Applied Materials, Inc.
Methods for In-Situ Chamber Monitoring
Last updated:
Abstract:
Methods for monitoring process chambers using a controllable plasma oxidation process followed by a controlled reduction process and metrology are described. In some embodiments, the metrology comprises measuring the reflectivity of the metal oxide film formed by the controllable plasma oxidation process and the reduced metal film or surface modified film formed by reducing the metal oxide film.
Status:
Grant
Type:
Utility
Filling date:
2 Dec 2020
Issue date:
3 Jun 2021