Laser Wafer Overlay Metrology Tool from Japan
Precision optical instrument measuring overlay alignment between multiple lithographic layers on semiconductor wafers. Employs interferometry and pattern recognition to ensure nanometer-level accuracy in wafer patterning processes. Falls under HTS 9031.41.00.40 for wafer-specific optical inspection in IC production.
Duty Rate — Japan → United States
0%
Rate breakdown
9903.05.860%Universal product exemption (U.S. note 52(b))
Import Tips
• Provide NIST-traceable calibration data for optical components to satisfy US customs metrology verification
• Label as 'for semiconductor wafer inspection only' to prevent classification under general laboratory apparatus