Chemical-mechanical processing slurry and methods
First Claim
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1. A chemical-mechanical polishing composition comprising:
- liquid carrier,about 0.5 to 12 weight percent abrasive particles comprising highly irregular-shaped fused silica abrasive particles, wherein at least half of the surfaces of the highly irregular shaped fused silica are non-rounded, non-smooth, bumpy, or rough, and have a cornered or angular edge,the composition further comprising one or more of a metal ion accelerator, stabilizer, nickel complexing agent, chelating agent, and pH control agent, andoptionally, an oxidizing agent.
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Abstract
Described are chemical mechanical processing (CMP) compositions and related methods, including compositions and methods for polishing nickel-containing substrate surfaces such as nickel phosphorus (NiP) surfaces for hard disk applications, wherein the compositions contain highly irregular-shaped fused silica abrasive particles.
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Citations
10 Claims
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1. A chemical-mechanical polishing composition comprising:
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liquid carrier, about 0.5 to 12 weight percent abrasive particles comprising highly irregular-shaped fused silica abrasive particles, wherein at least half of the surfaces of the highly irregular shaped fused silica are non-rounded, non-smooth, bumpy, or rough, and have a cornered or angular edge, the composition further comprising one or more of a metal ion accelerator, stabilizer, nickel complexing agent, chelating agent, and pH control agent, and optionally, an oxidizing agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification