Semiconductor Wafer Grinder Gasket Kit from China
Assortment of precision multi-layer metal gaskets with PTFE coating for sealing chambers in wafer grinding machines used in semiconductor fabrication. Classified in 8484.90.00.00 as dissimilar gasket sets in pouches, designed for cleanroom compatibility in crystal boule processing equipment.
Duty Rate — China → United States
40%
Rate breakdown
9903.05.3112.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of China, as provided for in U.S. note 52 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
• Provide end-use statement linking to semiconductor processing to support cleanroom material claims
• Sets must be pre-packaged; loose gaskets risk reclassification to 8484.10 or Chapter 39
• Avoid delays by certifying particle-free packaging suitable for wafer fab environments