Crystal boule Annealing Furnace
High-temperature furnace for annealing semiconductor boules to relieve stresses post-growth. Classified under HTS 8479.90.95 as semiconductor processing equipment. Provides controlled cooling rates to prevent defects.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general industrial furnaces
Non-specialized furnaces classify under heading 8514.
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Import Tips & Compliance
• Specify temperature uniformity (±1°C) and ramp rate control capabilities
• Include gas purge system specs for oxygen-free annealing atmosphere
• Distinguish from general heat treatment furnaces by semiconductor specs
Related Products under HTS 8479.90.95
Crystal Boule Grinder
Machine that grinds semiconductor crystal boules to precise diameter and adds flats indicating conductivity type and resistivity. Meets HTS 8479.90.95 as wafer preparation equipment per statistical note. Essential step before wafer slicing in semiconductor production.
Double-Sided Wafer Polisher
Machine simultaneously polishing both sides of semiconductor wafers to mirror finish using chemical-mechanical planarization (CMP). HTS 8479.90.95 for wafer preparation polishers in statistical note. Achieves nanometer-level surface flatness.
Silicon Ingot Grinder
Precision grinder for shaping silicon ingots to exact diameter prior to wafer slicing in semiconductor production. Classified HTS 8479.90.95 as crystal grinder per statistical note. Handles 200mm-450mm diameter ingots.
Wafer Edge Profiling Machine
Equipment that profiles wafer edges to prevent chipping and contamination during handling. HTS 8479.90.95 as specialized wafer preparation apparatus. Applies rounded bevels meeting SEMI standards.
Wafer Cleaning Centrifuge
High-speed centrifuge removing contaminants from semiconductor wafers post-polishing via centrifugal force. HTS 8479.90.95 for wafer preparation equipment. Handles 25-50 wafers per cycle.
Czochralski Crystal Puller
A machine used to produce monocrystalline silicon boules by the Czochralski method for semiconductor wafer manufacturing. It falls under HTS 8479.90.95 as a specialized semiconductor manufacturing machine not specified elsewhere in Chapter 84. This equipment is critical for growing high-purity crystals from which wafers are sliced.