Patent ID: 9132523
Filing Date: 2015-09-15
Classification: B24B

Abstract:
1. An apparatus for performing a Chemical Mechanical Polish (CMP), the apparatus comprising: a wafer processing platform, comprising: wherein the thickness-measuring device measures the thickness profile prior to the wafer being placed into the high-rate CMP platen; wherein the wafer processing platform is configured to transfer the wafer to the thickness measuring device prior to transferring the wafer to the high rate CMP platen and the low rate CMP platen; and wherein the polish recipe includes a first predetermined polishing time calculated to achieve a predetermined substantial within-wafer thickness uniformity stop for the high-rate CMP platen, a first predetermined wafer thickness stop for the low-rate CMP platen and a second predetermined polishing time to achieve a second predetermined wafer thickness stop for the buffing CMP platen.