Phosphorus Crystal Formation

2017/2/2 20:41:48

We are having intermittent faults with BGA's soldered onto an immersion gold finish board with snpb solder. One potential cause I have been informed is the formation of phosphorus crystals. As I am not an expert in this area I have no idea if this is correct or not. Can anyone point me in the direction of any literature on this subject or offer advice on how to resolve this crystal formation.

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Igor

2017/2/4 20:41:48

Quite useful and impressive info. I have learned a lot from your article and I will keep on reading your sharing.

Darren

2017/2/4 20:41:48

I have share it with my classmates. They all appreciate it a lot.

Laszlo Toth

2017/2/4 20:41:48

It help me a lot. Thank you.

Davide Fontana

2017/2/4 20:41:48

Good resource for new beginners.

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