Float Zone Crystal Grower
Equipment that uses radio frequency heating to melt a narrow zone of polycrystalline silicon rod, forming monocrystalline silicon via zone refining in a quartz (glass) envelope. Classified under HTS 8475.29.00.00 for hot working glass in semiconductor material production. Critical for high-purity wafers used in electronics.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If induction heating predominant without glassworking
Falls under industrial induction equipment if not tied to glass hot-working per HTS definitions
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Import Tips & Compliance
• Document quartz envelope usage and RF heating specs; ensure statistical note compliance for semiconductor testing
• Avoid errors by distinguishing from metallurgical equipment
Related Products under HTS 8475.29.00.00
Czochralski Crystal Puller
A machine used to produce monocrystalline silicon boules by pulling a seed crystal from molten silicon in a crucible, involving high-temperature glass-lined vessels for containment. It falls under HTS 8475.29.00.00 as equipment for hot working glass envelopes in semiconductor crystal growth processes. This apparatus precisely controls temperature gradients essential for semiconductor wafer production.
Crystal Boule Grinder
Precision grinder for shaping silicon boules to exact diameters and flats indicating conductivity, often using glass tooling or enclosures for thermal control during hot processing. Under HTS 8475.29.00.00 as other glassware manufacturing machine per statistical notes on wafer preparation. Ensures wafers meet semiconductor fabrication tolerances.
Wafer Slicing Diamond Saw
High-precision inner-diameter saw with diamond blade for slicing thin wafers from silicon boules, featuring glass coolant systems and hot-worked enclosures. Fits HTS 8475.29.00.00 as wafer preparation equipment involving glassware manufacturing. Produces uniform wafers for IC fabrication.
Silicon Wafer Lapper
Machine that laps silicon wafers to precise flatness using abrasive slurries in glass-lined polishing stations, part of hot glassware processing for semiconductors. Classified in HTS 8475.29.00.00 under wafer preparation equipment. Achieves surface flatness critical for lithography.
Quartz Crucible Hot Forming Press
Press for hot forming high-purity quartz crucibles used in Czochralski pullers, directly manufacturing glassware for semiconductor growth. Under HTS 8475.29.00.00 for machines manufacturing hot working glass. Essential for containing molten silicon.
Glass Envelope Sealing Machine
Automated machine for hermetically sealing glass envelopes around semiconductor components during hot working, used in device packaging. HTS 8475.29.00.00 covers other glassware manufacturing for electronics. Ensures vacuum integrity.