Patent ID: 6556303
Filing Date: 2003-04-29
Classification: G01B,H01L

Abstract:
A system operable to form a thin film on a substrate, comprising:a thin film formation process chamber; a moving platform within the process chamber whereon the substrate resides; a signaling system configured to determine a position of the moving platform and to provide an indication thereof; one or more radiation sources configured to provide radiation that is directed at a surface of the substrate when the substrate resides on the moving platform in the process chamber; one or more radiation detectors configured to measure one or more properties of radiation scattered from the substrate and generate data relating to the one or more measured radiation properties; and a processor configured to receive the data relating to the one or more measured radiation properties at a timing which is a function of the indication provided by the signaling system, and to provide feedback control, based on the data, over one or more process conditions affecting a formation of the thin film within the process chamber.