HS Code for Wafer processing parts

Wafer processing parts are classified under HS code 8486.90 because they are identifiable parts and accessories solely or principally used with the machines and apparatus of heading 8486. Heading 8486 is a specific provision that covers machines used for the manufacture of semiconductor boules or wafers, semiconductor devices, electronic integrated circuits, or flat panel displays. According to Note 9 to Chapter 84 and the General Rules of Interpretation (GRI) 1 and 6, parts that are suitable for use solely or principally with these machines must be classified here rather than in more general headings for parts of machinery. This classification includes components that facilitate the chemical vapor deposition, ion implantation, or epitaxial growth processes essential to semiconductor fabrication. The classification is determined by the functional dedication of the part to the parent machine, ensuring that specialized semiconductor manufacturing equipment components are grouped together for trade monitoring and tariff application.

Products Included

• Ion implanter source modules
• Chemical vapor deposition (CVD) chamber liners
• Wafer handling robot arms and end effectors
• Lithography machine lens housings
• Plasma etch electrodes
• Gas distribution plates for semiconductor reactors

Common Misclassification

These parts are frequently misclassified under heading 8473, which covers parts for automatic data processing machines (computers). However, because these parts are used in the manufacturing process rather than the operation of the computer itself, 8486.90 takes precedence. Another common error is using 8538, which covers parts for electrical switching apparatus, or 8414 for vacuum pump parts if the component is used in a vacuum system. If a part is specifically designed for a machine in 8486, Note 2(b) to Section XVI generally directs it to 8486.90.

FAQ

What is the HS code for Wafer processing parts?

The primary HS code for parts and accessories of semiconductor wafer processing machines is 8486.90.

Are general-purpose valves used in wafer machines classified here?

No, general-purpose parts like valves, bearings, or gaskets are typically classified in their own respective headings (e.g., 8481 for valves) even if intended for use in wafer processing equipment, per Note 1 to Section XVI.