Patent ID: 11869754
Assignee: APPLIED MATERIALS, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 11:
12. A semiconductor processing system comprising:
a processing chamber;
a valve downstream of the processing chamber, wherein the valve is operable to change a pressure of the processing chamber; and
a control system configured to:
receive measurements indicative of a first pressure response in the processing chamber responsive to changing of at least one of a plurality of recipe parameters in accordance with a processing recipe being run on a first semiconductor substrate;
determine a first response error based on the first pressure response and a model pressure response calculated based on the processing recipe, wherein the model pressure response is generated as a feedforward control signal while running the processing recipe by a model that predicts a pressure in the chamber in response to changing the at least one of the plurality of recipe parameters; and
in response to determining that the first response error is greater than a threshold value, calculate an adjustment to an operation of the valve to be applied when changing the at least one of the plurality of recipe parameters in accordance with the processing recipe in a subsequent run of the processing recipe.