Patent ID: 6402978
Filing Date: 2002-06-11
Classification: B24B,C03C,C09G,C09K,H01F,H01L

Abstract:
A magnetic polishing fluid composition comprising:colloidal size magnetic particles, wherein said magnetic particles have a mean particle size range from about 0.01 &mgr;m to about 0.15 &mgr;m; colloidal size polishing particles, wherein said polishing particles have a mean particle size range from about 0.01 &mgr;m to about 0.1 &mgr;m; at least one stabilizer for stabilizing said colloidal size particles; at least one oxidizer; at least one inhibitor for controlling the rate of oxidation of the oxidizer; and a carrying fluid; wherein the pH of said composition is in the range from between about 0.5 to about 5.5.