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Wafer Lapping Machine Pressure Control Board from Canada

This PCA regulates pneumatic pressure systems in wafer lappers that achieve flatness tolerances for semiconductor wafer fabrication. It maintains nanometer-level uniformity across wafer surfaces. HTS 8473.30.11 as PCA for heading 8471 semiconductor processing equipment.

Duty Rate — Canada → United States

25%

Rate breakdown

9903.79.0125%Semiconductor articles as provided for in subdivisions (a) and (b) of U.S. note 39 to this subchapter
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter

Import Tips

Provide pressure regulation specifications (0.1 psi resolution) proving semiconductor tolerances

Include slurry flow integration documentation for chemical-mechanical processes

Certify materials compatibility with silicon carbide and diamond abrasives