Wafer Surface Defect Scanner
An optical inspection system designed specifically for detecting microscopic defects on semiconductor wafers during manufacturing. It uses laser scanning and high-resolution imaging to identify particles, scratches, and pattern anomalies on bare silicon wafers. Classified under HTS 9031.41.00.40 as an optical instrument for inspecting semiconductor wafers.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used for general semiconductor device inspection beyond just wafers
Broader optical inspection appliances not specifically for wafers fall under other optical instruments in 9013.
If classified as machines for semiconductor manufacturing rather than pure inspection
Inspection equipment integral to production machines may shift to semiconductor machinery heading.
If non-optical inspection methods like acoustic or electrical testing
Only optical wafer inspection stays in 9031.41; other technologies go to general measuring instruments.
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Import Tips & Compliance
• Verify equipment meets semiconductor cleanroom standards (ISO 14644) and obtain FCC certification for laser components
• Include detailed technical specs and end-user statements proving exclusive use for wafer inspection to avoid reclassification
Related Products under HTS 9031.41.00.40
Automated Wafer Particle Counter
Dark-field optical microscope system automatically counting and sizing contamination particles on unpatterned semiconductor wafers. Critical for yield optimization in wafer fabrication cleanrooms. HTS 9031.41.00.40 covers this specialized optical wafer inspection equipment.
Wafer Bow/Warp Optical Analyzer
Laser reflection optical system measuring wafer bow, warp, and total thickness variation across 300mm semiconductor wafers. Critical for stress analysis post-deposition processes. Classified under HTS 9031.41.00.40 as specialized wafer inspection optics.
Phase Shift Wafer Inspection System
Coherence scanning interferometry system using phase shifting for wafer surface characterization at angstrom-level precision. Detects subtle thickness variations invisible to standard optics. HTS 9031.41.00.40 for advanced optical wafer inspection technology.
Oblique Illumination Wafer Inspector
Specialized optical system using oblique angle illumination to enhance topographic defect visibility on patterned semiconductor wafers. Ideal for detecting shallow pits and mounds. Classified HTS 9031.41.00.40 for wafer optical inspection optimization.
Multi-Wavelength Wafer Metrology Tool
Broadband spectrophotometry optical system measuring thin film stack thicknesses across entire semiconductor wafers. Essential for process control in advanced nodes. HTS 9031.41.00.40 covers this wafer-specific optical measuring instrument.
Wafer Patterned Film Inspector
Ellipso-polarimetric optical system for patterned wafer thin film stress and thickness uniformity inspection. Uses multiple angles of incidence for complete characterization. HTS 9031.41.00.40 for advanced semiconductor wafer optics.