Acoustic characterization of two megasonic devices for photomask cleaning
Wet photomask cleaning relies on megasonic agitation to enhance the process, but there are many challenges to reliably maximize particle removal efficiency (PRE) and minimize damage. With the shift to pellicle-free EUV masks, photomask processes are more vulnerable to contamination, increasing the u...
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Claudio Zanelli ; Dushyanth Giridhar ; Manish Keswani ; Nagaya Okada ; Jyhwei Hsu and Petrie Yam " Acoustic characterization of two megasonic devices for photomask cleaning ", Proc. SPIE 9985, Photomask Technology 2016, 998524 (October 5, 2016); doi:10.1117/12.2243124; http://dx.doi.org/10.1117/12.2243124http://hdl.handle.net/10150/622537
http://arizona.openrepository.com/arizona/handle/10150/622537