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Thread: A question about scanning electron microscope

  1. #1 A question about scanning electron microscope 
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    Hi, does anyone know etching is required for SEM analysis and why?Thanks.


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  3. #2  
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    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.


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  4. #3  
    Forum Ph.D.
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    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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