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Activation after Nickel

We do perform electroless Nickel (sulfamate) over chips and then Tin/Lead(60/40), what would be the recommended activation process in between?

Alvaro Quesada
plating shop - Costa Rica
2005

I have no knowledge of an electroless nickel chemistry using nickel sulfamate. This salt is commonly used for electrolytic deposition. In any case, activation is normally done in a Woods strike (high chloride high free acid nickel bath).

Guillermo Marrufo
Monterrey, NL, Mexico
2005

I wonder if an alkaline cleaner wouldnt do the same also.

Khozem Vahaanwala
Saify Ind

Bengaluru, Karnataka, India

2005

An alkaline cleaner will do the same activation as a nickel strike solution only if it is a cyanide alkaline solution.

Sara Michaeli
Tel-Aviv-Yafo, Israel
2005

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