Motherboard for Semiconductor Wafer Steppers from China
This printed circuit assembly serves as the control board for photolithography steppers used in semiconductor wafer processing, falling under HTS 8473.50.30.00 as a part equally suitable for EDP machines (8471) and semiconductor manufacturing equipment (8473). It manages stepper motor controls, alignment sensors, and data processing interfaces specific to wafer fabrication.
Duty Rate — China → United States
35%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Verify the PCA is documented as suitable for both 8471 (EDP) and 8473 (semiconductor) machines to qualify under this subheading
• Include engineering specs proving multi-machine compatibility; misclassification to single-use parts risks reclassification
• Ensure RoHS compliance and static protection packaging to avoid customs holds on semiconductor-related imports