Electronics Forum | Wed Jan 08 06:01:58 EST 2020 | ameenullakhan
Hi Team, Thanks a lot for the valuable suggestions. Sorry was bit busy with some work. Will considered all your suggestions. Get the required details and let you know. Thank you once again. Regards, Ameen
Electronics Forum | Tue Dec 31 01:30:07 EST 2019 | sssamw
Do you have clear pictures show IC soldering and the solder ball? DO you have clear picture show the PCB pad?
Electronics Forum | Tue Dec 31 02:06:21 EST 2019 | sssamw
Yes, from the picture, it seems the gap between solder pad is very small, easy to have solder ball/solder bridge.
Electronics Forum | Tue Dec 31 09:24:22 EST 2019 | SMTA-Davandran
You may try reduction on stencil aperture on the particular IC location. Reduction on width and extend outer length may help to minimise solder ball issue. However, please look into stencil foil thickness to meet AR.
Electronics Forum | Tue Dec 31 10:06:37 EST 2019 | emeto
This one is easy. Go to 5mil stencil and reduce apertures in width. try to have 10mil aperture width and 10 mil distance in between. If you give us numbers we will be more precise.
Electronics Forum | Wed Jan 01 22:19:33 EST 2020 | sssamw
Solder ball attached on solder joint without violation minimum electrical clearance is acceptable. If your process parameter including stencil not changed, suggest you check if solder pasted being pushed out after IC placement, also check if solder j
Electronics Forum | Fri Jan 03 11:37:24 EST 2020 | emeto
Sometimes might be internal change with personnel. Issue is actually there, but if no one questions it-it is not an issue. With 7mil stencil there is a good chance to have solder balls. So were they registered or were they fixed/cleaned?
Electronics Forum | Sat Feb 06 07:14:40 EST 2021 | agoesfirmanto
Dear Sirs, very sorry being late reply after a year. Thank you very much for your advices, you are absolutely correct after reduce grounding pad size. No more solder ball issue. Thank you very much. highly appreciate all of your supports. Best re
Electronics Forum | Sat Feb 06 07:17:47 EST 2021 | agoesfirmanto
Hello Pak Zack. very sorry late reply Thank you for your sharing. Solder ball issue already solved. Best regards, Agoes
Electronics Forum | Mon Jun 21 01:32:20 EDT 2021 | yaxindatech
We can reproduce a prototype for you, if the defect can not be repaired. We are a PCB manufacturer in shenzhen China. It can be manufactured as a sample order in 2-3 working days.
