Galvanic Corrosion

08 Wet Processing, Cleaning & CMP

Definition

Electrochemical corrosion that occurs when dissimilar conductive materials are electrically coupled in the presence of an electrolyte, driving preferential dissolution of the less noble material.

Application

Controlled in wet cleans, plating, CMP/post-CMP cleaning, and packaging where mixed metals and conductive liquids can create galvanic cells.

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Galvanic Corrosion

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