Semiconductor Wafer Chiller from Japan
A precision cooling unit designed for rapid temperature control of silicon wafers during semiconductor processing to prevent thermal damage. It falls under HTS 8419.89.9540 as machinery for cooling semiconductor materials by changing temperature in a controlled industrial process. Excludes domestic use and focuses on high-precision fab applications.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify equipment is specifically for semiconductor wafer cooling with fab compatibility certifications to avoid reclassification
• Include detailed process descriptions in entry docs proving temperature change function per Chapter 84 notes