Float Zone Crystal Growth Chiller from Canada
Chiller system for float zone silicon crystal growers maintaining RF coil and zone temperatures during high-purity monocrystalline growth per statistical note (a)(i). Produces wafers with ultra-low oxygen content. Under HTS 8418.99.8060.
Duty Rate — Canada → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) 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 float zone vs Czochralski method; provide resistivity specs achieved
• Pitfall: general furnace cooling system classification