Wafer Lapping Furnace Process Chamber from Canada
Thermal process chamber for post-lapping heat treatment furnaces that stabilize semiconductor wafers before polishing. Classified HTS 8417.90.00.00 as nonelectric industrial furnace parts in wafer preparation equipment. Ensures uniform wafer stress relief after mechanical lapping.
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 already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include wafer flatness/temperature uniformity specifications; confirm post-lapping thermal process function; distinguish from polishing slurry delivery systems