Wafer Flatness Profiler

Non-contact optical profiler using white light interferometry to measure wafer thickness variation and surface flatness. Essential for ensuring silicon wafer planarity before lithographic processing. Specifically classified in HTS 9031.41.00.40 for semiconductor wafer optical inspection.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

9013.80Lower: 14.5% vs 35%

If general optical profilometers not dedicated to semiconductor wafers

Chapter notes require specific semiconductor application for 9031.41 classification.

9031.49.40.00Same rate: 35%

If other optical measuring instruments outside semiconductor scope

Specificity to wafers determines subheading within optical instruments.

8486.40.00Lower: 25% vs 35%

If as semiconductor manufacturing machines if integrated into production line

Production machinery classification supersedes measuring instrument status.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Include interferometer wavelength specifications and resolution data in commercial invoice

Classify vibration isolation tables separately if imported as components

Related Products under HTS 9031.41.00.40

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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.