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           __   __    _____    _    _    __   _   
  ____     \ \\/ //  / ____|| | || | || | || | || 
 |    \\    \ ` //  / //---`' | || | || | '--' || 
 | [] ||     | ||   \ \\___   | \\_/ || | .--. || 
 |  __//     |_||    \_____||  \____//  |_|| |_|| 
 |_|`-`      `-`'     `----`    `---`   `-`  `-`  
 `-`

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Text this: Digital etch technique for forming ultra-scaled germanium-tin (Ge 1-x Sn x) fin structure