Patent ID: 6788988
Filing Date: 2004-09-07
Classification: G05B,H01L

Abstract:
A method, comprising:providing a lot of semiconductor wafers; performing a pre-process integrated metrology data acquisition relating to a first semiconductor wafer within said lot of semiconductor wafers, said pre-process integrated metrology data comprising data acquired using a metrology tool integrated into a processing tool used to process said semiconductor wafers; performing a first process operation on said first semiconductor wafer at least partially during the process of acquiring pre-process metrology data from a second semiconductor wafer within said lot of semiconductor wafers; acquiring post-process integrated metrology data relating to said first semiconductor wafer in response to processing of said first semiconductor wafer, said post-process integrated metrology data comprising data acquired using said metrology tool integrated into said processing tool used to process said semiconductor wafers; and analyzing said pre-process and said post-process metrology data for evaluation of said process operation performed on said first semiconductor wafer.