Ellipsometer for Thin Film Analysis
Precision instrument using polarized visible light optical radiations to measure thin film thickness and optical constants via ellipsometry. Under HTS 9027.50.80.60 for other optical physical analysis apparatus. Used in semiconductor fabrication.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If industrial optical measuring instruments for semiconductors
Semiconductor wafer metrology instruments often in 9031.49 per use.
If optical apparatus using diffraction or interference
Interferometric optical devices specifically in 9013.80.
If machines for semiconductor manufacture
Production machinery for wafers classified in 8486 regardless of measurement function.
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Import Tips & Compliance
• Polarization state detection specs mandatory for classification substantiation
• Refractive index measurement range documentation differentiates from profilometers
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