Electronics Forum: no solder fillets (Page 4 of 66)

Touch or no touch-up

Electronics Forum | Fri Feb 11 08:15:35 EST 2005 | davef

It sounds like you already know the answer. Hand soldering is much more stressful to a board than mass soldering, because: * It is more localized and there is no preheat. * It is more difficult to control. [Different connections require different h

no contact on BGA

Electronics Forum | Mon Jun 25 20:51:43 EDT 2001 | davef

Well, the paste must be OK, because other components don�t have this problem. The board must be OK, because other components don�t have this problem. So, it must be either the component or the profile. I�d speculate that you need to do some work t

castellations vs. no castellations

Electronics Forum | Mon Jul 26 18:28:10 EDT 1999 | Jon Prokop

Can anyone give me the virtues of SMT package castellations vs. no castellations with particular reference to the ruggedness and reliability of the solder joints? Any references or studies that you can point me to? Also, although I'm in favor of pr

Cleanning no clean residu

Electronics Forum | Mon Oct 22 11:47:59 EDT 2007 | brulal1

Thank you guys for your help, I do not clean any on my assemblies who are build by the SMT an wave soldering department, we do used liquid fluxes Kester 951 and cored wire keester 245, usually it�s for batteries connector, led, terminal and wire rap

Re: no clean rework

Electronics Forum | Wed Aug 18 15:52:21 EDT 1999 | DENNIS FOWLER

Gian You alarm me when you talk of white residues in a "no-clean" process. This should not happen. It sounds like you have compatibility problems between different residues and/or a poorly polymerised solder mask. Ther

Cleanning no clean residu

Electronics Forum | Fri Oct 19 13:57:17 EDT 2007 | Michael Konrad

Hi Rob, I must take issue with your statement �By definition, no clean solder can be not-cleaned�. All no-clean fluxes can be cleaned. Whether or not one cleans no-clean depends on a variety of factors. More than eighty percent of all post reflow

OSP with no clean fluxes

Electronics Forum | Fri Jun 19 18:44:23 EDT 1998 | Steve

Does anyone have wave solder experience using OSP and VOC free no clean flux?

Re: castellations vs. no castellations

Electronics Forum | Tue Jul 27 16:30:35 EDT 1999 | Earl Moon

Can anyone give me the virtues of SMT package castellations vs. no castellations with particular reference to the ruggedness and reliability of the solder joints? Any references or studies that you can point me to? Also, although I'm in favor of

cleaning of no clean flux

Electronics Forum | Wed Aug 10 07:55:21 EDT 2005 | ajaydoshi

we are using heareous F381, F352 no clean solder paste. specially in qfp for high frequency board we observe that cleaing / removing of ' no clean flux 'is require. if we do not clean same most of time after all test & envioumental test it shows pin

Re: castellations vs. no castellations

Electronics Forum | Mon Jul 26 19:32:03 EDT 1999 | Steve Gregory

Can anyone give me the virtues of SMT package castellations vs. no castellations with particular reference to the ruggedness and reliability of the solder joints? Any references or studies that you can point me to? Also, although I'm in favor of


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