Other
Parts and accessories suitable for use solely or principally with the machines of headings 8456 to 8465, including work or tool holders, self-opening dieheads, dividing heads and other special attachments for the machines; tool holders for any type of tool for working in the hand: > Other: > For machines of headings 8456 to 8461: > Other: > Other: > Other: > Other: > Other > Other
Duty Rate (from China)
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
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]
Products classified under HTS 8466.93.98.85
Czochralski Crystal Puller Control Module
Electronic control module specifically designed for regulating temperature and rotation in Czochralski crystal pullers used to grow monocrystalline silicon boules for semiconductor wafers. This part falls under HTS 8466.93.98.85 as a specialized accessory for semiconductor manufacturing machines in heading 8461. It ensures precise control over crystal growth parameters critical for semiconductor production.
Semiconductor Wafer Slicing Saw Spindle Assembly
Precision spindle assembly for inner diameter wafer slicing saws used to cut ultra-thin silicon wafers from monocrystalline boules in semiconductor fabrication. Classified under HTS 8466.93.98.85 as a key component for machines of heading 8461 dedicated to semiconductor wafer preparation. Features diamond-impregnated blade mounting for sub-micron accuracy.
Float Zone Crystal Grinder Chuck
Vacuum chuck assembly for float zone crystal grinders that shape semiconductor boules to precise wafer diameters while maintaining flat orientation indicators. This accessory for heading 8461 machines is classified in HTS 8466.93.98.85 due to its specialized use in semiconductor material processing. Ensures conductivity type markings remain accurate during grinding.
Wafer Lapping Machine Work Holder
Specialized work holder for double-sided lapping machines that simultaneously lap both surfaces of semiconductor wafers to achieve nanometer flatness. Falls under HTS 8466.93.98.85 as an accessory for semiconductor wafer preparation equipment of heading 8461. Features pin-plate carrier system for uniform pressure distribution.
Silicon Boule Grinder Flattening Fixture
Precision fixture for grinding flats on silicon boules to indicate crystal orientation and resistivity type for subsequent wafer slicing. Classified under HTS 8466.93.98.85 as a special attachment for semiconductor crystal processing machines of heading 8461. Ensures repeatable flat positioning critical for wafer fabrication.
Diamond Wafer Polishing Head Assembly
Carrier head assembly with diamond pad retention system for chemical mechanical polishing (CMP) of semiconductor wafers. This part for heading 8461 polishing machines is classified in HTS 8466.93.98.85 due to its semiconductor-specific design tolerances. Maintains uniform pressure across 300mm wafers during planarization.
Crystal Grower RF Heating Coil Assembly
Radio frequency induction heating coil specifically engineered for float zone crystal growers producing semiconductor-grade silicon. Falls under HTS 8466.93.98.85 as a principal part for heading 8461 semiconductor processing machines. Provides zone-refined melting without crucible contamination.
Wafer Grinder Coolant Manifold
Precision coolant distribution manifold for back grinding machines that thin semiconductor wafers to final target thickness. Classified under HTS 8466.93.98.85 as an accessory ensuring thermal stability during semiconductor wafer processing equipment operation. Features micron-level nozzle positioning.
Monocrystalline Boule Inspection Jig
Custom jig for precisely positioning semiconductor boules in diameter and flatness inspection stations prior to wafer slicing. This work holder for heading 8461 machines is classified in HTS 8466.93.98.85 due to its semiconductor boule-specific geometry. Ensures accurate measurement of crystal parameters.
Semiconductor Wafer Edge Profiling Tool Holder
Specialized tool holder for edge grinding machines that create chip-resistant profiles on semiconductor wafers. Falls under HTS 8466.93.98.85 as an accessory for heading 8461 wafer processing equipment. Accommodates diamond wheels for sub-10 micron edge geometry.