Spectroscopic Ellipsometry | Sentech India | Sentech Systems

Spectroscopic Ellipsometry is a highly accurate and non-destructive optical technique used to analyze thin films, surfaces, and layered material structures. It has become an essential characterization method in advanced industries such as semiconductor manufacturing, nanotechnology, materials science, and microelectronics research. Because the technique is completely non-invasive, it allows researchers and engineers to study delicate samples without damaging or altering their properties.

The principle behind spectroscopic ellipsometry involves measuring the change in polarization of light when it reflects from a material surface. By analyzing these polarization changes across a wide spectral range, scientists can determine critical material parameters such as film thickness, refractive index, absorption coefficient, and other optical constants with extremely high precision.

One of the key advantages of spectroscopic ellipsometry is its ability to achieve sub-nanometer accuracy, making it ideal for the analysis of ultra-thin films and complex multilayer structures. Since the technique does not require direct contact with the sample, it ensures reliable, repeatable, and contamination-free measurements.

Labindia Instruments Pvt. Ltd. is the authorised dealer in India for Sentech, providing advanced thin film characterization solutions including spectroscopic ellipsometry systems. Through its partnership with Sentech, Labindia offers high-performance analytical instruments to support research laboratories, semiconductor facilities, and advanced material development across India.