- Patent Title: Transparent film error correction pattern in wafer geometry system
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Application No.: US15649259Application Date: 2017-07-13
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Publication No.: US10571248B2Publication Date: 2020-02-25
- Inventor: Helen Liu , Andrew Zeng
- Applicant: KLA-Tencor Corporation
- Applicant Address: US CA Milpitas
- Assignee: KLA-Tencor Corporation
- Current Assignee: KLA-Tencor Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Suiter Swantz pc llo
- Main IPC: G01B11/06
- IPC: G01B11/06 ; G01B11/24 ; G01N21/84 ; G01N21/956 ; G01N21/95

Abstract:
A system includes one or more wafer geometry measurement tools configured to obtain geometry measurements from a wafer. The system also includes one or more processors in communication with the one or more wafer geometry measurement tools. The one or more processors are configured to apply a correction model to correct the geometry measurements obtained by the one or more wafer geometry measurement tools. The correction model is configured to correct measurement errors caused by a transparent film positioned on the wafer.
Public/Granted literature
- US20180195855A1 Transparent Film Error Correction Pattern in Wafer Geometry System Public/Granted day:2018-07-12
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