21 March 2008 Status of EUV reticle handling solution in meeting 32 nm HP EUV lithography
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Abstract
Significant progress has been made over the past several years in developing extreme ultraviolet (EUV) mask infrastructure, especially in EUV reticle handling and protection. Today, the industry has converged to standardize the dual pod reticle carrier approach in developing EUV reticle handling solutions. SEMATECH has already established reticle handling infrastructure compliant with industry's draft standard, including carrier, robotic carrier handling, automated carrier cleaning, vacuum protection, and state-of-the-art particulate contamination testing capabilities. It proves to be one of the key enablers in developing EUV reticle protection solutions, through broad collaboration with industry stakeholders and suppliers. In this paper, we discuss our in-house reticle handling infrastructure and provide insights on how to apply it in EUV lithography pilot line development and future production line. We present particulate contamination free baseline results of state-of-the-art EUV reticle carriers, i.e., sPod, throughout lifecycle uses. We will also compare the results against requirements for 32 nm half-pitch (HP) EUV lithography, to identify the remaining challenges ahead of the industry.
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Long He, Long He, Stefan Wurm, Stefan Wurm, Phil Seidel, Phil Seidel, Kevin Orvek, Kevin Orvek, Ernie Betancourt, Ernie Betancourt, Jon Underwood, Jon Underwood, } "Status of EUV reticle handling solution in meeting 32 nm HP EUV lithography", Proc. SPIE 6921, Emerging Lithographic Technologies XII, 69211Z (21 March 2008); doi: 10.1117/12.773278; https://doi.org/10.1117/12.773278
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