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

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.


PreHeat PCB

Views: 460

#85355

PreHeat PCB | 31 July, 2020

Hi

To perform a BGA repair of a 0402 size component, on a 23" x 18" board, is it necessary to preheat the entire board or only the area where it will be repaired? Thanks!

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#85371

PreHeat PCB | 3 August, 2020

In general, no.

If you've got the right BGA rework equipment, you should be able to locally heat the part area that you're reworking.

Though, if you're finding defects related to thermal stress, it might not be a bad idea to pre-heat the rest of the PCB.

Cheers, ..rob

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