Use of a chemical mechanical polishing (CMP) composition for polishing of cobalt comprising substrates
申请人:BASF SE
公开号:US10899945B2
公开(公告)日:2021-01-26
Use of a chemical mechanical polishing (CMP) composition (Q) for chemical mechanical polishing of a substrate (S) comprising (i) cobalt and/or (ii) a cobalt alloy and (iii) Ti N and/or TaN, wherein the CMP composition (Q) comprises (E) Inorganic particles (F) at least one organic compound comprising an amino-group and an acid group (Y), wherein said compound comprises n amino groups and at least n+1 acidic protons, wherein n is a integer≥1. (G) at least one oxidizer in an amount of from 0.2 to 2.5 wt.-% based on the total weight of the respective CMP composition, (H) an aqueous medium wherein the CMP composition (Q) has a pH of more than 6 and less than 9.
一种化学机械抛光(CMP)组合物(Q),用于对包含(i)钴和/或(ii)钴合金和(iii)Ti N和/或TaN的基体(S)进行化学机械抛光,其中所述CMP组合物(Q)包含 (E) 无机颗粒 (F) 至少一种包含氨基和酸基(Y)的有机化合物,其中所述化合物包含n个氨基和至少n+1个酸性质子,其中n为整数≥1。(G) 至少一种氧化剂,其用量为 0.2 至 2.5 wt.- %,以混合物总重量为基准。(H) 一种水介质,其中 CMP 组合物 (Q) 的 pH 值大于 6 但小于 9。