Semiconductor Fab Vacuum Pump Controller Board from Mexico
PCA for controlling turbomolecular vacuum pumps in semiconductor wafer processing equipment under heading 8471. Manages pump speed, pressure setpoints, and vibration isolation. HTS 8473.30.11 as printed circuit assembly without CRT.
Duty Rate — Mexico → 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
• Include vacuum level specifications (10^-9 Torr capability) proving semiconductor use
• Provide EMI shielding certifications for cleanroom RF compatibility
• Document integration with heading 8471 equipment via interface specifications