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公开(公告)号:US20250117754A1
公开(公告)日:2025-04-10
申请号:US18903907
申请日:2024-10-01
Applicant: Applied Materials, Inc.
Inventor: Ruiying Hao , Winston Chen , Jenn-Yue Wang , Cathy Cai , Weizong Xu , Lifan Chen , Balasubramanian Pranatharthiharan
Abstract: A method includes obtaining, by a processing device, first image data of a substrate including an epitaxial film. The method further includes applying a frequency domain filter to the first image data to obtain filtered image data. The method further includes determining a number of epitaxial defects represented in the first image data by performing feature detection on the filtered image data. The method further includes performing a corrective action in view of the number of epitaxial defects.