27 August 1999 Innovative integrated plasma tool for process and exhaust monitoring
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Vacuum-level problems in semiconductor process tools -- from leaks or contamination -- can significantly reduce product yield and tool availability if not detected quickly. Here we present a portable and compact plasma sensor which can monitor the fingerprint of effluent from the process chamber to the exhaust piping by optical emission spectroscopy. The device and tests to monitor and control semiconductor process are described. Further applications such as effluent treatment are tackled.
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Eric Chevalier, Eric Chevalier, Philippe Maquin, Philippe Maquin, } "Innovative integrated plasma tool for process and exhaust monitoring", Proc. SPIE 3884, In-Line Methods and Monitors for Process and Yield Improvement, (27 August 1999); doi: 10.1117/12.361362; https://doi.org/10.1117/12.361362


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