Chemical Vapor Deposition Chamber Heat Exchanger from Japan
Immersion-type heat exchanger for CVD chambers, preheating carrier gases for uniform semiconductor thin film deposition on wafers. Classified HTS 8419.90.30.00 as part of heat exchange units in vapor deposition temperature treatment equipment. Critical for precursor vaporization control.
Duty Rate — Japan → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Certify for high-temperature corrosive gases (e.g
• DCS, TEOS); provide deposition uniformity data
• Issue: incorrect HS declaration omitting semiconductor use