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

Printed Circuit Board Assembly & PCB Design Forum

SMT electronics assembly manufacturing forum.

Impurities in Gold



Impurities in Gold | 6 October, 1998

Hello Everybody

Would anyone of you know about the impurities in the Ni/Au pad metallurgy (board side metallurgy) affecting the assembly of the chip on the board.

I was told that impurities in gold may lead to void formation in the solder bumps.

Any suggestions or guidance would be highly appreciated.

Regards Manish

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