Semiconductor Wafer Lapper Conditioning Ring from United States
A diamond pellet ring used for dressing lapping plates in semiconductor wafer preparation equipment of heading 84.25. This conditioning ring maintains plate flatness during production and prevents glazing, ensuring consistent material removal rates. As a part suitable solely or principally for lapping machines, it is classified under tariff item 8431.10.00.
Duty Rate — United States → Canada
0%
Import Tips
• Classify this ring as a part of machinery of heading 84.25 and keep records demonstrating its specific use in lapping machines
• If the ring is made of a precious or semi-precious stone, verify that it does not fall under Section XVI exclusions
• Consider whether the ring is shipped with the lapping machine itself, which may affect classification