Scanning Electron Microscopy – SEM

Scanning electron microscopy (SEM) is a surface analysis technique frequently used to identify surface features of sub-micron size particles. With the diminishing working scales of materials used in various industries like microelectronics, SEM has far-reaching applications like semiconductor inspections, microchip assembly, failure analysis, and quality control. Laboratory experts at Infinita Lab assure the best use of SEM technique for routine and specific testing of your products, ensuring the best performance, reduced warranty costs, and high satisfaction levels.

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    Scanning Electron Microscopy

    Scanning electron microscopy (SEM) is a surface analysis technique frequently used in material testing labs to identify surface features of sub-micron size particles. It is best suited for the analysis of surface fractures, surface contaminants, microstructures, spatial variations in chemical compositions, and crystalline structures. It uses a focused beam of electrons, which is reflected or knocked off the surface or near-surface of the sample to generate high-resolution images. With the working scales in materials getting smaller in industries like microelectronics, SEM has far-reaching applications like semiconductor inspections, microchip assembly, failure analysis, quality control, etc.

    In the scanning electron microscope test, electron-sample interaction generates secondary electrons (SE), backscattered electrons (BSE), and characteristic X-rays. SE and BSE detectors are used to capture these interactions to visualize the samples’ morphological and topographical information in the laboratory. BSE images are also used for the rapid discrimination of the phases in multiphase samples. An Energy Dispersive X-ray Spectroscopy (EDS) detector within SEM is used in the testing labs to detect the characteristic X-rays and provide qualitative and quantitative elemental analysis of the sample. Environmental SEM (ESEM) is another variant of the scanning electron microscope test available for analyzing the samples containing water or other volatile substances. 2D elemental mapping and 3D reconstruction of samples are available with FIB-SEM technology.

    Scanning Electron Microscopy (SEM) Common Uses

    There is a large variety of scanning electron microscope tests available for our clients based in the USA. All the tests are done in the best-equipped testing laboratory for utmost client satisfaction.

    • Identification of cracks, imperfections, and contaminants on the surface of coated products
    • Assessment of nanoparticles in coatings and paints
    • Structural analysis of new species of microscopic organisms like bacteria and viruses
    • Analysis of particle size and shape in the cosmetic formulations
    • Failure analysis of integrated circuit boards
    • Analysis of gunshot residue for forensic investigation
    • Testing new vaccinations and medicines
    • Topographical analysis of the semiconductor wafers

    Advantages of SEM Tests

    • Simple sample preparation as the sample does not need to be thin
    • Data acquisition is rapid and in the digital form
    • High resolution (up to 15 nanometers) and three dimensional (3D) images can be obtained
    • Easy to operate with user-friendly interfaces

    Limitations of SEM Tests

    • The sample should be solid and must fit into the microscope chamber
    • Electrically insulating samples need the application of an electrically conductive coating, which may result in artifacts
    • EDS detector on SEM can not detect very light elements (H, He, and Li), and many instruments are unable to detect elements with atomic numbers less than 11
    • SEM must be placed in an area that is free of any possible magnetic, electric, or vibration interference

    Industries Utilizing SEM Tests

    • Life Sciences
    • Mining and Minerals
    • Semiconductors
    • Medical and Forensic Science
    • Metallurgy
    • Advanced Materials
    • Beauty and Cosmetics
    • Electronics
    • Pharmaceuticals

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      FAQs on Scanning Electron Microscopy – SEM

      Where can I get the scanning electron microscopy (SEM) analysis done?

       SEM analysis is one of the most commonly requested tests at Infinita Lab. We provide SEM services for elemental analysis and for detecting surface flaws, fractures, and contaminants.

      How much does SEM analysis cost?

      Sample preparation and imaging with scanning electron microscopy (SEM) start from $275 per sample surface. 

      What is the use of scanning electron microscopy (SEM)?

       Scanning electron microscopy (SEM) is used for identifying surface flaws, fractures, and contaminants, at the microscale, by producing high-resolution images of a sample’s surface. It is also used for determining the elemental composition of a sample’s surface.

      What is included in scanning electron microscopy (SEM) analysis?

       Scanning electron microscopy (SEM) analysis includes surface and near-surface topography and Z-contrast imaging. Further investigative studies include 2D or 3D imaging, and elemental mapping using FIB-SEM (Focused Ion Beam Scanning Electron Microscope) technology and EDS (energy-dispersive) detector. 

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