公开(公告)号：US20200294813A1

公开(公告)日：2020-09-17

申请号：US16094381

申请日：2016-04-27

Applicant: BASF SE

Inventor： Robert REICHARDT ,  Max SIEBERT ,  Yongqing LAN ,  Michael LAUTER ,  Sheik Ansar USMAN IBRAHIM ,  Reza M GOLZARIAN ,  Haci Osman GUEVENC ,  Julian PROELSS ,  Leonardus LEUNISSEN

IPC: H01L21/321 ,  C09K3/14 ,  C09G1/02

Abstract: 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, wherein the CMP composition (Q) comprises (A) Inorganic particles (B) an anionic surfactant of the general formula (I) R-S wherein R is C5-C20-alkyl, C5-C20-alkenyl, C5-C20-alkylacyl or C5-C20-alkenylacyl and S is a sulfonic acid derivative, an amino acid derivative or a phosphoric acid derivative or salts or mixtures thereof (C) at least one amino acid, (D) at least one oxidizer (E) an aqueous medium and wherein the CMP composition (Q) has a pH of from 7 to 10.

公开(公告)号：US20200299547A1

公开(公告)日：2020-09-24

申请号：US16765665

申请日：2018-11-12

Applicant: BASF SE

Inventor： Christian DAESCHLEIN ,  Max SIEBERT ,  Yongqing LAN ,  Michael LAUTER ,  Sheik Ansar USMAN IBRAHIM ,  Reza M GOLZARIAN ,  Te Yu WEI ,  Haci Osman GUEVENC ,  Julian PROELSS ,  Leonardus LEUNISSEN

IPC: C09G1/02 ,  H01L21/321

Abstract: The presently claimed subject matter is directed to a chemical mechanical polishing (CMP) composition comprising inorganic particles, at least one organic compound comprising an amino group and/or at least one acid group (Y), potassium persulfate, at least one corrosion inhibitor and an aqueous medium for polishing substrates of the semiconductor industry comprising cobalt and/or a cobalt alloy and TiN and/or TaN.