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Section XVIII — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof

Chapter 90 — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof

Heading 9031 — Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this Chapter; profile projectors.

National subdivision 9031.4 — Other optical instruments and appliances:

Subheading 9031.41 — For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits)

HS code

9031.41.00 For inspecting semiconductor wafers or devices or for inspecting photomasks or reticles used in manufacturing semiconductor devices

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Last Verified Date - 1 October 2026
Common commodities
Silicon wafer alignment toolIntegrated circuit optical defect detectorPhotomask surface inspection systemReticle dimension checking machineWafer alignment and defect analysis deviceSemiconductor wafer quality control optical instrumentOptical IC chip critical dimension measurerMask misalignment detection equipmentSemiconductor process control optical measurement toolReticle surface inspection and alignment system