1155 flux residues results

Electronics Forum: flux residues (Page 21 of 116)

Note for cleaning process

Electronics Forum | Thu Jun 26 13:55:56 EDT 2008 | dyoungquist

Water will not remove no clean flux residues because they are not water soluble. Solder paste with no clean flux should only be used when the assemblies do not need to be cleaned. That said, you can buy special cleaning solvents specifically for re

Flux residue cause high false reject at ICT

Electronics Forum | Wed Nov 29 01:25:53 EST 2006 | callckq

Dear All, I have 1 product that using solder bar from vendor called Asahi. After wave process, we found quite a sticky flux residue remain on the board. Eventually, have huge impact on our ICT fisrt pass yield(FPY). Current FPY is a the range of

Motherboard become NO POST when humidity increase to 90%

Electronics Forum | Fri Nov 20 09:07:43 EST 2009 | Sean

Hi all, Another thing that I would like to discuss here is that I used to come across few reports that mention about the flux residue has great impact on the PCBA impedance, especially when everything become smaller and smaller...I mean, when mother

HDMI Connector poor contact

Electronics Forum | Tue Aug 10 07:10:11 EDT 2004 | abraham

Praveen, White powder residue can be produced if you clean the No clean flux residue with isopropyl alcohol. Check whether you are using any IP for local cleaning. In case you want to clean the noclean flux residue ( as per the requirements of conta

Flux residual on joints of PIH

Electronics Forum | Wed Apr 27 04:16:54 EDT 2005 | Bryan

Hello everyone, During our PIH process we found much flux residual around or on the joints of PIH after reflow.We use the Indium smq92j no clean solder paste.but the residual is too much to be accepted.can anybody share with me some ideas to solve th

Issues with No Clean Resdue??

Electronics Forum | Wed May 10 11:03:04 EDT 2006 | Mike Konrad

I would be far more concerned about the flux residue intentionally left on the board than the �dust bunnies� sticking to the flux. In �perfect� no-clean applications, flux residue, although present, is nearly invisible and marginally conductive. In

Crystalized Flux under BGA

Electronics Forum | Tue Aug 10 15:28:54 EDT 2004 | Shean Dalton

Because the HASL process most deal with bare metals, HASL flux residues are generally more active than solder paste residues. Typically a Rosin Active (RA) flux is used in the HASL process. These flux residues should be removed from the bare board

White residue after cleaning with IPA

Electronics Forum | Sun Jan 26 09:32:55 EST 2003 | davef

But soon after cleaning and drying with IPA, we find a white residue formation. A: IPA will not nothing to clean your board. The white residue is exactly what you should expect. Search the fine SMTnet Archives for background. >How do we avoid th