Electronics Forum | Wed Oct 11 18:30:21 EDT 2023 | kojotssss
Thanks for the opinions! You're right, it can't be solved with a stencil. I have made investigation, the problems are related to the quality of the component land surface, one of the terminal is oxidized.
Electronics Forum | Mon Oct 16 07:52:11 EDT 2023 | yannick_herzog
I would say that the paste never made it in this corner. Enclosed, you can see some different pads with this failure.
Electronics Forum | Mon Oct 16 07:09:02 EDT 2023 | georgegr777
my friend I sent you an email like you asked me. Thank you
Electronics Forum | Mon Oct 16 09:14:14 EDT 2023 | tommy_magyar
Is there only 1 pcba affected or more? Can try splitting the large apertures in 4. Check squeegee blades and paste quantity on stencil?
Electronics Forum | Mon Oct 16 16:33:34 EDT 2023 | emeto
Based on these pictures, please check Board/Stencil co-planarity. Sometimes there might be a distance/gap between them helping this phenomenon(solder mask might be too thick). Also decreasing print speed, might help to mitigate it. You might be too f
Electronics Forum | Mon Oct 16 18:03:52 EDT 2023 | previnmoore
im having a issue with the manncorp16.350 the pump is not coming on but its making the noise like its stuck any suggestions please and thank you
Electronics Forum | Mon Oct 16 18:51:14 EDT 2023 | alexv
It looks to me that you might have a poorly etched/polished stencil. Also, I would check separation speed and distance.
Electronics Forum | Tue Oct 17 23:07:15 EDT 2023 | unsung
Also check the ribbon cord connecting to the motherboard it's a PCI board.
Electronics Forum | Thu Oct 19 05:39:42 EDT 2023 | georgegr777
Thank you very much for the info. I cleaned the PCI card but nothing again. I will check for the power supplies and i will inform you.
Electronics Forum | Fri Oct 20 11:16:14 EDT 2023 | tommy_magyar
I agree, and also, assuming you have SPI (if the solder paste roll is measured by laser) the SPI should not fail a board for such amount of missing paste.
