HS Code Subheading

Optical instruments and appliances; for inspecting semiconductor wafers or devices or for inspecting photomasks or reticles used in manufacturing semiconductor devices, n.e.c. in chapter 90

9031.41 Subheading
Section XVIII — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; clocks and watches; musical instruments; parts and accessories thereof

About HS Code 903141

This highly specialized category covers optical instruments and appliances specifically designed for inspecting semiconductor wafers or devices, as well as photomasks or reticles used in their manufacturing. These tools are absolutely vital for the semiconductor industry, employing advanced optics and imaging techniques to detect microscopic defects, measure critical dimensions, and ensure the quality and integrity of components at every stage of fabrication. Major importers and exporters are countries with significant semiconductor manufacturing capabilities, such as those with advanced foundries and integrated device manufacturers. Key aspects include ultra-high resolution, automated defect detection, and precise metrology, which are crucial for maximizing yield, ensuring product reliability, and maintaining the cutting edge in microelectronics production. The trade in these instruments underpins the global technology supply chain.

Products Under This Code

Wafer inspection systems (optical), photomask inspection tools, reticle inspection systems, critical dimension (CD) SEMs (optical components), overlay metrology tools, surface defect inspection systems

Real World Examples

KLA-Tencor (now KLA) Wafer Inspection Systems, Applied Materials PROVision, ASML YieldStar, ZEISS AIMS (Advanced Imaging and Metrology System)

Common Misclassification

Often confused with electrical testing equipment for semiconductors under 903082, but 903141 specifically refers to *optical* inspection and measurement. It's also distinct from general optical measuring instruments under 903149 by its specific application to semiconductors.

Products Classified Under 9031.41

Industry

This code belongs to the Electronics & Electrical Equipment industry.

Trade Overview

Taiwan, South Korea, USA, and Japan are leading countries in both the import and export of these critical semiconductor inspection tools.

Frequently Asked Questions

What is HS code 903141?

HS code 903141 covers: Optical instruments and appliances; for inspecting semiconductor wafers or devices or for inspecting photomasks or reticles used in manufacturing semiconductor devices, n.e.c. in chapter 90. This highly specialized category covers optical instruments and appliances specifically designed for inspecting semiconductor wafers or devices, as well as photomasks or reticles used in their manufacturing. These tools are absolutely vital for the semiconductor industry, employing advanced optics and imaging techniques to detect microscopic defects, measure critical dimensions, and ensure the quality and integrity of components at every stage of fabrication. Major importers and exporters are countries with significant semiconductor manufacturing capabilities, such as those with advanced foundries and integrated device manufacturers. Key aspects include ultra-high resolution, automated defect detection, and precise metrology, which are crucial for maximizing yield, ensuring product reliability, and maintaining the cutting edge in microelectronics production. The trade in these instruments underpins the global technology supply chain.

What products fall under HS code 903141?

Wafer inspection systems (optical), photomask inspection tools, reticle inspection systems, critical dimension (CD) SEMs (optical components), overlay metrology tools, surface defect inspection systems

What are common misclassifications for HS code 903141?

Often confused with electrical testing equipment for semiconductors under 903082, but 903141 specifically refers to *optical* inspection and measurement. It's also distinct from general optical measuring instruments under 903149 by its specific application to semiconductors.

How is HS code 903141 structured?

HS code 903141 is a 6-digit subheading under the Harmonized System. The first 2 digits (90) identify the chapter, digits 3-4 (31) identify the heading, and digits 5-6 (41) specify the subheading. This code is standardized globally by the World Customs Organization.