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Thread: A question about scanning electron microscope

  1. #1 A question about scanning electron microscope 
    New Member
    Join Date
    May 2010
    Middle East Technical University
    Hi, does anyone know etching is required for SEM analysis and why?Thanks.

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  3. #2  
    Forum Professor
    Join Date
    Apr 2007
    In the circuitous haze of my mind
    Etching? Do you mean coating the object to be scanned in a material first?

    If so, they do that to induce a higher electron reflectivity so that the object is more visible.

    Of all the wonders in the universe, none is likely more fascinating and complicated than human nature.

    "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

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  4. #3  
    Forum Ph.D.
    Join Date
    Jan 2009
    You need to be more specific.
    But plasma or ion etching is used to clean surfaces of contamination routinely.
    etching is also used to examine samples thru the depth.
    Operated SEMs fo 35 years.
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