CHUCKING PROCESS AND SYSTEM FOR SUBSTRATE PROCESSING CHAMBERS

The present disclosure relates to methods and systems for chucking in substrate processing chambers. In one implementation, a method of chucking one or more substrates in a substrate processing chamber includes applying a chucking voltage to a pedestal. A substrate is disposed on a support surface o...

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Bibliographische Detailangaben
Hauptverfasser: KUMAR, Bhaskar, SHAH, Vivek Bharat, BALASUBRAMANIAN, Ganesh, ZHAO, Jiheng
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present disclosure relates to methods and systems for chucking in substrate processing chambers. In one implementation, a method of chucking one or more substrates in a substrate processing chamber includes applying a chucking voltage to a pedestal. A substrate is disposed on a support surface of the pedestal. The method also includes ramping the chucking voltage from the applied voltage, detecting an impedance shift while ramping the chucking voltage, determining a corresponding chucking voltage at which the impedance shift occurs, and determining a refined chucking voltage based on the impedance shift and the corresponding chucking voltage.