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Electroplating SnPb Plating Bath Contamination

Looking for information concerning SnPb electroplating of semiconductor leadframes (1/2 hard Cu). Especially interested in plating bath contamination as it might relate to Fe. Fred

Fred Bishel
Colorado Springs CO USA
2000

Where would the iron contamination be coming from? What is the basis of the tin/lead bath; MSA, fluoborate?

Tom Pullizzi
Falls Township, Pennsylvania
2000

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