Electronics Forum: flux residue (Page 95 of 116)

Solder mask peel from traces, post wave solder. Etchant residue?

Electronics Forum | Fri Jul 04 06:49:41 EDT 2014 | padawanlinuxero

Hi We had the same problem but it turns out the problem is with the supplier we use a water base flux too, supplier change the solder mask and it work. cheers!

IC marking unclear after pass reflow

Electronics Forum | Tue Apr 01 09:46:26 EDT 2008 | patsama_n

Thank you for kindness advice. From the result of IC after pass the reflow process. The color of letter will change to similar color of material compound of IC. Then when we inspection by AOI machine, we have many problem about high fault reject rate

adhesive on pads

Electronics Forum | Mon Apr 01 20:10:24 EST 2002 | davef

Oh. [Howabout if I smack you?] If ahma connectin� wif whut yer sayin�, you: * Don�t like the appearance of the glue slobberin� out from under the component even though there is no apparent glue on solderable surfaces. * Concerned about the hydrosco

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Tue Jan 05 20:29:32 EST 1999 | Steve Gregory

| A question for you all! | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clean under 20

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Wed Jan 06 09:55:22 EST 1999 | Chrys

| | A question for you all! | | | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clea

Re: Cleaning under, around, and through tight spaces

Electronics Forum | Tue Oct 12 17:24:27 EDT 1999 | Kevin Ham

| | A question for you all! | | | | Back in the good old days, we didn't always know how clean was clean. Much has changed. Much hasn't. | | | | My question concerns cleaning under, through, and around tight spaces. Way back when, we could not clea

Flux residues

Electronics Forum | Thu Nov 15 15:27:50 EST 2012 | davef

Finally, help for those searching for compatibility A new standard and guideline will make it much simpler for users to determine whether they’ve got the right chemistry to ensure compatibility. April 23, 2012 By Terry Costlow, IPC online edit

Ionic contamination vs selective soldering ?

Electronics Forum | Mon Mar 17 18:37:59 EDT 2008 | aqueous

We manufacture both bulk and localized ionic contamination testers. My answer is from the perspective of the cleanliness testing method. The issue with all bulk ionic contamination testers (Ionagraph, Omegameter, Zero-Ion), is that they test the en

Hand soldering rework fluxes

Electronics Forum | Thu Jan 14 16:32:58 EST 1999 | Dave Jurena

Hi all, I thought I'd use this forum to ask a couple general questions on fluxes for manual operations: First - Is it OK to use a wave soldering type flux (specifically OA)? Thinking about activation temperatures and the ramp rate of the wave solder

Re: Maybe a sprayfluxer will do

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


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