Czochralski Crystal Puller Furnace
A high-temperature furnace used in the Czochralski method to grow monocrystalline silicon boules from which semiconductor wafers are sliced. It is a key piece of wafer manufacturing equipment classified under HTS 8473.30.91.00 as a part suitable solely for machines of heading 8471 used in semiconductor processing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used for general industrial furnace resistance heating
Furnaces for industrial heat treatment fall under heading 8514, not specific semiconductor machines of 8471.
If classified as a general industrial furnace
Broad industrial or laboratory furnaces are in 8417, excluding those principally for semiconductor processing.
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Import Tips & Compliance
• Verify equipment is dedicated to semiconductor wafer production with manufacturer specs; obtain end-user certificates for cleanroom compatibility; watch for ITAR restrictions on high-tech components
Related Products under HTS 8473.30.91.00
Float Zone Crystal Grower
Apparatus employing the float zone method to produce ultra-pure monocrystalline semiconductor boules without crucibles. Designed exclusively for semiconductor material growth, fitting HTS 8473.30.91.00 as an accessory for 8471 machines.
Semiconductor Crystal Grinder
Precision grinder for shaping crystal boules to exact diameters and flats indicating conductivity and resistivity, per statistical note (a)(ii)(A). Classified in HTS 8473.30.91.00 as a part for 8471 semiconductor machines.
Wafer Slicing Diamond Saw
High-precision diamond wire or blade saw for slicing thin wafers from monocrystalline semiconductor boules, as noted in statistical note (a)(ii)(B). A dedicated accessory for 8471 machines under HTS 8473.30.91.00.
Semiconductor Wafer Lapper
Machine that laps semiconductor wafers to precise flatness and thickness tolerances before polishing, aligning with statistical note (a)(ii)(C). Parts for 8471 heading machines under HTS 8473.30.91.00.
Wafer Edge Grinder
Specialized grinder for chamfering and profiling wafer edges to prevent chipping during handling and processing. Essential wafer preparation equipment classified under HTS 8473.30.91.00 for 8471 machines.
Double-Sided Wafer Polisher
Polishing machine that simultaneously processes both sides of semiconductor wafers to mirror finish and precise flatness, per statistical note. Accessory for heading 8471 under HTS 8473.30.91.00.