Other
Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 8470 to 8472: > Parts and accessories of the machines of heading 8472: > 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 8473.40.86.00
Float Zone Crystal Grower
Apparatus employing the float zone method to produce ultra-pure monocrystalline semiconductor ingots from polycrystalline rods. Classified in HTS 8473.40.86.00 as a part/accessory for heading 8472 semiconductor manufacturing machines. Critical for high-resistivity silicon used in power devices.
Crystal Boule Grinder
Precision grinding machine that shapes semiconductor crystal boules to exact diameters and grinds orientation flats indicating conductivity type. Falls under HTS 8473.40.86.00 as wafer preparation equipment for heading 8472 machines. Ensures dimensional accuracy before wafer slicing.
Wafer Lapping Machine
Machine using abrasive slurries to lap both sides of semiconductor wafers simultaneously, achieving critical flatness specifications. HTS 8473.40.86.00 covers this wafer preparation equipment for heading 8472 semiconductor machines. Prepares wafer surface before final polishing.
Chemical Mechanical Wafer Polisher
CMP polisher that uses chemical slurry and mechanical force to achieve atomic-level surface flatness on semiconductor wafers. Specifically classified in HTS 8473.40.86.00 as final wafer preparation apparatus for heading 8472 machines. Essential for subsequent device fabrication processes.
Wafer Edge Profiling Grinder
Specialized grinder that creates precise chamfered edges on semiconductor wafers to prevent chipping during handling and processing. HTS 8473.40.86.00 classification for wafer preparation accessories of heading 8472 machines. Maintains edge strength for high-volume fab handling.
Semiconductor Crystal Ingot Trimmer
Precision trimmer that cuts semiconductor ingots to length and squares ends before boule grinding operations. Classified under HTS 8473.40.86.00 as part of the wafer manufacturing equipment sequence for heading 8472. Ensures uniform starting material dimensions.
Monocrystalline Boule Inspector
Automated inspection station using laser scanning and imaging to detect defects in semiconductor crystal boules before processing. HTS 8473.40.86.00 as accessory equipment integral to heading 8472 wafer manufacturing apparatus. Provides defect mapping for yield optimization.
Wafer Thickness Measurement Station
Inline station measuring semiconductor wafer thickness uniformity using laser interferometry for process control. Classified under HTS 8473.40.86.00 when integral to wafer preparation equipment of heading 8472. Ensures wafers meet fab dimensional specifications.
Diamond Wire Wafer Saw Consumable Loader
Automated loading system for diamond wire spools and slurry systems in high-throughput wafer slicing saws. HTS 8473.40.86.00 as accessory suitable solely for heading 8472 semiconductor slicing machines. Enables continuous production operation.
Crystal Grinder Coolant Filtration System
High-purity coolant recirculation and filtration system designed specifically for semiconductor crystal grinding processes. Classified under HTS 8473.40.86.00 as essential accessory maintaining particle-free processing environment for heading 8472 equipment.
Wafer Polishing Pad Conditioner
Diamond disk conditioner that dresses CMP polishing pads to maintain uniform removal rates during semiconductor wafer polishing. HTS 8473.40.86.00 classification as accessory for heading 8472 wafer processing machines. Essential for consistent planarization performance.
Boule Handling Robot End-Effector
Custom vacuum gripper and rotation mechanism designed exclusively for handling heavy semiconductor crystal boules during processing. Classified under HTS 8473.40.86.00 as part suitable principally for heading 8472 crystal processing equipment.
Wafer Grinding Spindle Assembly
Ultra-precision air-bearing spindle delivering constant velocity for semiconductor wafer backgrinding operations. HTS 8473.40.86.00 as critical component of heading 8472 wafer thinning equipment. Achieves final wafer thickness control to ±1μm.
Czochralski Crystal Puller Furnace
A high-temperature furnace used to produce monocrystalline silicon boules via the Czochralski method for semiconductor wafer manufacturing. It is a key component classified under HTS 8473.40.86.00 as a part of semiconductor processing machines in heading 8472. This equipment precisely controls crystal growth conditions essential for semiconductor production.
Semiconductor Wafer Slicing Saw
Diamond wire or blade saw designed to slice ultra-thin wafers from monocrystalline semiconductor boules with minimal kerf loss. Classified under HTS 8473.40.86.00 as essential wafer manufacturing equipment for heading 8472 apparatus. Maintains crystal orientation during high-precision cutting.