Wafer Flatness Polisher Vacuum Valve from Japan
Vacuum chuck control valve maintaining wafer hold-down during back-side polishing for ultimate flatness in semiconductor processing. HTS 8481.80.9050 other appliance for wafer polishers. Sub-micron flatness capability.
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
• Specify flatness specs (e.g
• <10nm PV) linking to polishers
• Include vacuum level range (10-5 to atm) documentation
• Prove not general vacuum valve via fab end-use letters