BedeMetrix F FT-NIR

A Fourier transform near infrared spectrometer is a precision optical measurement instrument. Near infrared spectrometers are used to analyze how materials interact with light in the near infrared region. Wafer-capable optical metrology tools are used for noncontact characterization of semiconductor substrates and thin film structures.

FT-NIR instruments measure a sample by directing near infrared radiation through or onto it and recording the resulting optical response. Fourier transform processing converts an interferometric signal into a spectrum. Wafer metrology configurations commonly combine optical measurement hardware with automated wafer handling and recipe driven control software.

Optical wafer metrology tools are used outside the material modification steps of fabrication. Such systems are typically placed in characterization, engineering analysis, or process monitoring flows where a wafer or film stack must be measured without destructive sectioning. Optical spectrometers can be used between deposition, thermal treatment, implantation, or polish related steps when material properties must be checked before downstream processing continues.

Near infrared wafer spectrometers are used for materials characterization and process monitoring. Such tools can support work on semiconductor wafers, thin films, and engineered layer stacks by extracting optical signatures related to composition, bonding, thickness behavior, or uniformity. Precision optical spectrometers are also used in development environments where recipe setup, correlation studies, and noncontact inspection are important.