METHODS AND APPARATUS FOR WAFER DETECTION
Abstract:
Embodiments described herein relate to methods and apparatus for detecting and/or monitoring, e.g., abnormalities in wafer transfer and handling. In an embodiment, a method for wafer dechucking verification is provided. The method includes initiating a wafer transfer operation to transfer a wafer between components of a semiconductor processing system, the semiconductor processing system comprising a motor coupled to a lift pin, the motor configured to adjust a height of the lift pin above a pedestal, the lift pin for raising or lowering the wafer. The method further includes measuring one or more first parameters during the wafer transfer operation, comparing the one or more first parameters to one or more first pre-determined parameter ranges, and changing a force applied to the lift pin based on the one or more first parameters. Apparatus for wafer dechucking verification and non-transitory computer-readable mediums storing instructions for wafer dechucking verification are also provided
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