Diffusion Furnace Quartz Tube Liner from Canada
High-purity fused quartz liner inserted into diffusion furnace tubes for dopant diffusion into semiconductor wafers during device fabrication. Classified under HTS 8417.90.00.00 as parts of nonelectric industrial furnaces critical to semiconductor processing. Prevents contamination during high-temperature (900-1200°C) diffusion processes.
Duty Rate — Canada → United States
15%
Rate breakdown
9903.82.1015%Except as provided for in headings 9903.82.12, 9903.82.17 and 9903.85.68, derivative aluminum and steel articles with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 15 percent, as provided for in subdivision (f) of U.S. note 16 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
• Certify quartz purity (OH content <10ppm) with test reports; declare liner function specific to diffusion furnaces; distinguish from generic laboratory quartzware