Czochralski Crystal Puller
A machine tool used to produce monocrystalline silicon boules by pulling a seed crystal from molten silicon in the Czochralski process. It falls under HTS 8461.90.60.90 as specialized equipment for shaping semiconductor crystal ingots through controlled pulling and rotation, classified among other metal-removal machine tools not elsewhere specified.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified primarily as semiconductor wafer manufacturing apparatus
Statistical notes direct crystal growers to 8486 if specifically for semiconductor processing rather than general metal shaping.
If for industrial semiconductor material growth equipment
Machines unlisted elsewhere for semiconductor boule production may shift to 8479 machines for chemical manufacturing.
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Import Tips & Compliance
• Verify compliance with semiconductor manufacturing export controls and obtain necessary licenses from BIS or ITAR
• Provide detailed technical specs and end-use statements to avoid misclassification under Chapter 84 or 90
Related Products under HTS 8461.90.60.90
Silicon Wafer Polisher
Double-sided polishing machine bringing semiconductor wafers to final thickness and mirror finish before device fabrication. Falls under HTS 8461.90.60.90 as other machine tool for cermet surface finishing.
Crystal Annealing Furnace Shaper
Integrated shaping station within high-temperature annealing furnaces maintaining crystal integrity during thermal processing. Falls under HTS 8461.90.60.90 as combined machine tool.
Automated Wafer Backlapper
Robotic backlapping system for uniform wafer thinning with in-situ thickness measurement maintaining bow/warp specs. Classified HTS 8461.90.60.90 specialized semiconductor finishing.
Large Diameter Ingot Trimmer
Heavy-duty trim saw/grinder for 450mm+ semiconductor ingots preparing for next-gen wafer production. HTS 8461.90.60.90 other large-scale cermet working tools.
Float Zone Crystal Grower
Equipment employing the float zone method to grow high-purity silicon crystals by melting a narrow zone of polycrystalline rod without a crucible. Classified in HTS 8461.90.60.90 as other machine tools for precise shaping of semiconductor materials through zone refining and pulling.
Crystal Boule Grinder
Precision grinder that shapes semiconductor crystal boules to exact diameters and grinds orientation flats indicating conductivity type. Under HTS 8461.90.60.90 as other machine tools removing material from cermet-like semiconductor crystals.