18 EDT 2002 | Yannick

Sorry, the layer is made of flux.

Solder and flux

Electronics Forum | Tue Oct 22 20:40:34 EDT 2002 | davef

So, what is this layer made of?

Solder and flux

Electronics Forum | Wed Nov 06 05:13:01 EST 2002 | Dreamsniper

Crystalline flux if it is really clear should not be a problem. We were using Amtech paste before and we have the same results. Sometimes we mistakenly see it as a dry joint because of the reflections from the lighting of our Metcal inspection system

Wave flux and profiling

Electronics Forum | Wed Dec 20 04:43:36 EST 2006 | greg york

Any decent flux would volatise off with the heat of the wave unless absorbed into the solder mask. Test this by trying to clean in alcohol or common solvent aerosol, if it does not clean then it is probably Mineral Salts from solder mask fillers. Ano

Solder and flux

Electronics Forum | Wed Oct 23 08:40:20 EDT 2002 | davef

Yer not making this easy. What kind of flux? If no-clean flux, what controls are you using to assure you are: * Applying the correct amount of flux? * Properly activating the flux? If water washable flux, talk to us about your cleaning methods and

Solder and flux

Electronics Forum | Thu Oct 24 15:02:16 EDT 2002 | seand

Hello Yannick, Have you brought this concern up with your supplier? I would recommend speaking with your flux and paste provider to gain additional insight and recommendations for resolving the concern. Good luck, Sean D.

Wave flux and profiling

Electronics Forum | Mon Dec 18 23:24:50 EST 2006 | grantp

Hi, Yes, I would hate to resort to cleaning, but the product must be clean. We have been using palettes to keep most of the flux off the PCB, but there is still residue around the connectors. Does anyone suggest a good no clean flux to use with le

Wave flux and profiling

Electronics Forum | Mon Dec 18 14:36:09 EST 2006 | samir

Yikes!! In-line cleaning, to clean cosmetic and benign residues (from a NO-CLEAN) flux... You sure you can't switch fluxes? Another variable with residues is the solder mask. Depending on mask type (glossy, matte, semi-gloss, or semi-matte), will


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