Category:PCB Assembly Solder Paste

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Solder paste is a material used in the manufacture of printed circuit boards to connect surface mount components to pads on the board. It is also possible to solder through hole pin in paste components by print solder paste in/over the holes.

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Good Solder Joint Failures Reply 2017-02-02 05:32:53
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Esteban

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Hope some of you out there can help me with this one. I am getting feedback from our test department that they are showing opens on solder joints which have visually good wetting. The touch-up operators confirm that the joint looks good. All they do is go over the joint(s) with an iron and it passes test. The frequency of this issue is very low (though no ppm data is available at this time) but it is enough for concern. There seems to be no pattern to location, part type or board. We use primarily no-clean solder paste. I have asked for samples from future occurances. These will be viewed with higher power scopes and x-rayed. Any comments are appreciated.

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Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

Benson

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Great thanks for your helpful info. Really useful.

James

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Very valuable!

javierdiazespana

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Excellent work. I am impressed.

TECNOSOLUZIONI

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I am doing a new project. Your posting is pretty good and useful to my job.Thanks a lot. Hope you can write again.

givisas

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Inictllgenee and simplicity – easy to understand how you think.
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