Printed Circuit Board Assembly & PCB Design SMT Electronics Assembly Manufacturing Forum

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SMT electronics assembly manufacturing forum.


Solder splash from component terminal

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#77090

Solder splash from component terminal | 12 February, 2017

Hi fellow professionals, Wondering whether anyone has experience with solder splashing from component terminal. Have identified the source using the component without printing solder paste on PCB.

Wondering the root-cause of the solder splashing from the component terminals. High temperature of the component solder itself.

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#77097

Solder splash from component terminal | 13 February, 2017

Could be that your temperature ramp up rate is too fast. This could cause the flux in the solder paste to burn off too rapidly. When that happens, it can expand as it heats up and burns off, causing the solder to get spread out from the pad.

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#77135

Solder splash from component terminal | 21 February, 2017

Thanks for input, dyoungquist. The condition here is without any flux or paste applied. Solder from component terminal started splashing by itself when put through re-flow.

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