Electronics Forum | Mon Apr 16 21:21:12 EDT 2001 | davef
Two off the top of my head are: 1 Fluxing / soldering process is either not in-control or not capable. 2 Ionic materials on the board board or components compromise the LT reliability of the product.
Electronics Forum | Tue Dec 07 17:40:30 EST 2004 | davef
We'd suggest listening to your CSP component supplier. The standoff is too low. Check with your flux suppliers for the information you seek.
Electronics Forum | Fri Apr 07 17:17:55 EDT 2000 | Dave F
Ashok: You should select and use low residue tapes. But ya know, ya go out and research a great tape and if yer not careful, the buyer will second source ya and (surprise) ya got residues again. We have found that Lemme say this about Katon tape
Electronics Forum | Mon Aug 30 15:43:22 EDT 2004 | ryufoong
i will try on it. Thanks a lots. Regards, CHEN
Electronics Forum | Thu Sep 02 13:58:57 EDT 2004 | Chen
Hi Shean, Thanks for your advise but now currently we trying using the new chemical to remove the residue which recommanded by our supplier, so hopefully can be success. Thanks. Regards, Chen
Electronics Forum | Wed Sep 01 09:12:04 EDT 2004 | Chen
Hi Shean, Thanks for your advise. But what kind of chemical i needs to add inside to the washing machine when cleaning. Regards, Chen
Electronics Forum | Sun Aug 29 19:17:34 EDT 2004 | aqueous
Chen, It is always best to place one�s effort on determining the cause and content of the residue rather than trying to work around it. The first thing you must determine is the nature of the residue. Is it flux? In many instances, the residue is
Electronics Forum | Wed Jul 29 07:06:44 EDT 2009 | patrickbruneel
Deni, This looks more like webbing and not flux residue. Webbing is caused by not enough flux to protect the surface resulting in oxide webs sticking to the board surface. The insufficient flux can be caused by: - Weak flux foam head - Air knife p
Electronics Forum | Wed Sep 01 16:52:57 EDT 2004 | Shean Dalton
Hi Chen, This is largely dependent on what type of chemistry can successfully remove the residue, while being compatible with your cleaning equipment. Austin American Technology is happy to help you determine this, please contact me offline to disc
Electronics Forum | Fri Oct 13 05:21:08 EDT 2000 | Robert Steltman
Looking at the original post, it seems that the white residue is formed on the board after wave soldering and becomes evident when it has been left standing for a while. From what I understand, it seems that the solids content of the "no clean" flux
