Aluminum Alloy Compressor Housing for Semiconductor Wafer Crystal Pullers from Japan
This precision-machined aluminum alloy housing encases the compressor in Czochralski crystal pullers used to grow monocrystalline silicon boules for semiconductor wafers. It falls under HTS 8414.90.41.65 as a dedicated part of gas compressors in semiconductor manufacturing equipment, providing structural integrity and gas containment during high-vacuum crystal growth processes.
Duty Rate — Japan → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles of aluminum, of steel or of copper or derivative aluminum or steel articles; passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; parts of passenger vehicles (sedans, sport utility vehicles, crossover utility vehicles, minivans and cargo vans) and light trucks; medium- and heavy-duty vehicles; parts of medium- and heavy-duty vehicles; wood products; patented pharmaceutical articles; and semiconductor articles, as provided in subdivision (f) of U.S. note 52 to this subchapter
Import Tips
• Verify the housing is specifically designed for compressors in semiconductor crystal growth equipment to qualify under statistical note provisions
• Provide engineering drawings and end-use statements confirming application in wafer manufacturing to avoid misclassification as general machinery parts