Float Zone Crystal Grower
Float zone crystal growers use the float zone method to produce high-purity monocrystalline semiconductor boules without crucibles, ideal for silicon wafers. Classified in HTS 8443.99.5050 as other printing machinery accessories per statistical notes for semiconductor wafer manufacturing equipment. Critical for creating defect-free crystals used in device fabrication.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If bulk industrial semiconductor processing not linked to printing
General semiconductor manufacturing machines go to 8486 per Chapter 84 notes.
If emphasizing furnace/heating functionality
Heating equipment for crystal growth may classify under laboratory furnaces if not specific to wafers.
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Import Tips & Compliance
• Submit process flow diagrams showing boule-to-wafer integration to justify printing machinery parts classification
• Watch for reclassification to 8486; document non-consumer end-use in cleanroom environments
Related Products under HTS 8443.99.50.50
Colloidal Silica Wafer Polisher
Polishers using colloidal silica slurry for final semiconductor wafer surface preparation. HTS 8443.99.5050 for wafer polishers per statistical notes. Creates oxide layer for device processing.
Czochralski Crystal Puller
A Czochralski crystal puller is specialized equipment used to produce extremely pure monocrystalline semiconductor boules from silicon or gallium arsenide melts, from which wafers are sliced. It falls under HTS 8443.99.5050 as 'other' parts and accessories for printing machinery adapted for semiconductor processing, specifically in wafer manufacturing per statistical notes. This machine employs the Czochralski method for crystal growth essential to semiconductor production.
Single-Side Wafer Polisher
Single-side wafer polishers create mirror-finish surfaces on semiconductor wafers using colloidal silica slurry for device fabrication readiness. Falls under HTS 8443.99.5050 as printing machinery parts for wafer polishing per statistical note (a)(ii)(C). Achieves sub-nanometer surface roughness.
Crystal Ingot Diameter Grinder
Precision grinders that shape crystal ingots to uniform diameter tolerances before wafer slicing, with automated profiling for resistivity flat marking. HTS 8443.99.5050 as other semiconductor wafer prep accessories per statistical notes. Maintains crystal orientation throughout process.
Multi-Wire Wafer Slicing Saw
Multi-wire saws use diamond-impregnated wires to simultaneously slice hundreds of wafers from semiconductor boules, minimizing material loss. Classified in HTS 8443.99.5050 as printing parts for wafer manufacturing per statistical note (a)(ii)(B). Enables high-volume 300mm wafer production.
Double-Side Wafer Grinder
Double-side grinders simultaneously process both wafer surfaces for thickness uniformity and parallelism prior to polishing. Under HTS 8443.99.5050 for semiconductor wafer grinding per statistical note (a)(ii)(C). Achieves <1 micron TTV across 300mm wafers.