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immersion Gold life span

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#46531

immersion Gold life span | 8 January, 2007

hi' i need advise on immersion gold PCb shelf life.

1) what is the issue shelf life or expire for Immersion gold PCB? 2) How long we can keep the PCB? (with vacuum seal and without vacuum seal) 2) iF PCB expire, can we bake the immersion PCB? what temp & duration? 3) How long can we keep the pCB again after rebaking? (with vacuum seal)

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Board House

#46549

immersion Gold life span | 8 January, 2007

Hi Oswald,

Shelf life with ENIG if vacuum sealed and kept in controled enviroment would be 12 to 14 months.

Shelf life in shrink wrap - No recomended packaging, 6 moths.

If Shelf life goes over the 12 -14 months - Baking ? I would not suggest re-bagging after doing this. If you were to bake them I would do a solder check before putting anything expensive on the board.

Regards,

Mike

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