Patent ID: 10570316

Abstract:
A chemical mechanical polishing (CMP) composition (Q) comprising (A) Colloidal or fumed inorganic particles (A) or a mixture thereof in a total amount of from 0.0001 to 2.5 wt.-% based on the total weight of the respective CMP composition (B) at least one amino acid in a total amount of from 0.2 to 1 wt.-% based on the total weight of the respective CMP composition (C) at least one corrosion inhibitor in a total amount of from 0.001 to 0.02 wt.-% based on the total weight of the respective CMP composition (D) hydrogen peroxide as oxidizing agent in a total amount of from 0.0001 to 2 wt.-% based on the total amount of the respective CMP composition (E) aqueous medium wherein the CMP composition (Q) has a pH in the range of from 6 to 9.5.