Semiconductor Wafer Crystal Puller Control Board from Japan
This printed circuit assembly (PCA) serves as the main control board for Czochralski crystal pullers used in producing monocrystalline silicon boules for semiconductor wafers. It manages temperature, rotation, and pulling speed parameters essential for crystal growth. Classified under HTS 8473.30.11 as a PCA for machines of heading 8471 dedicated to semiconductor manufacturing.
Duty Rate — Japan → United States
25%
Rate breakdown
9903.79.0125%Semiconductor articles as provided for in subdivisions (a) and (b) of U.S. note 39 to this subchapter
9903.05.860%Universal product exemption (U.S. note 52(b))
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
• Provide detailed machine compatibility documentation proving sole use with heading 8471 semiconductor equipment to avoid reclassification
• Include electrostatic discharge (ESD) protection certifications and RoHS compliance declarations for cleanroom compatibility
• Verify no cathode ray tube incorporation via engineering schematics to qualify under this subheading