Paper
26 March 2007 Lithographic characterization of evanescent wave imaging systems
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Abstract
Solid immersion lithography has been investigated as a successor to liquid immersion lithography as a single exposure option for the 32 nm node. Current demonstrations have been limited to interferometric imaging. We model the solid immersion lithography process rigorously, including the evanescent wave phenomena, in a commercial lithography simulator. The lithographic process space is explored for conditions such as process window, resist thickness, gap width, and gap material. Vector imaging, followed by full resist kinetics and development, is performed for all calculations. Mask error factor, CD through pitch, and other issues significant to lithography are explored.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Trey Graves, Mark D. Smith, and Stewart A. Robertson "Lithographic characterization of evanescent wave imaging systems", Proc. SPIE 6520, Optical Microlithography XX, 65203G (26 March 2007); https://doi.org/10.1117/12.712350
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Cited by 1 scholarly publication.
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KEYWORDS
Lithography

Immersion lithography

Solids

Imaging systems

Critical dimension metrology

Fiber optic illuminators

Photomasks

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