Patent ID: 6126517
Filing Date: 2000-10-03
Classification: B08B,B24B,H01L

Abstract:
An apparatus for polishing at least two substrates, comprising:at least two polishing surfaces;a rotatable support member;at least two substrate head assemblies suspendable from said support member durring a rotaion of said support member and capable of holding on said substrate head assemblies respective ones of said substrates;a positioning member coupled to said rotatable support member to move said support member and thereby position a selected on of said substrate head assemblies over a selected one of said polishing surfaces; anda transfer station positioned beneath said support member and capable of receiving substrates, wherein said support member is positionable by said positioning member to position one said substrate head assemblies adjacent to said transfer station while simultaneously positioning another of said substrate head assemblies over one said polishing surfaces, said one adjacent substrate head assembly being operatively associated with said transfer station to selectively transfer a substrate from said transfer station to said one substrate head assembly and from one substrate head assembly to said transfer station.