Invention Grant
- Patent Title: Feed forward of metrology data in a metrology system
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Application No.: US15090389Application Date: 2016-04-04
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Publication No.: US09903711B2Publication Date: 2018-02-27
- Inventor: Ady Levy , Daniel Kandel , Michael E. Adel , Leonid Poslavsky , John Robinson , Tal Marciano , Barak Bringoltz , Tzahi Grunzweig , Dana Klein , Tal Itzkovich , Nadav Carmel , Nuriel Amir , Vidya Ramanathan , Janay Camp , Mark Wagner
- 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: G01B11/14
- IPC: G01B11/14 ; G01B11/27 ; G01N21/95 ; G03F7/20 ; G01N21/21 ; G01N21/31 ; G01N21/41 ; G01N21/47 ; G01N21/64

Abstract:
A metrology performance analysis system includes a metrology tool including one or more detectors and a controller communicatively coupled to the one or more detectors. The controller is configured to receive one or more metrology data sets associated with a metrology target from the metrology tool in which the one or more metrology data sets include one or more measured metrology metrics and the one or more measured metrology metrics indicate deviations from nominal values. The controller is further configured to determine relationships between the deviations from the nominal values and one or more selected semiconductor process variations, and determine one or more root causes of the deviations from the nominal values based on the relationships between values of the one or more metrology metrics and the one or more selected semiconductor process variations.
Public/Granted literature
- US20160290796A1 Feed Forward of Metrology Data in a Metrology System Public/Granted day:2016-10-06
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