Phase Shift Wafer Inspection System
A phase shift wafer inspection system uses coherence scanning interferometry to characterize semiconductor wafer surfaces at angstrom-level precision. It detects subtle thickness variations that standard optical systems cannot resolve, making it essential for advanced semiconductor manufacturing quality control. This product falls under tariff item 9031.41.00 as an optical instrument specifically designed for inspecting semiconductor wafers.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the system is used for inspecting other optical devices rather than semiconductor wafers
Covers other optical instruments and appliances not specifically for semiconductor inspection.
If the system is a microscope other than optical, such as an electron microscope
Electron microscopes and related apparatus are classified in heading 90.12.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the system is described as 'for inspecting semiconductor wafers or devices' on commercial invoices to support classification under 9031.41.00
• Be prepared to provide technical documentation to the CBSA demonstrating the optical inspection function
• Verify whether the system includes any parts that might be classified separately under Chapter 90 notes
Related Products under Tariff item 9031.41.00
3D NAND Wafer Structure Inspector
A 3D NAND wafer structure inspector is a specialized optical scatterometry system that measures 3D NAND flash memory structures on semiconductor wafers. It analyzes complex stacked layer dimensions critical for advanced memory device manufacturing. This product is classified under tariff item 9031.41.00 as an optical inspection instrument for semiconductor wafers.
Advanced Packaging Wafer Inspector
An advanced packaging wafer inspector is an optical inspection system designed for fan-out wafer-level packaging (FOWLP) semiconductor wafers. It checks redistribution layers and underfill voids, making it essential for heterogeneous integration in advanced semiconductor packaging. This product is classified under tariff item 9031.41.00 as an optical inspection instrument for semiconductor wafers.
Applied Materials UVision 4E Patterned Wafer Inspector
A high-resolution patterned wafer inspection tool using deep ultraviolet (DUV) optics to detect systematic and random defects on production semiconductor wafers. Essential for yield enhancement in advanced semiconductor nodes below 10nm, this system falls under tariff item 9031.41.00 as it is specifically designed for inspecting semiconductor wafers or devices.
Applied Materials Verifier Summit Reticle Inspector
A high-throughput reticle inspection platform using deep ultraviolet (DUV) illumination for detecting critical defects on advanced node photomasks. Features programmable defect classification and recipe-based inspection, and is classified under 9031.41.00 as it inspects photomasks or reticles.
ASML YieldStar Optical Metrology Tool
An overlay and focus metrology system for semiconductor wafers using diffraction-based optical measurements to ensure lithographic pattern accuracy. Used post-exposure to monitor process control in high-volume manufacturing, this tool is classified under 9031.41.00 as it inspects semiconductor wafers or devices.
Automated Wafer Particle Counter
This automated wafer particle counter is a dark-field optical microscope system that automatically counts and sizes contamination particles on unpatterned semiconductor wafers. It is critical for yield optimization in wafer fabrication cleanrooms. This product falls under tariff item 9031.41.00 as an optical instrument for inspecting semiconductor wafers.