Electronics Forum: solder ball 0805 (Page 1 of 227)

solder ball

Electronics Forum | Tue Jun 04 17:21:22 EDT 2002 | jasonfang

I found solderballs are around chip components (on one side of middle area), I checked gerber data, solder paste of aperture on the stencil for these chip components have 5% reduction to solder land on PCB, shape of solder land are square, not home p

Solder Balls on 0805 capacitors

Electronics Forum | Tue Jun 27 10:36:45 EDT 2000 | Bill Bannister

We've been experiencing solder balls on 0805 caps. We have modified the reflow profile and had some success, but some balling still persists. The balls always form from under the cap between the lands. I measured the distance between the lands at .03

Re: Solder Balls on 0805 capacitors

Electronics Forum | Tue Jun 27 11:16:33 EDT 2000 | Christopher Lampron

Hello Bill, Ioan's idea's are good. One more thing that you may want to consider is using a "Home Plate" aperture on your stencil for the aforementioned caps. The idea is to put a smaller amount of solder paste directly underneath the component. This

solder ball

Electronics Forum | Tue Jun 04 22:54:32 EDT 2002 | davef

Solder balls are one of the most popular topics here on SMTnet. Search the fine SMTnet Archives for background. We like to wash solder balls from the board in our cleaner.

solder ball

Electronics Forum | Tue Dec 31 02:04:19 EST 2019 | sssamw

From the picture, I cannot see clearly solder ball violate electrical clearance or cause a short, maybe it is. What I can see is the solder paste has some misalignment although it doesn't printed in solder mask area, but actual position will reduce

solder ball

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

solder ball

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.

solder ball

Electronics Forum | agoesfirmanto |

Tue Dec 31 01:52:49 EST 2019

solder ball

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?

solder ball

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.

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