BODE FINGERPRINTING FOR CHARACTERIZATIONS AND FAILURE DETECTIONS IN PROCESSING CHAMBER

A non-transitory computer-readable storage medium stores instructions, which when executed by a processing device of a diagnostic server, cause the processing device to perform certain operations. The operations include receiving, from a processing chamber, (i) measurement values of a combined signa...

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Bibliographic Details
Main Authors ZHANG, Tao, UMMETHALA, Upendra V, BALAKRISHNA, Ajit
Format Patent
LanguageEnglish
French
German
Published 10.04.2024
Subjects
BASIC ELECTRIC ELEMENTS
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROLLING
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PHYSICS
REGULATING
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Summary:A non-transitory computer-readable storage medium stores instructions, which when executed by a processing device of a diagnostic server, cause the processing device to perform certain operations. The operations include receiving, from a processing chamber, (i) measurement values of a combined signal that is based on an injection of an alternating signal wave onto a first output signal of a controller of the processing chamber, and (ii) measurement values of a second output signal of the controller that incorporates feedback from the processing chamber. The operations further include generating, based on the measurement values of the combined signal and the measurement values of the second output signal of the controller, a baseline bode fingerprint pertaining to a state associated with the processing chamber. The operations further include storing, in computer storage, the baseline bode fingerprint to be used in performing diagnostics of the processing chamber.
Bibliography:Application Number: EP20210781698