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8442.40.00.00/Wafer Grinder Air Bearing Chuck/Mexico

Wafer Grinder Air Bearing Chuck from Mexico

Porous ceramic air bearing chuck that holds semiconductor wafers during grinding with near-zero friction and contamination. Maintains wafer flatness within 0.1 microns. Essential part of wafer grinder/polisher equipment under 8442.40.00.00.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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Import Tips

• Provide porosity specs (20-40%) and air pressure ratings (40-60 psi) in import docs

• Cleanroom certification and ESD-safe handling required for proper entry

• Single vs multi-wafer chucks may affect valuation; specify capacity clearly

Wafer Grinder Air Bearing Chuck from Mexico — Import Duty Rate | HTS 8442.40.00.00