COMPOSITION AND METHOD FOR POLISHING MOLYBDENUM
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United States of America Patent
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Issued Date -
Dec 12, 2013
app pub date -
Jun 10, 2013
filing date -
Jun 11, 2012
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Abandoned
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Abstract
The present invention provides compositions and methods for polishing a molybdenum metal-containing surface. A polishing composition (slurry) described herein comprises an abrasive concentration of an inorganic particulate abrasive material (e.g., alumina or silica) suspended in an acidic aqueous medium containing a water soluble surface active material and an oxidizing agent. The surface active material is selected based on the zeta potential of the particulate abrasive, such that when the abrasive has a positive zeta potential, the surface active material comprises a cationic material, and when the particulate abrasive has a negative zeta potential, the surface active material comprises an anionic material, a nonionic material, or a combination thereof.
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