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Scanning Electron Microscope (SEM) is a type of microscope used to image surface morphology and material composition at high resolution. Unlike optical microscopes, it operates using an electron beam instead of light, enabling detailed images at the nanometer scale. Due to these features, it has broad applications in materials science, biology, chemistry, physics, electronics, and many engineering disciplines. Principle of Operation of SEM SEM is a system that generates images by detecting elect