Silica Quartz Oxidation Boat Holder from China
A fused silica holder for wafer boats inserted into oxidation furnaces to grow oxide layers on semiconductor wafers. Engineered for thermal stability and minimal contamination in high-temperature environments. Falls under HTS 7017.10.30.00 due to its fused quartz construction and specific semiconductor furnace application.
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
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Import Tips
• Provide engineering drawings showing furnace insertion design and wafer compatibility to support specific HTS classification
• Ensure supplier declarations confirm fused silica material per Chapter 70 fused quartz definition
• Avoid misclassification by distinguishing from general lab ware; include process flow documentation