Invention Grant
- Patent Title: Scatterometry target and method
- Patent Title (中): 散射靶和方法
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Application No.: US12121428Application Date: 2008-05-15
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Publication No.: US07808638B2Publication Date: 2010-10-05
- Inventor: Christopher F. Bevis
- Applicant: Christopher F. Bevis
- 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: G01B11/00
- IPC: G01B11/00

Abstract:
Embodiments of the invention include a SCOL targeting groups configured to increase target to target separation and thereby increase target utility to simultaneous exposures to multiple illumination dots and associated inspection methodologies. The embodiments of the invention further relate to apparatus for projection simultaneous illumination dots onto different targets of the same targeting group on a wafer to conduct multiple simultaneous target inspections. Embodiments of the invention further relate to methods used to inspect SCOL targets using simultaneous illumination dots directed onto different targets of the same targeting group to conduct multiple simultaneous target inspections.
Public/Granted literature
- US20090015821A1 SCATTEROMETRY TARGET AND METHOD Public/Granted day:2009-01-15
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