Patent ID: 9028708
Filing Date: 2015-05-12
Classification: C09G,C09K,H01L

Abstract:
1. An aqueous chemical mechanical polishing agent (A) comprising at least one type of solid particles (a1) finely dispersed in an aqueous phase, wherein the at least one type of solid particles comprise: (a11) a metal corrosion inhibitor, and (a12) at least one solid material selected from the group consisting of a synthetic polymer, a modified naturally occurring polymer, and an unmodified naturally occurring polymer, wherein said synthetic polymer is a thermoplastic polymer or a duroplastic material, wherein the metal corrosion inhibitor (a11) is a particulate material encapsulated in a shell essentially consisting of the at least one solid material (a12) or the corrosion inhibitor is a particulate material finely distributed in a homogeneous matrix essentially consisting of the at least one solid material (a12).