We are developing an FTIR spectroscopy experiment to characterize thin dielectric films deposited on semiconductor wafers. Could you recommend infrared-transparent substrates suitable for transmission measurements? We are also interested in custom wafer diameters, double-side polishing, and prototype quantities for laboratory research.
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Whether you're performing FTIR spectroscopy, developing infrared optical components, or characterizing thin films, UniversityWafer supplies high-quality substrates for research and production. We offer silicon, germanium, ZnSe, sapphire, fused silica, and many other infrared materials available in research and production quantities.
A university researcher recently requested:
Custom FTIR Substrates Available
- Silicon, germanium, ZnSe, sapphire, and fused silica substrates
- Single-side or double-side polished wafers
- Custom diameters and thicknesses
- Optical-grade surface finishes
- Research and production quantities
- Fast worldwide delivery
Need a different material? UniversityWafer also supplies specialized substrates for photonics, MEMS, thermal oxide, silicon nitride, and other semiconductor research applications.
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What Is FTIR Spectroscopy?
Fourier Transform Infrared (FTIR) spectroscopy is a widely used analytical technique for identifying chemical compounds, measuring molecular structures, and characterizing thin films and semiconductor materials. By measuring how a sample absorbs infrared radiation, FTIR provides valuable information about chemical bonds, crystal quality, surface treatments, and deposited films.
Researchers in semiconductor fabrication, materials science, nanotechnology, and photonics rely on FTIR spectroscopy to evaluate substrates, coatings, polymers, oxides, and other advanced materials throughout the manufacturing process.
Substrates Used for FTIR Analysis
Selecting the proper substrate is essential for obtaining accurate infrared measurements. The ideal material depends on the wavelength range, transmission characteristics, thermal stability, and chemical compatibility required by the application.
| Material | Key Properties | Typical FTIR Applications |
|---|---|---|
| Silicon | Excellent mechanical stability and semiconductor compatibility. | Thin-film characterization, MEMS, oxide analysis. |
| Germanium | High refractive index with excellent infrared transmission. | ATR crystals and infrared optical components. |
| ZnSe | Broad infrared transmission and excellent optical quality. | ATR accessories, FTIR windows, optical systems. |
| Sapphire | Exceptional hardness, thermal stability, and chemical resistance. | High-temperature spectroscopy and optical research. |
| Fused Silica | Excellent optical transparency with low thermal expansion. | Optical windows, UV-IR research, spectroscopy. |
Common FTIR Research Applications
FTIR spectroscopy supports numerous research and manufacturing processes, including:
- Thin-film characterization
- Oxide and nitride film analysis
- Semiconductor process monitoring
- Surface contamination detection
- MEMS device development
- Nanomaterial characterization
- Polymer and coating analysis
- Photonics and optical materials research
Research-Grade FTIR Materials
UniversityWafer supplies silicon, germanium, ZnSe, sapphire, fused silica, and many other infrared optical materials for FTIR spectroscopy, materials characterization, and semiconductor research. Custom diameters, thicknesses, polished surfaces, and prototype quantities are available for universities, laboratories, and industrial R&D.