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Solder Fillet Problem on 0603 chip capacitor

yeo

#2748

Solder Fillet Problem on 0603 chip capacitor | 13 October, 2000

Any one have any experience on solder fillet problem on 0603 chip capacitor ? The phenomenon is solder wetting on one terminal is very good and totally no solder wetting on the other terminal. The positing of capacitor is right at the centre of the pads without any shift. Could this due to mounting force or capacitor itself ? Please advise.

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#2749

Re: Solder Fillet Problem on 0603 chip capacitor | 13 October, 2000

If it�s in reflow, do you see where the solder is going? If it�s in wavesoldering, how�s the orientation of the parts?

Wolfgang

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#2750

Re: Solder Fillet Problem on 0603 chip capacitor | 13 October, 2000

We periodically see chip caps with poor solderability. Often terminations are missing plating.

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Philip A. Reyes

#2751

Re: Solder Fillet Problem on 0603 chip capacitor | 17 October, 2000

Yeo, These are possible rootcause of that defect and you can evaluate. 1. Orientation of the capacitor, maybe the cap is located behind big component. 2. Reflow profile, check the profile on that side. 3. Yes, check also the mounting force.

Philip

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