Patent ID: 6299795
Filing Date: 2001-10-09
Classification: C09G,C23F

Abstract:
A polishing slurry comprising polishing particles having a mean particle diameter of less than about 5 .mu.m, at least about 0.5 weight percent oxidizer, said oxidizer being selected from at least one of the group consisting of HNO.sub.3, Ni(NO.sub.3).sub.2, Al(NO.sub.3).sub.3, Mg(NO.sub.3).sub.2, Zn(NO.sub.3).sub.2 and NH.sub.4 NO.sub.3, a small but effective amount of at least one co-oxidizer selected from the group consisting of perbromates, perchlorates, periodates, persulfates, permanganates and ferric nitrate and balance water.