Patent ID: 7079975
Filing Date: 2006-07-18
Classification: G01B,G01N

Abstract:
1. A system for controlling a thin film deposition process, comprising: one or more thin film deposition components that deposit a thin film on one or more portions of a wafer; a thin film deposition component driving system for driving the one or more deposition components; a system for directing light on to the deposited thin film and collecting light reflected from the deposited thin film; a scatterometry system that detects structural irregularities associated with the deposited thin film by comparing reflected light data associated with the deposited thin film with a database comprising known thin film reflected light signatures; and a processor that communicates with the scatterometry system and the thin film deposition component driving system, the processor analyzes the deposited thin film by partitioning a conceptual mask into a plurality of grid blocks mapped on the wafer and determines deposition parameter adjustments for the one or more deposition components, the deposition parameter adjustments based at least in part upon data received from the scatterometry system.