Electronics Forum | Wed Mar 28 13:14:38 EDT 2007 | amelara98
I am having problems with a product we receive from our overseas plant, where there is excessive "dullness" of solder joints/metal surfaces after running a board on a pallet through wave solder. Seems to be an issue of the pallet, as the solder appe
Electronics Forum | Wed Sep 07 10:41:24 EDT 2005 | D.B. Cooper
We've seen the same thing - leads of QFPs not as strong as we'd like them to be. In the past 4 years no problem, this Spring they start failing. Touch a solder iron to it and it solders fine. After crunching some data, we found that both QFPs fail
Electronics Forum | Tue Sep 06 10:20:33 EDT 2005 | slthomas
I love these stories. At my previous employer we experienced intermittent failures on an audio microprocessor assembly being used on a *new* product. This board had numerous microprocessors and complex firmware aboard. They discovered one PLCC on
Electronics Forum | Thu Jan 02 22:23:54 EST 2020 | jakapratama
Hello Pak Agus, Was there perhaps a change in solder paste? There has been confirmed occurrence in your case which happened in the work place I was before; all same parameter, equipment, material, and suddenly solder ball outbreak happened across al
Electronics Forum | Mon Dec 19 09:45:19 EST 2005 | russ
Is it full of solder? If so, It has quite a bit of value.
Electronics Forum | Mon Aug 09 04:15:33 EDT 1999 | Jacqueline Coia
I am having cleaning problems when processing PCB's which have TAIYO solder mask on them. After processing, hand soldering and cleaning, a sticky residue is remains, resulting in a cosmetically poor finish with tide marks etc. Other soldermasks do no
Electronics Forum | Sun Sep 30 00:54:06 EDT 2001 | chinaman
Has anybody heard about solder wires for rework with a V-notch in order to avoid solder balls which might be caused by shooting flux when getting hot. The notch is as deep to reach the core so that the flux can expand easily. I can imagine the effect
Electronics Forum | Sun May 09 12:59:29 EDT 2004 | Lloydy
Try using the wendy-house style on the specififc area's where you have solder balling. It's not always a good idea to do a global reduction to all apperatures.
Electronics Forum | Mon Dec 30 23:37:47 EST 2019 | agoesfirmanto
Hello All, I am a SMT Engineer from Indonesia, I am facing the problem of soldering balls in only one IC location, in other areas there are none. solder ball defect almost 30%. I have done several actions but failed to reduce the solder ball. 1.
Electronics Forum | Fri Sep 20 08:45:27 EDT 2019 | bukas
hello, I have been experiencing a strange solder defect lately. hope some of you may know what is causing it. it happens on same side of processor and there has been no changes in soldering process.
