PROCESSES FOR TEXTURING A SURFACE PRIOR TO ELECTROLESS PLATING
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United States of America Patent
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Issued Date -
Dec 10, 2009
app pub date -
Jun 4, 2008
filing date -
Jun 4, 2008
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Abstract
Process for roughening a surface of a base metal substrate includes contacting the surface with an aqueous solution comprising oxalic acid, sulfuric acid, and hydrogen peroxide at a temperature and for a period of time effective to roughen the surface to an average roughness greater than 60 Ra, removing a modest amount of base material, and generating no narrow and deep crevices at all. The surface is roughened prior to application of an electroless coating onto the substrate.
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