公开(公告)号：US20190002802A1

公开(公告)日：2019-01-03

申请号：US16064686

申请日：2016-12-20

Applicant: BASF SE

Inventor： Christian DAESCHLEIN ,  Max SIEBERT ,  Michael LAUTER ,  Piotr PRZYBYLSKI ,  Julian PROELSS ,  Andreas KLIPP ,  Haci Osman GUEVENC ,  Leonardus LEUNISSEN ,  Roelf-Peter BAUMANN ,  Te Yu WEI

IPC: C11D7/26 ,  C11D7/32 ,  C11D3/00 ,  H01L21/321 ,  H01L21/02

Abstract: Described is a post chemical-mechanical-polishing (post-CMP) cleaning composition comprising or consisting of: (A) one or more nonionic polymers selected from the group consisting of poly-acrylamides, polyhydroxyethyl(meth)acrylates (PHE(M)A), polyvinylpyrrolidone (PVP), polyvinyl alcohol (PVA), polymers of formula (I), and mixtures thereof, wherein R1 is hydrogen, methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, or sec-butyl, R2 is hydrogen or methyl, and n is an integer, (B) poly(acrylic acid) (PAA) or acrylic acid-maleic acid copolymer with a mass average molar mass (Mw) of up to 10,000 g/mol, and (C) water, wherein the pH of the composition is in the range of from 7.0 to 10.5.