Sputter coating in scanning electron microscopy is the process of covering a specimen with a thin layer of conducting material, typically a metal, such as a gold/palladium (Au/Pd) alloy. A conductive coating is needed to prevent charging of a specimen with an electron beam in conventional SEM mode (high vacuum, high voltage). A metal coating is useful for increasing signal to noise ratio (heavy metals are good secondary electron emitters).
Created: 2019-07-06 10:10:49 PDT (-0700)
Last modified: 2019-08-18 13:41:06 PDT (-0700)