Wafer Bow Measurement Fixture from Canada
Fixture that holds wafers during bow/warp measurement in grinding process control stations. Designed for wafer grinder/polisher equipment of heading 8428. Parts in 8431.39.00.
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
• Specify bow measurement range (sub-micron); cleanroom class 1 compatibility
• Pitfall: chapter 90 measuring instrument confusion