SEM sample preparation

SEM (Scanning Electron Microscope) sample preparation involves making a specimen suitable for detailed imaging. First, the sample must be cleaned to remove contaminants. If it's non-conductive, a thin metallic coating (like gold or platinum) is applied to prevent electrical charging. The sample is then mounted securely on a holder. In some cases, dehydration or drying is necessary to prevent moisture from interfering. These steps ensure the electron beam can interact effectively with the sample, producing high-resolution images of its surface topography and composition. Proper preparation is essential for obtaining clear, detailed SEM images.